Chemistry High School

Isaiah rolls a tennis ball along the ground. Which of the following best explains what will happen if forces act on the ball?

Answers

Answer 1

Answer:

what are the following

Explanation:

what are the options?

Answer 2

Answer:

the ball will stop moving

Related Questions

What is the function of the system shown in the diagram?
O A. removal of wastes
OB. absorption of nutrients into the bloodstream
O C. carrying oxygenated blood and nutrients to cells
O D. transmitting and receiving messages

Answers

Answer:

the answer is carrying oxygenated blood and nutrients to cells

What must be known to find an object's average speed?
*direction and time
*distance and time
*displacement and direction

Answers

Answer:

distance and time

Explanation:

total distance/ total time

which of the following is true about these diagrams

Answers

Answer:

N/A NO DIAGRAM

Explanation:

N/A NO DIAGRAM

N/A NO DIAGRAM N/A NO DIAGRAM

N/A NO DIAGRAM

N/A NO DIAGRAM N/A NO DIAGRAM

N/A NO DIAGRAM

The area of a circle is 38.5 cm². Calculate.
(a) the radius

Answers

The Answer is 3.501591994

Explanation:

area of circle = πr^2

radius=

39.5 = 22/7*r^2

r^2 = 7*39.5/22

= 12.56

r=3.5

Convert 15.75 grams of Magnesium to atoms.

Answers

Answer: [tex]3.903\times 10^{23}[/tex]

Explanation:

Given

Mass of magnesium is [tex]m=15.75\ gm[/tex]

The molar mass of magnesium [tex]M=24.3\ g/mol[/tex]

No of moles in 15.75 g of magnesium is

[tex]\Rightarrow n=\dfrac{15.75}{24.3}\\\\\Rightarrow n=0.648\ \text{moles}[/tex]

1 mole contains [tex]6.022\times 10^{23}[/tex] atoms

So, 0.648 moles contain [tex]0.648\times 6.022\times 10^{23}[/tex]

[tex]=3.903\times 10^{23}\ \text{atoms}[/tex]

1
According to the text, what is reduction?

Answers

you forgot to attach the text

BTW reduction is the action or fact of making a specified thing smaller or less in amount, degree, or size.

in which of these compounds are there twice as many oxygen atoms as hydrogen atoms?

Answers

Answer:

G - H2SO4

Explanation:

two hydrogen atoms and 4 oxygen atoms

Como se explica o fato de o diamante e o grafite serem formados pelo mesmo elemento, o carbono, e serem materiais completamente diferentes?

Answers

Answer:

Ver explicacion

Explanation:

La capacidad de un elemento de existir en diferentes formas en el mismo estado físico se conoce como alotropía.

No es solo el carbono el que exhibe alotropía. También se sabe que el azufre y el fósforo exhiben alotropía.

Hay dos alótropos cristalinos de azufre; grafito y diamante. El grafito y el diamante difieren en la disposición de los átomos de carbono y la naturaleza de los enlaces entre los átomos de carbono en ambas sustancias.

Por lo tanto, el grafito y el diamante tienen propiedades físicas y químicas observadas completamente diferentes debido a las diferencias en la disposición de los átomos de carbono en cada sustancia, así como a las diferencias en la naturaleza de los enlaces entre los átomos de carbono en ambas sustancias.

Hydrocarbons separated by fractional distillation of petroleum can be cracked to make
useful shorter chain products.
Which substance is not a product of the cracking of propane, M, 44?
A C.Hg
B C2H4
C C3H6
DH2
Q Zoom image
Answer:
{ x R X
Daraaranh
a
o
זחו

Answers

Answer:

c.hg cannot be cracked for fractional distillation as there is only one of each

Explanation:

What reactants form a combustion reaction?

Answers

Answer:

Hydrocarbon and oxygen

Explanation:

"a substance reacts with oxygen gas, it must involve O² as one of the reactants."

Using this, we can confirm Hydrocarbon and oxygen is a valid one.

What happens to the pH of the solution as you add more substance to it?

Answers

Answer:

If it's a buffer solution, the pH remains unchanged.

If it's a normal solution, and an acidic substance is added to it, the pH lowers.

If a basic substance is added to it, the pH increases.

if you’re adding an acid, PH decreases. If you’re adding a base/alkali, PH increases

Please someone help ! I need it ASAP

Answers

Answer:

6.B

7.B

Explanation:

Mark me as brainliest

6b
7b
Are the correct answers

according to the periodic table, which two elements have an atomic mass less than twice their atomic number?

Answers

Answer:

Hydrogen and Oxygen

Explanation:

Hydrogen atomic mass = 1.008 amu

atomic mass = 15.999 amu

According to the periodic table, two elements whose atomic mass is less than twice their atomic number are hydrogen and oxygen.

The atomic number of an atom refers to the number of protons in that atom. It serves as an identity for atoms of elements. The atomic mass of element is the weighted average of the masses of all the isotopes of the element.

The atomic number of oxygen is 8 while the atomic number of hydrogen is 1. The atomic mass of oxygen is 15.999 amu while the atomic mass of hydrogen is 1.0008 amu.

We can see that twice the atomic number of oxygen gives sixteen while twice the atomic number of hydrogen gives two. Therefore, two elements whose atomic mass is less than twice their atomic number are hydrogen and oxygen.

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Calculate the freezing point of a nonionizing antifreeze solution containing 388 g ethylene glycol, C2H6O2, and 510 g of water.

Answers

Answer:

T° freezing solution = -22.8°C

Explanation:

To solve this problem we apply, the Freezing Point Depression. This is a colligative property which its formula is:

T° freezing pure solvent - T° freezing solution = Kf . molality . i

i = Van't Hoff factor.

We have been informed is a nonionizing solute, so i = 1

Our solute is ethylene glycol, so le'ts determine the moles to get molality

388 g . 1 mol / 62.07 g = 6.25 moles

molality (m) = moles of solute /kg of solvent

We convert mass of solvent, water, to kg → 510 g . 1kg /1000g = 0.510 kg

6.25 mol /0.510kg = 12.25 m

We replace at formula → 0°C - T° freezing solution = 1.86°C/m . 12.25 m . 1

T° freezing solution = -22.8°C

What happens when light passes through a solution? perform an activity with a homogenous to expalin what happen when light pass through it.

Answer fast and pls read the question ;-; and will give u brainliest

Answers

Answer:

light bends and makes effects in the water

Explanation:

What is the amount of moles of NaOH, if the solution molarity is .33 M NaOH in 0.75 L solution

Answers

Answer:

The amount of moles of NaOH is 0.0495

Explanation:

Molarity is a measure of concentration that is defined as the number of moles of solute that are dissolved in a given volume.

In symbolic form molarity is presented as:

[tex]Molarity=\frac{number of moles of solute}{volume}[/tex]

Molarity is expressed in units [tex]\frac{moles}{liter}[/tex].

In this case:

Molarity= 0.33 MNumber of moles of solute= ?Volume= 0.75 L

Replacing in the definition of molarity:

[tex]0.33 M=\frac{number of moles of solute}{0.75 L}[/tex]

number of moles of solute= 0.33 M* 0.75 L

number of moles of solute= 0.0495 moles

The amount of moles of NaOH is 0.0495

Answer:

0.248 moles of NaOH

Explanation:

Concept of Molarity is mol/L

[x] = 1 M

1 mol of x contained in 1 L of solution. We write molar concentrations between []

M = mol/L then M . L = mol

Our solution is NaOH

0.33 M . 0.75L = mol

This solution contains 0.248 moles of NaOH

do earths plates meet at boundaries

Answers

Answer:

Earth's plates meet at BOUNDARIES. Breaks in the crust called FAULTS form where plates meet. ... Most TRANSFORM BOUNDARIES where plates move apart occur along the mid-ocean ridges.

Explanation:

i hope this helped you ;)

The wording of these questions are confusing how would you set this up ?

The formula is m1v1=m2v2

Answers

Answer:

8. 171074.8 mL

9. 3475 mL.

Explanation:

8. Determination of the volume of the diluted solution.

Initial Molarity (M₁) = 14 M

Initial volume (V₁) = 523 mL

Final Molarity (M₂) = 0.0428 M

Final volume (V₂) =?

Using the dilution formula, we can obtain the volume of the diluted solution as follow:

M₁V₁ = M₂V₂

14 × 523 = 0.0428 × V₂

7322 = 0.0428 × V₂

Divide both side by 0.0428

V₂ = 7322 / 0.0428

V₂ = 171074.8 mL

Therefore, the volume of the diluted solution is 171074.8 mL

9. Determination of the volume of water added.

We'll begin by calculating the final volume of the solution. This can be obtained as follow:

Initial Molarity (M₁) = 3.2 M

Initial volume (V₁) = 973 mL

Final Molarity (M₂) = 0.7 M

Final volume (V₂) =?

M₁V₁ = M₂V₂

3.2 × 973 = 0.7 × V₂

3113.6 = 0.7 × V₂

Divide both side by 0.7

V₂ = 3113.6 / 0.7

V₂ = 4448 mL

Thus, the final volume of the solution is 4448 mL

Finally, we shall determine the volume of water added. This can be obtained as follow:

Initial volume (V₁) = 973 mL

Final volume (V₂) = 4448 mL

Volume of water added =?

Volume of water added = V₂ – V₁

Volume of water added = 4448 – 973

Volume of water added = 3475 mL

which two technologies use reflected sound waves
A. Ultrasound imaging B. Sonar C.Radar D. Solar panels

Answers

Answer: The answer is B.Sonar and C.Radar

Explanation:

They are both just like an echo which is the main things that uses reflected sound waves. They are basically like synonyms for echo.

if i put regular air into a ziplock bag does carbon dioxide come out?

Answers

Carbon dioxide is released. Because the bag is sealed closed and no air can escape, it inflates like a balloon.

The Centers for Disease Control and Prevention (CDC) recommends that public health actions be initiated when the level of lead in a child’s blood is 5 micrograms per deciliter (µg/dL) or more. What is this in ppm? ( 1 dL = 0.1 dm^3)

a) 5 ppm
b) 0.5 ppm
c) 50 ppm
d) 0.05 ppm

Answers

c is the best for this

25) In a certain area where there are many farms, the groundwater levels have dropped by as much as 10 m over a period of 30 years. The main cause behind this is MOST LIKELY

A) the evaporation of water from aquifers.

B) the excessive pumping of water through wells.

C) the leakage of fertilizers from the farms into the aquifer.

D) the construction of a dam to divert water into a reservoir.
NO LINKS!!!
I will give Brainliest to 1st right answer!

Answers

Answer:

I a, answering so the other dude can get brainily oh and yeah its b

Explanation:

The excessive pumping of water through well is the major reason for the drop of ground water level. The nearby farms over use water and pumps from undergrounds.

What is underground water?

Water beneath the earth surface is called ground water. The storage of ground water is a very important in all areas to sustain our need for water and it must be maintained pure without the presence of overdose of heavy metals and other impurities.

Reduction in the level of ground water storage is a serious issue that might leads to a scenario where the drinking water is not sufficient. The uncontrolled use of pump water by factories, industries and farms results in the drop of ground water level.

The nearby farms might pumping water from sources uncontrollably in the area. That is the main reason of dropping in ground water level. Hence, option B is correct.

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Balance the following reaction:
C2H6(g) + O2(g) → CO2(g) + H2O(g)

Answers

2 C2H6(g)+ 7 O2(g)-> 4 CO2(g) + 6 H2O(g)

To calculate the atoms of an element in a given molecule, we need to multiply stoichiometry by the number that is written on the foot of that element. Therefore, the balanced equation is

2C[tex]_2[/tex]H[tex]_6[/tex](g) + 7O[tex]_2[/tex](g) → 4CO[tex]_2[/tex](g) + 6H[tex]_2[/tex]O(g)

What is Balanced equation?

Balanced equation is the one in which the total number of atoms of a species on reactant side is equal to the total number of atoms on product side. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, displacement reaction.

C[tex]_2[/tex]H[tex]_6[/tex](g) + O[tex]_2[/tex](g) → CO[tex]_2[/tex](g) + H[tex]_2[/tex]O(g)

Multiply by 7 on reactant side and by 6 on product side to balance oxygen

C[tex]_2[/tex]H[tex]_6[/tex](g) + 7O[tex]_2[/tex](g) → CO[tex]_2[/tex](g) + 6H[tex]_2[/tex]O(g)

Now balance carbon and hydrogen

2C[tex]_2[/tex]H[tex]_6[/tex](g) + 7O[tex]_2[/tex](g) → 4CO[tex]_2[/tex](g) + 6H[tex]_2[/tex]O(g)

Therefore, the balanced equation is

2C[tex]_2[/tex]H[tex]_6[/tex](g) + 7O[tex]_2[/tex](g) → 4CO[tex]_2[/tex](g) + 6H[tex]_2[/tex]O(g)

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R is the ideal gas constant. We know it is equal to 0.0821. What is the unit for R?
L•atm/mol K
L•atm/mol · °C
mL • atm/mol. K
L• kPa/mol - K

Answers

Answer:

A. L•atm/mol K

Explanation:

The ideal gas law equation is given as follows:

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = gas law constant

T = temperature (K)

As rightly stated in this question, R is the ideal gas constant, which can be different depending on the unit of the other components.

At STP;

V = 22.4L

P = 1 atm

T = 273 K

n = 1 mole

Hence, using PV = nRT

R = PV/nT

R = 1 × 22.4/1 × 273

R = 22.4/273

R = 0.08205

Approximately, R = 0.0821

With the units of P as atm, V as L, n as mol and T as K; R will be 0.0821 L•atm/mol K

Is a hydrogel a smart polymer/stimuli-responsive polmer?

Answers

Polymer scientists have been trying to mimic this behavior by creating so called smart polymers. ... One of the most important classes of stimuli-responsive polymers used for controlled drug delivery is crosslinked polymer networks, e.g., hydrogels and microgels.
Hopefully this helps if not I’ll try rewriting it

Answer:

Explanation:

why would a farmer add calcium hydroxide to his soil

Answers

Increase the growth

Which organelle stores the information that determines an individual blood type

Answers

Answer:organelle 1

Explanation:

Organulo 1 is the organelle that stores the information that determines an individual blood type. The correct option is option A.

What is organelle?

A tiny cellular component known as an organelle serves a specialised purpose within a cell. The cytoplasm of prokaryotic and eukaryotic cells contains organelles. Organelles are frequently encased by a separate membrane in eukaryotic cells because they are more complicated.

Similar to the internal organs of the body, organelles are specialised and carry out important tasks required for proper cellular function. Organelles are responsible for a variety of tasks, such as powering a cell's energy needs and regulating its development and reproduction. Organulo 1 is the organelle that stores the information that determines an individual blood type.

Therefore, Organulo 1 is the organelle that stores the information that determines an individual blood type. The correct option is option A.

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Your question is incomplete but most probably your full question was,

Why did the discovery of electrons mean that an atom must contain some positive charge?

WARNING!!!!!!!!!: NO LINKS OR I WILL REPORT YOU!!!!!

Answers

Answer

electrons are very small, so every atom would have to contain a whole lot of electrons.Atoms must also contain some type of positively charged material which balances the negative charge on the electrons.

Explanation:

J.J. Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Rutherford's gold foil experiment showed that the atom is mostly empty space with a tiny, dense, positively-charged nucleus.

hope this helped

What is the molarity of 5.60 mol of sodium carbonate in 1500 ml of solution?

Answers

Answer:

3.74 M

Explanation:

We know that molarity is moles divided by liters. The first thing to do here is convert your 1500 mL of solution to L. There's 1,000 mL in 1 L, so you need to divide 1500 by 1000:

1500 ÷ 1000 = 1.50

Now you can plug your values into the equation for molarity:

5.60 mol ÷ 1.50 L = 3.74 M

What are the 2 common uses for Copper?

Answers

for electrical equipment such as wiring and motors. also for construction exm. roofing and plumbing, and industrial machinery

Copper's most common use is in electrical equipment such as wiring and motors. Copper is also used in roofing, guttering, plumbing, cookware and cooking utensils.

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What can u refer about Twain's view of religion? Give an example Which is an example of situational irony in "Wherefore Art Thou Romeo?Shondra is trying to help, but she ends up making it harder for the narrator to understand her lines.The reader knows that the narrator will forget her lines during the reading, but the narrator does not know.Allison greets the narrator in a friendly manner even though the two do not like one another.The narrator succeeds by focusing on Allison, the person she thought would ruin her performance. please answer asapp A chemist wants to show how the molecular structures of the major greenhouse-effect contributors allow them toabsorb heat.Which of the following would the chemist not be modeling?A) carbon dioxideB) carbon monoxideC) chlorofluorocarbonsD) nitrous oxideE) methane gas Which area on the map benefited MOST from the space program? A)1 (B)2 (C)3 (D)4 located in location madison country :] pls answer!!!! What is the missing number 30 10 = 30 ?Please helpppppp 1 Macbeth's vision of the dagger prior to killing Duncan: *is an allusion to the coming murder of BanquoIs the result of Macbeth's troubled mindIs sent by the witchesIs believed to be a warning not to do it by Macbeth2 The lines: "With Tarquin's ravishing strides, towards his design / Moves like a ghost offers an example of: *foreshadowinghyperbolemetaphorsimile3 Lady Macbeth's behavior following the murder of Duncan may best be described as: *frantic and overwhelmedhopeless and despondentcalm and controlledgentle and king4 Following the murder of Duncan, Macbeth is concerned that: *He is unable to pray.He left the daggers in the room.He made too much noise.He woke Banquo.5 At the end of Act II, Scene ii, Macbeth: *Exhibits remorse for the killing of DuncanSuggests they must wash their handsBelieves the knock at the door is a signalSuggests that they must hide the daggers6 The idea that the Porter pretends to be a gatekeeper in hell is an example of: *MetaphorHyperboleIronySoliloquy7 The Porter's lines: *offer insight into the murder of Duncanare meant to be read with a level of seriousnessprovide an example of comic reliefoffer evidence of Macbeth's guiltf 8 In speaking with Macbeth before the murder of Duncan is reported by Macduff, Lennox: *explains why he should be the next kingtells of the unusual things that they encountered that nighttells of the need to overthrow Duncanexplains the need for order in the kingdom9 When Macduff says: "Confusion now hath made his masterpiece / Most sacrilegious murder," he is suggesting: *The murder is sacred.The murder goes against God.The murder is a confusing masterpiece.The murder has him confused.10 Macduff's comment to Lady Macbeth: "O gentle lady, / 'Tis not for you to hear what I can speak: / The repetition, in a woman's ear, / Would murder as it fell" provides an example of: *hypocrisymetaphorallusionirony11 When Donalbain says: "There's daggers in men's smiles," he is suggesting: *He and his brother are under suspicion of killing Duncan.He is suspicious of the people around him.Daggers were used to kill Duncan.Smiling is considered inappropriate because of the murder of Duncan.12 When the old man says: "A falcon, tow'ring in her pride of place, / Was by a mousing owl hawked at and killed," it is apparent that: *The natural order of the world has been turned upside down.The old man is an avid hunter.The natural order of the world is in tact.Duncan's kingdom is continuing on as usual.13 Based on what is said at the end of Act II: *The guards are believed to have been bribed to kill Duncan by Banquo.Malcolm and Donalbain are believed to have been involved in the murder of Duncan.Malcolm and Donalbain are headed to Scone.Macduff is attending the crowning of the new king. PLZZZZZ HELP THIS IS DUE TODAY 1. If CA = 12 cm, what is the measure of ER?1CDCD Heres just another one and my answer was 417.45 and says Im wrong Im I missing something? PLSSSSSSSSS HELP MEEEEEEEEEEEEEEEEEEEEEEEE What is the outlook for marketing career opportunitiesA The number of jobs in marketing is fallingB The number of jobs in marketing will remain steadyC no one knows what the outlook is for jobs in marketingD The number of jobs in marketing is on the rise Find the difference:5 27 7 I need help on what to do The way a paragraph is constructed is called ___ ___. (2 words) A protostar turns into a star when it is hot enough for nuclear fusion to turn hydrogen into? Solve the following formula for t.W = C + Crt Tony bought 48 roses for $24. How much do 24 roses cost? Select the correct answer.Who introduced Arabic numerals to Italy, which helped make bookkeeping possiOA.BrunelleschiO B.Cosimo de MediciO c.FibonacciOD.Gregory XIO E.Giovanni de Bicci de MediciSocial studies help me please!!!!! and thank you! PLEASE HELP MEEEEE!!