Chemistry High School

Ill give brainlest to the one who answers right.

Answers

Answer 1

the answer would be h2o

Related Questions

Help meeeeeeeeeeeeeee

Answers

Answer:

Copper = Cu

Gold = Ag

Iron = Fe

Potassium = K

Cu
Ah
Fe
K
Those are the answers hope this helps

Would a 5-pound bag of iron nails be as dense as a single iron nail?

Answers

Yes. It would be if all the nails are exactly the same.

Answer:

Yes

Explanation:

The system containing all the muscles of the body especially those involved in movement CONSIST of the three types of muscle skeletal smooth and cardiac

Answers

The muscular system is involved in movement and has skeletal, smooth, and cardiac muscles

how many barr bodies are found in a normal human female nucleus

Answers

Answer:

One Barr body

Explanation:

A container contains three gases. If the partial pressure of carbon dioxide is 0.50 atm, the partial pressure of nitrogen is 0.30 atm, and the partial pressure of methane is 0.40 atm, what’s the total pressure inside the container?

Answers

Answer:

1.20 atm

Explanation:

Do not let chemistry questions SCARE you! The TOTAL means

ADD THEM UP.

You can do this without a scientific calculator :-)

0.50 +0.30 + 0.40 = 1.20 atm

Please help. Thank you!
what is the electron configuration of uranium at its ground state (in order) AND noble gas configuration?

Answers

Answer: Uranium is a chemical element with atomic number 92 which means there are 92 protons and 92 electrons in the atomic structure. The chemical symbol for Uranium is U. Electron configuration of Uranium is [Rn] 5f3 6d1 7s2. Possible oxidation states are +3,4,5,6.

Explanation:

Answer:

Electron configuration of uranium at its ground state: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6s6 5f3 6d1 7s2

Noble gas configuration: [Rn] 5f3 6d1 7s2.

Heat packs are used to relax muscles. Some heat packs contain iron in a small packet. To
activate this type of heat pack, you need to increase the pressure and introduce oxygen
to create iron(III) oxide which produces the heat needed for muscles to relax. This
reaction in an example of what type of reaction?

Answers

Heat packs are used to relax muscles. This reaction is an example of exothermic reaction.

What is exothermic reaction?

Exothermic reaction is defined as a reaction that is chemical in nature and is characterized by the release of energy in the form of heat and light.

It can also be defined as a thermodynamic process or reaction that releases energy from system to its surroundings.

Endothermic reaction is defined as the chemical reaction in which the reactants absorbs heat energy from the surroundings to form product.

Endothermic reaction can also be defined as a reaction in which the system absorbs energy from its surroundings in the form of heat.

Being endothermic enables us to live in cooler environments and regulate our body temperatures in order to fight infection.

Thus, heat packs are used to relax muscles. This reaction is an example of exothermic reaction.

To learn more about exothermic reaction, refer to the link below:

https://brainly.com/question/10373907

#SPJ5

Which of these statements is false?
A. Electrons have a negative charge
B. Electrons have a mass of 1 amu
C. The nucleus of an atom is positively charged
D. The neutron is found in the nucleus of an atom

Answers

Answer:

The answer is b

Explanation:

Hope it helps

b) electrons have a mass of 1 amu

electrons have a mass of 0 amu

Someone pls help me I will make you brain

Answers

Answer:

it is c greenhouse effect please mark me brainliest

Explanation:

Answer:

green house effect

Explanation:

The answer is green house effect.

Boron has two naturally-occurring isotopes. Boron-10 has an abundance of 19.8% and actual mass of 10.013 amu, and boron-11 has an abundance of 80.2% and actual mass of 11.009 amu. What is the average atomic mass for all isotopes of boron?

A 10.0 amu

B 10.5 amu

C 10.511 amu

D 10.812 amu

Answers

Answer:

D) 10.812

Explanation:

Given:

The two isotopes of boron (B).

Boron-10 has an abundance of 19.8% and Boron -11 has an abundance of 80.2%

To find:

The atomic mass of europium.

Solution:

Mass of Boron-10 = 10.013 amu

The percentage abundance of Boron-10 = 19.8%

The fractional abundance of Boron-10 =0.198

Mass of Boron-11 = 11.009 amu

The percentage abundance of Boron-11= 80.2%

The fractional abundance of Boron-11= 0.802

The average atomic mass of Boron = A.M

A.M = Mass of isotope x Fractional abundance of isotope

= 10.013amu x 0.198 +11.009amu x 0.802 = 10.81u

Therefore, D) 10.812 amu is the atomic mass of boron.

Hòa tan hoàn toàn 1,93 gam hỗn hợp 2 kim loại Fe và Al vào dd HCl dư, sau phản ứng thu được m gam muối và 1,456 lít khí H2 ở đktc. Giá trị của m là:

Answers

Answer:

Sorry pal! Didn't understand your language.

Explanation:

If you have two pistons in a system, which exerts the larger force?

Answers

Answer:

The larger piston

Explanation:

(i just took the same test)

If you increase the force on an object, its acceleration increases. True or false

Answers

Answer:

true

Explanation:

from Newton's second law of motion ,we can understand that acceleration of a body is directly proportional to the force applied on it and inversely proportional to its mass ,so as the force applied increase,the acceleration also increases

What chemical compound is produced as a result of photosynthesis?
a

Answers

Answer: Specifically, plants use energy from sunlight to react carbon dioxide and water to produce sugar (glucose) and oxygen.

Explanation:

glucose

the overall chemical reaction for photosynthesis is: 6 CO2 + 6 H2O + light → C6H12O6 + 6 O.

Carbon Dioxide + Water + Light yields Glucose + Oxygen

14. An atom has 10 protons, 8 electrons, and 7 neutrons. What is the charge of the
atom and what type of ion is it?

Answers

Answer: the atom is a CATION (ion) of +2 charge.

Explanation:

The charge on an atom = # of protons - # of electrons

= 10 - 8

= +2

∴ the atom is a CATION (ion) of +2 charge.

Please answer quickly

Answers

Answer:

a) II and III

is the correct

who is considered the father of the periodic table

Answers

Answer:

Dmitri Mendeleev

Explanation:

In the fall, how does the high pressure area
affect the hurricane?

Answers

Answer:

Hurricanes occur when ocean water warms during the spring, summer and early fall.

Explanation:

Warm air just above the water’s surface rises. The rising warm air creates a reduction in pressure at the surface, what meteorologists call a low-pressure area. Because nearby air is at a higher pressure, it will flow into the low-pressure zone.

https://www.sidmartinbio.org/how-does-a-high-pressure-system-affect-a-hurricane/

Suppose a high-flying jumbo jet with a mass of 45,000 kg cruises at constant velocity when the thrust of its engine is a constant 80,000 N. What is the acceleration of the jet?

Answers

Answer:

1.78 m/s²

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

[tex]a = \frac{f}{m} \\ [/tex]

f is the force

m is the mass

From the question we have

[tex]a = \frac{80000}{45000} = \frac{80}{45} \\ = 1.77777...[/tex]

We have the final answer as

1.78 m/s²

Hope this helps you

how much mass is in a proton

Answers

Answer:

1.673 x 10^-27 kg

Explanation:

1.67262 × 10−27 kg, which is 1,836 times the mass of an electron

______Is analyzed by qualitative methods

A. The identify of the poison used in a murder.
B. The amount of poison used in a murder.
C. The location of the poison used in a murder.
D. The method used by the suspect to kill the person.

Answers

Answer:

A. The identify of the poison used in a murder.

Explanation:

HAAAAAALP MEEEEEEEEEEE

Answers

Answer:

It would contain 10.

Explanation:

The atomic number: the number of protons.

wants to help?
it's agriculture science not chemistry

Answers

Answer:

the jamaians need food to survive

Explanation:

What is a paper clip, a colloid? solution? or a suspension?

Answers

Answer:

I'm gonna guess it's a suspension

Explanation:

let me know if I'm wrong

why do garden manure and compost fertilize the soil

Answers

gardens arent real the government is lying the world is a simulation

As the soil absorbs manure, nutrients are released. This enriches the soil, which in turn helps the plants. The most important benefit of using manure in the garden is its ability to condition the soil For instance, mixing manure with sandy soils helps to retain moisture levels.

Viết các phương trình phản ứng dưới dạng phân tửvà ion thu gọn trong các trường hợp sau đây:a)CaCl2+ K2CO3b)Zn(OH)2+ KOH 

Answers

God is the answer because he sucks balls respectfully

An atom of an element with atomic number 48 and mass number 120 contains
A. 48 protons, 48 electrons, and 72 neutrons
B. 72 protons, 48 electrons, and 48 neutrons
C. 120 protons, 48 electrons, and 72 neutrons
D. 72 protons, 72 electrons, and 48 neutrons
Option 5

Answers

Answer:

Explanation:

proton remains same as the atomic number

electron remains same as the atomic number

Mass no.- atomic no. = Neutrons

yall help, i missed like a week
some of them are wrong, I need all of 1 and 2

Answers

Answer:

a. Azane

b. sulphur hexachloride

c.carbon tetrachloride

d. Carbon disulfide

e.Umbelliferone

f.Disilicon hexabromide

g. Dinitrogen trifluoride

If a proton is added to the nucleus of germaium what out comes would acure

Answers

When a proton is added to the germanium nucleus, then its atomic number becomes 33, which is the atomic number of arsenic.

HOPE THIS HELPS YOU!!!!

Someone pls help me I will make you brain

Answers

Answer:

the answer is A for this question

A I’m not sure mark me brainliest if I’m right

Other Questions

how long ago did sharpeville massacre occur i need to finish all my hw because ir my last day to do them FilipinoGrade 8Ang dalaga ng buying na langit at tumakas at nagtago mula hinata ng pangumanon,isang higante na may palamuti sa ulo na abot ang mga ulap.Bilang isang dalaga,mahihinuha mong________________________.A. May galit ang dalaga ng bohung na langit sa banata na Pangumanon.B. Natatakot ang dalaga ng buhong na langit sa binata ng Pangumanon.C. May ibang nangingibig sa dalaga ng buhong na langit at natatakot siya rito.D.Nais paglaruan ng dalaga ng bohung na langit ang damdamin ng binata Pangumanon. WILL MARK BRAINLIEST AND 50 PTS This table shows the minutes students spent studying for their science exam and the scores they received. SHOW YOUR WORKStudy time (min) 19 12 34 10 17 42 60 15 9 21 30 50Exam score 82 78 90 78 85 97 100 85 73 90 91 98Use a graphing calculator to model the data using a linear function. What is the correlation coefficient of the data?0.740.480.930.98 An airplane during departure has a constant acceleration of 3 m / s.a. What is the speed that the plane reaches in 4 s?b. If the plane passes at a flight point ofat a speed of 20 m / s, what is the speed 8 s later? please help. I don't understand the questions Which represents the solution(s) of the system of equations, y = x2 6x 16 and y = 4x 37? Determine the solution set algebraically. (3, 25) (3, 49) (3, 25) and (7, 9) (3, 49) and (7, 65) which two metals led to the prosperity of the kingdom of ghana Which of the following elements is not a metalloid? When a corporation takes complete ownership of a property, it is considered to be ownership intenancy in common.joint tenancy.partnership.severalty. Someone help me I will mark you as brain Hellur, give me an FIGURATIVE LANGUAGE original idea explain operation Barbarossa 2. In these diagrams, the sunlight is coming from the left, as shown by the arrows. Whichdiagram is accurate and why? (1)a) A is accurate because the half of the Moon that is facing the sun is it by the sun, and theother half is dark.b) B is accurate because the whole Moon is bright as long as there are no shadowscovering parts of it.c) C is accurate because the Moon is almost as close as it can be to the sun, and so theMoon is almost fully lit by the sun.d) All three diagrams are sometimes accurate because the Moon has some lighter-coloredrock and some darker-colored rock, and the half of the Moon with the lighter-coloredrock rotates to face different directions. Read this excerpt from Poor Harold.A room in Washington Square South. By the light of a candle, a young man in tousled hair and dressing gown is writing furiously at a little table. A clock within strikes seven.A door at the back opens, and a young woman looks in, sleepily. She frowns. The young man looks up guiltily.SHE. What are you doing?HE. (innocently) Writing.SHE. So I see. (She comes in, and sits down. It may be remarked that a woman's morning appearance, in dishabille, is a severe test of both looks and character; she passes that test triumphantly. She looks at the young man, and asks) Poetry?HE. (hesitatingly) No. . . .SHE. (continues to look inquiry).HE. (finally) A letter. . . .SHE. (inflexibly) To whom?HE. (defiantly) To my wife!SHE. Oh! That's all right. I thought perhaps you were writing to your father.HE. (bitterly) My father! Why should I write to my father? Isn't it enough that I have broken his heart and brought disgrace upon him in his old age SHE. Disgrace? Nonsense! Anybody might be named as a co-respondent in a divorce case.HE. Not in Evanston, Illinois. Not when you are the local feature of a notorious Chicago scandal. Not when your letters to the lady are published in the newspapers. Oh, those letters!SHE. Were they such incriminating letters, Harold?HAROLD. Incriminating? How can you ask that, Isabel? They were perfectly innocent letters, such as any gentleman poet might write to any lady poetess. How was I to know that a rather plain-featured woman I sat next to at a Poetry Dinner in Chicago was conducting a dozen love-affairs? How was I to know that my expressions of literary regard would look like love-letters to her long-suffering husband? That's the irony of it: I'm perfectly blameless.Answers:Which excerpt uses direct characterization?The young man looks up guiltily_.HE. (hesitatingly) No. . . .HE. (defiantly) To my wife!That's the irony of it: I'm perfectly blameless. The term that is used to quantity the amount of heat in the evaporator is Which of the following values makes the equation4x 8 = 4 true?3113 PLSSS HLEPP ME OUTT ITS URGENTTTT All of the following indicate a possible pest infestation EXCEPT:Dust underneath a storage shelfShredded paper towels in a corner of the dry storage areaEgg casings behind the refrigeratorGnaw marks on a trash can 5. A student measures the mass of an object three times on a balance in order to calculate the objectsdensity. The recorded masses are 70.21 g, 64.55 g, and 74.70 g. The accepted value for the mass ofthe object is 70.21 g.a. Are these measurements accurate? Why or why not?b. Are the measurements precise? Why or why not?