HELP PLZZZZZZZZZZZZZ I WILL GIVE BRAINLIST!!!!!!!!!!!
If you place Alka -Seltzer tablets in a closed container of water, the tablets effervescence then produce a gas. What will eventually happen inside this closed container?

A. Not enough information to determine.
B. The pressure decreases.
C. The pressure increases.
D. The pressure remains the same.

Answers

Answer 1

Answer:

c the pressure increases


Related Questions

What element is the least reactive: Si
or Ba?

Answers

Answer:

Noble gases are the least reactive of all known elements. That's because with eight valence electrons, their outer energy levels are full.

Elements: Argon

Explain five physical and/or chemical properties that you need to consider for the substances before using them as construction materials for buildings

Answers

Answer:  There are many properties of a metal which is taken into consideration when it is used for construction

Explanation:

The properties can be physical, chemical, et cetera. The physical properties that is considered are:

1. Durability:  It can be defined as the property of the material to withstand the atmospheric pressure and other factors.

2. Density: The ratio of mass by volume of a material (homogeneous material) is called as density.

3. Fire resistance: The ability of the material to withstand in fire without changing its size or shape.

4. Weather resistance: The ability of the material to withstand the weather which could be variable round the year.

5.Water absorption: The ability of the material to absorb water and retain it.

What number do we use to represent the connection of a solid, liquid, or solvent?

Answers

Answer:Molarity tells us the number of moles of solute in exactly one liter of a solution. (Note that molarity is spelled with an "r" and is represented by a capital M.) We need two pieces of information to calculate the molarity of a solute in a solution: The moles of solute present in the solution

Explanation:

HELP!!! 2Mg+O2->2MgO
What are the products of this reaction??
WILL GIVE BRAINLEST​

Answers

Answer:

the products which is formed in the given reaction is MgO ( magnesium oxide )

Explanation:

when magnesium metal reacts with oxygen present in air it burns with a white dazzling flame

to form white powder of magnesium oxide (MgO)

here's the balanced chemical reaction for it

2Mg+O2->2MgO

how many atoms are in 1.50 moles of He?

Answers

1.50 x 6.02 x 10^ 23 = 9.03 x 10^23 atoms of He

what is galvanization ?​

Answers

Explanation:

The most common hot dipping process for industrial applications is galvanizing, which refers to the coating of zinc over iron or steels for rust proofing. It is an extremely versatile and easy means of providing corrosion protection for construction materials exposed to atmospheric conditions

Which type of reaction is NaCI + AgNO3
NaNO + AgCI?
O synthesis
O decomposition
O oxidation
O replacement

Answers

Answer:

replacement

Explanation:

There are two types of replacement reactions.

Double replacement:

It is the reaction in which two compound exchange their ions and form new compounds.

AB + CD → AD +CB

Single replacement:

It is the reaction in which one elements replace the other element in compound.

AB + C → AC + B

The given reaction is double replacement reaction because anion and cation of both reactants exchanged with each other.

Other options are incorrect because,

Decomposition reaction:

It is the reaction in which one reactant is break down into two or more product.

AB → A + B

Synthesis reaction:

It is the reaction in which two or more simple substance react to give one or more complex product.

Oxidation:

Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.


What is the difference between condensation and evaporation?

Answers

Condensation is the phase change from gas to a liquid, whereas evaporation is the phase change from liquid to gas.

what is chemistry?

in your own word please 2-3 sentence ​

Answers

Answer:

the science that deals with the properties, composition, and structure of substances they undergo, and the energy that is released or absorbed during these processes.

Explanation:

Answer:

Is the scientific branch that deals with the composition and decomposition of elements and compounds in nature

Please help! Due today. Look at the image:
Reuploaded

Answers

Answer:

3

Explanation:

2+2=4-1=3 quick maths

___ and ___ are located in the nucleus of the atom while ____ exist in orbitals in the empty space outside of the nucleus

Answers

Answer:

Neutrons and Protons, Electrons

Explanation:

Neutrons and protons are in the inside as electrons orbit around it in a circular pattern

How many moles of chlorine atoms are in 6.3 × 1023 chlorine molecules?

Answers

Answer:

(6.3x10^23)/(6.02x10^23) = 1.047 mol Cl

The number of moles of the chlorine atoms in the 6.022 × 10²³ molecules of chlorine is equal to 2.10 mol.

What is Avogadro's number?

Avogadro’s number can be used to express the number of entities in one mole of any substance and these units can be atoms, molecules, ions, electrons, or protons, depending upon the kind of chemical reaction or reactant and product.

The Avogadro’s constant has a numerical value approximately equal to 6.022× 10²³ mol⁻¹.

Given, the number of molecules of chlorine = 6.3× 10²³

As the one chlorine mole has chlorine atoms = 2

The number of moles of chlorine molecules in 6.3× 10²³ will be :

= 6.3× 10²³/ 6.022× 10²³ = 1.05 moles

One mole of chlorine molecules has Cl atoms = 2 moles

1.05 moles of chlorine molecules have Cl atoms = 2 × 1.05 = 2.10 mol

Therefore, the number of moles of Chlorine atoms is equal to 2.10.

Learn more about Avogadro's number, here:

brainly.com/question/11907018

#SPJ2

HELP!!! ASAP!!!! WILL MARK BRAINLIEST!!!!






A certain covalent compound contains sulfur bonded to chlorine. Which of the following statements about this compound is correct?
Question 5 options:

A)

Electrons will reside closer to sulfur, and the bond will be non-polar.

B)

Electrons will reside closer to sulfur, and the bond will be polar.

C)

Electrons will reside closer to chlorine, and the bond will be polar.

D)

Electrons will reside closer to chlorine, and the bond will be non-polar.

Answers

Answer:

C) Electrons will reside closer to chlorine, and the bond will be polar

Explanation:

Electrons tend to be closer or attracted to high electronegativity and sulfur has less electronegativity than chlorine. Therefore, electrons will reside closer to chlorine. To find out if it is polar or nonpolar, according to the electronegativity chart you can find online, you can see that the electronegativity of sulfur is 2.5 while the electronegativity of chlorine is 3.0. Because the difference between these two is a slight change, it would be slightly polar. So, the bond will be polar.

Answer:

Electrons will reside closer to chlorine, and the bond will be polar.

Explanation:

What is the relationship between specific heat and the rate of heating?

Answers

Answer:

the rate of heat transfer is directly proportional to the mass flow rate.

Explanation:

There is an elementary equation from basic thermodynamics that states that the rate of heat transfer (Q) equals the mass flow rate (M) times a Constant (the specific heat of water) times the Delta T (fluid temp out minus fluid temp in): Q = M x C x Delta T In other words, the rate of heat transfer is directly proportional to the mass flow rate.

ehat is the name of the hydrate Ba(OH)2 8 H2O​

Answers

Answer: Barium hydroxide octahydrate

Explanation:

18. Which statement about photosynthesis is FALSE?
a
Tilmy green pigment chlorophyll captures light
energy
b Oxygen is needed as a reactant to produce
glucose
The process converts light energy from the
csun into chemical energy in the bonds of
glucose.
d
Carbon dioxide is needed as a reactant to
produce glucose.

Answers

your query :

Which statement about photosynthesis is FALSE?

Answer:

b. Oxygen is needed as a reactant to produce

glucose is the incorrect statement here

Explanation:

plants uses simple raw materials to prepare their food , which includes water ( H2O ) and Carbon dioxide ( CO2 ).

and traps sunlight by Green pigments known as chlorophyll and stores these energy in bonds of glucose molecules

so ,

after this reaction glucose and oxygen is formed as products

● hence we conclude that Oxygen is not needed as a reactant to produce glucose , oxygen is the bi product formed during photosynthesis.

How can you demonstrate the helium takes up space?

Answers

Answer = you can fill up a balloon with helium and it shows that it takes up space
You can demonstrate that helium takes up space by putting a balloon on a balance scale. If the scale tips to one side, then you know the balloon takes up space. You can demonstrate that a balloon takes up space by weighing it.

Compare and contrast atoms and molecules. Cite specific examples from the readings, as well as what you may already know, to support your comparison.

Answers

Answer:

The main difference between an atom and a molecule lies in the size: while the atom is the smallest unit into which matter can be divided into any of its states, a molecule is the union of a group of atoms, that is, this composed of several atoms. Thus, for example, a water molecule is composed of two hydrogen atoms and one oxygen atom (H2O). Therefore, it can be said that atoms are the smallest unit in which the chemical elements of the world can be divided, while molecules are the particles of matter that are formed through the combination of these elements.

If a sample of nitroglycerin containing 2 mL (density = 1.592g/mL) is detonated, how many total moles of gas are produced? If each mole of gas occupies 55L under the conditions of the explosion, how many liters of gas are produced? How many grams of nitrogen gas are specifically produced?

Answers

Total moles of gas = 0.1225

Volume of gas produced : 6.7375 L

mass of Nitrogen : 0.588 g

Further explanation

Given

2 ml of Nitroglycerin(ρ=1.592 g/ml)

Required

Total moles of gas

Solution

Nitroglycerin detonated ⇒ decomposition reaction

4C₃H₅N₃O₉(s)⇒ 6N₂(g)+12CO(g)+10H₂O(g)+7O₂(g)

mass of Nitroglycerin :

[tex]\tt mass=2~ml\times 1.592~g/ml=3.184~g[/tex]

moles of Nitroglycerin :

[tex]\tt moles=\dfrac{3.184}{227,0865~g/mol}=0.014[/tex]

Total moles of gas:

[tex]\tt \dfrac{6+12+10+7}{4}\times 0.014=0.1225[/tex]

Volume of gas produced :

[tex]\tt 0.1225\times 55=6.7375~L[/tex]

moles of Nitrogen :

[tex]\tt \dfrac{6}{4}\times 0.014=0.021[/tex]

mass of Nitrogen :

[tex]\tt 0.021\times 28=0.588~g[/tex]

Which of the following is a device that
breaks down light into colors and
produces an image of the spectrum,
which can help determine the chemical
composition of a star?
A. barometer
B. phonograph
C. spectograph
D. altimeter

Answers

The right answer is C.
The correct answer is C

Can you help me balance the following chemical equation?!
Al(OH)3 + H2CO3 = Al2(CO3)3 + H2O

Answers

Answer: [tex]2Al(OH)_3+3H_2CO_3\rightarrow Al_2(CO_3)_3+6H_2O[/tex]

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants.

The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The balanced chemical equation will be :

[tex]2Al(OH)_3+3H_2CO_3\rightarrow Al_2(CO_3)_3+6H_2O[/tex]

(sand) and (Sand with water) both of them are heterogeneous
mixture isn't it?​

Answers

Answer:

yes true

Explanation:

both are heterogeneous

25 points!!! please Which types of elements areconsidered neutraland Where are these types of elements found on the periodic table

Answers

Elements which composed of an equal amount of three components protons, neutrons and electrons are considered neutral elements. example of neutral elements are hydrogen, helium, lithium and beryllium...

Question 7 of 10
Which of the following elements has the largest first ionization energy?
A. Boron (B)
B. Oxygen (0)
C. Carbon (C)
D. Nitrogen (N)

Answers

The answer should be B. Oxygen

Clouds, precipitation, and _____ occur at frontal boundaries

Answers

Answer:

Hi! I think it's storms.

Answer:

I think evaporation

Explanation:

because clouds and precipitation are listed i am not entirely sure if I were u i would double check

31. The rise of warm air and replacement of it by cooler air forms a
A
radiation current
B
convection current
C
conduction current
D
ocean current

Answers

Answer:

the answer is c

Explanation: since i helped can i have brainlist

C. Convection current

Could someone pls help me if you know it!!

Answers

Answer:

Beautiftul, begging under F

honest, beginning in thrid line under A

hopeful, fifth line under F

Explanation:

Which process produces the energy that powers a solar calculator?
A. Nuclear fusion
B. Chemical decay
C. Radioactive decay
D. Nuclear fission​

Answers

Answer:

For solar energy, Nuclear Fusion occurs. You can research this for more detail.

Explanation:

Answer:

nuclear fission

Explanation:

Apart from cost, give three reasons why steel should be recycled

Answers

Answer:

Well, acutally it shouldnt..but why it should be recycled is because 1. you can use it for many nessactities such as cars and blades, and bikes

You should also recycle it for, scrap parts! so just in  case if you need recycled steel ya know where to get it

Lastly, you should recycle steel because of its value. If you recycle steel then melt it, and make well i dont know, a blade out it, you might have just made something, and then think, "Well that was fun and easy, i wanna use more recycled items to build or forge things

Explanation:

Hope this helps and pls mark brainlest!

Answer:

i think because its cause pollution

Explanation:

when making steel a lot of pollution goes in the atmosphere so if you recyle the the steel we may less pollution [ im only 12 so im sorry if this was wrong]

WILL MARK YOU BRAINIEST

Answers

It’s the crust because its the furthest away from the inner core which i think is the hottest so therefore is the crust is the coldest!
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