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maria [59]
3 years ago
14

the absolute tempeature of a gas is increased four times while maintaining a constant volume. what happens to the pressure of th

e gas​
Chemistry
1 answer:
ikadub [295]3 years ago
6 0

Answer:

increases

Explanation:

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Choose the statement below that correctly describes electrons.
frutty [35]

Answer:

d. Electrons have a negative charge and are lighter than protons

Explanation:

The best statement that describes electrons is that electrons are negatively charged and are lighter than protons.

There are three known subatomic particles which are:

  • Protons which are the positively charged particles within an atom.
  • Electrons are the negatively charged particles
  • Neutrons do not carry any charges.

The mass of the protons and neutrons are similar.

Electrons are lighter than both protons and neutrons.

3 0
3 years ago
The chemical reaction shown above takes place in a closed system. What is true about the system while the reaction occurs? A. Th
Ede4ka [16]

<u>Answer:</u> In a chemical reaction, the total mass of the particles in the system stays the same

<u>Explanation:</u>

Law of conservation of mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.  

This also means that total mass on the reactant side must be equal to the total mass on the product side in a chemical reaction.

Every balanced chemical reaction follows law of conservation of mass.

<u>For Example:</u> Formation of water molecule

2H_2+O_2\rightarrow 2H_2O

Total mass on reactant side = [2(2\times 1)+(2\times 16)]=36g/mol

Total mass on product side = [2((2\times 1)+16)]=36g/mol

Hence, in a chemical reaction, the total mass of the particles in the system stays the same

5 0
3 years ago
Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)
ZanzabumX [31]

Answer:

limiting reactant

Explanation:

<em>The term that will be used to describe zinc in this case is </em><em>limiting reactant.</em>

A limiting reactant is a reactant that determines the amount of product formed in a chemical reaction. They are often stoichiometrically smaller of all the reactants in a reaction and once they are used up during, the reaction stops.

In this case, the zinc metal in the reaction is completely consumed, making the hydrochloric acid to be in excess. The zinc thus determines the amount of the products formed,

8 0
3 years ago
50 grams of water is placed into a beaker the mass of the beaker is now 115 grams what is the mass of the empty beaker
marissa [1.9K]
65 Grams is the mass of the beaker because you just take the mass   of Water + Beaker and take the water away now you have the mass of the beaker
6 0
3 years ago
The representative particle for KBr is the?​
Flauer [41]

Answer:

This is a chemical symbol for Potassium Bromide

6 0
3 years ago
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