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Nonamiya [84]
3 years ago
7

Which particles make up the nucleus of an atom?

Chemistry
2 answers:
tresset_1 [31]3 years ago
7 0
Made of protons and neutrons I agree with that person :)
Lostsunrise [7]3 years ago
4 0
The nucleus is made of protons and neutrons
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Plz answer question (ii)
Vanyuwa [196]

Answer:

  1. At the negative electrode: Mg(s) => Mg2+ + 2e-
  2. At the positive electrode:Cl- + 2e- => Cl2(g)

Explanation:

1. Magnesium is formed at the negative electrode.

2. Chlorine gas is released at the positive electrode.

6 0
3 years ago
When small pieces of manganese oxide were added to a solution of hydrogen peroxide, water and oxygen were produced. Manganese ox
Evgesh-ka [11]

The change which increase the rate of the reaction is by increasing the amount of solution.

<h3>What is the rate of the reaction?</h3>

Rate of the reaction gives idea about the speed of the completion of the reaction or the formation of the products.

Given chemical reaction is:
2H₂O₂ \overset{MnO_{2}}{\rightarrow} 2H₂O + O₂

In the above chemical reaction MnO₂ acts as a catalyst which helps in increasing the rate of the reaction without being involved in the reaction. So the formation of the product depends only on the concentration of the solution. So, by increasing the solution amount will increase in the rate.

Hence, increasing the amount of solution will increase the rate.

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brainly.com/question/7578129

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6 0
2 years ago
Organelles that use energy from sunlight to produce food are called mitochondria
arsen [322]

Answer:

Organelles that use energy from sunlight to produce food are called mitochondria.

False

3 0
3 years ago
What is the significance of writing the formula of Sodium chloride as NaCl, and Sodium sulfide as Na2S?
vodomira [7]

Answer:

There is 1 Sodium in NaCl, but 2 Sodiums in the sulfide. I can’t write it properly. But the “2” should be a subscript.

Explanation:

6 0
3 years ago
A sample of chlorine gas is confined in a 5.0 L container at 328 torr and 37 degrees C. How many moles of gas are in the sample?
Tatiana [17]
The  number of moles  of   gas  in  the  sample   of  chlorine  gas   is  calculated    by  use   of  ideal  gas  equation 
that  is  PV=nRT
n=number   of  moles
R= gas  constant  (  62.36367 l.torr/k.mol)
P=pressure
V=volume
from  ideal  gas  equation  n=  PV/RT
n=  (328  x5.0)/ ( 62.36367  x310)=  0.085  moles
8 0
3 years ago
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