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Darya [45]
3 years ago
12

What is a proton?

Chemistry
1 answer:
Scrat [10]3 years ago
3 0

Answer:

the positively charged particle found in atomic nuclel

Explanation:

protons carry positive charge and attracts negatively charged particles called electron

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Atom A and Atom B have the same number of protons and neutrons, but they do not have the same nun ber of
Bogdan [553]

Answer:

The atoms have the same chemical symbol.

6 0
3 years ago
A 28.5 gram piece of iron is added to a graduated cylinder containing 45.5 mL of water. The water in the cylinder rises to the 4
yan [13]

7.91 g/ml is the density of the iron piece of 28.5 gms.

Explanation:

The density of a substance is defined as the volume it occupies.  It tells the matter present in a substance.

The density is mass per unit volume and is denoted by p.

The formula for density is given by:

density (p) = \frac{mass}{volume}

Data given is :

mass= 28.5 grams

V1 = 45.5 ml

V2= 49.1 ml

The initial volume of water was 45.5 ml, when iron piece of 28.5 grams was added the final volume was 49.1 ml.

Putting the values in the equation of density

p = \frac{28.5}{49.1-45.5}

p = 7.91 g/ml

Since iron is a dense material it will occupy less volume

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3 years ago
The density of gas particles in a section of Earth’s atmosphere decreases. Which of the following is the most likely explanation
Bad White [126]
<span>This is due to the fact that the air pressure in that certain section of Earth’s atmosphere decreased. As density of gas particles decreases as air pressure decreases. Therefore, density of gas particles and air pressure have a direct relationship. An increase in air pressure would then effect to an increase in gas particles. </span>
6 0
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Which outcome is the main function of the light-dependent reactions of photosynthesis?
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