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Kryger [21]
3 years ago
12

Round off 35.65 to three significant figures. help

Chemistry
1 answer:
Nataliya [291]3 years ago
3 0
The answer is B 35.7
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Why do atoms get smaller as you move across a period
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Neutral atoms get smaller as you move across the periodic table from (left to right) because the atom increases in electrons. The more electrons, the bigger the effective nuclear charge (electron and proton attraction) and so basically the atom shrinks.
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In the equation. C + O2 --------> CO2; CO2 is the
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Answer: Product

Explanation:

A Chemical reaction shows how substances, written in symbols  known as  reactants, are converted to different substances called products. An arrow from the left hand side (reactants) points to right hand side ( products )shows the direction of  flow of reaction.

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7 0
3 years ago
Cecil writes the equation for the reaction of hydrogen and oxygen below.
Wittaler [7]

Answer:

C) to show that atoms are conserved in chemical reactions

Explanation:

When writing a chemical reaction, we should always consider the Mass Conservation Law, which basically states that; in an isolated system; the total mass should remain constant, this is, the total mass of the reactives should be equal to the total mass of the products

For this case, we should add the apporpiate coefficients in order to be in compliance with this law:

2H₂ + O₂ → 2H₂O

So, we can check the above statement:

For reactives (left side):

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For product (right side):

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5 0
3 years ago
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Answer:

no it's not solid rather it's an aqueous

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8 0
2 years ago
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