2 years ago

What atom is the smallest size? A. Li B. Be C. F D. C

Chemistry

1 answer:

s2008m [1.1K]2 years ago

7 0

Answer:

Explanation:

lies to the left of periodic table

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What are the terms that descripe these values for the element oxygen?

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16 is the mass number. 8 is the atomic number.

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2 years ago

HRISTINA HERRERA: Attempt 1

Lunna [17]

Answer:

7.5 g of hydrogen gas reacts with 50.0 g oxygen gas to form 57.5 g of water.

Explanation:

Here we have the check if the mass of the reactants is equal to the mass of the products.

Reactants

$7.5+50=57.5\ \text{g}$

Products

$57.5\ \text{g}$

The data is consistent with the law of conservation of matter.

Reactants

$50+243=293\ \text{g}$

Products

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The data is not consistent with the law of conservation of matter.

Reactant

$17.7+34.7=52.4\ \text{g}$

Products

$62.4\ \text{g}$

The data is not consistent with the law of conservation of matter.

Only the first data is consistent with the law of conservation of matter.

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2 years ago