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stepladder [879]
3 years ago
7

During which process does an atom gain one or more electrons?

Chemistry
1 answer:
valentinak56 [21]3 years ago
7 0
<em><u /></em>oxidation i say 33333333333333333333333
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kumpel [21]
Answer number 2 is correct
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3 years ago
The mass of a block is 12 g and the volume is 6 ml. Calculate the density of the block. (science)
zalisa [80]

Answer:

<h3>The answer is 2.0 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question

mass = 12 g

volume = 6 mL

We have

density =  \frac{12}{6}  \\

We have the final answer as

<h3>2.0 g/mL</h3>

Hope this helps you

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Explanation:

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3 years ago
If 70 mL of a 0.4 M Ba(NO3)2 solution is mixed with excess amount of a Na2CO3 solution, what is the theoretical yield of the pre
Sindrei [870]

The theoretical yield of BaCO3 is 5.5

<h3>What is theoretical yield?</h3>

The theoretical yield is the yield calculated from the stoichiometry of the reaction. The equation of the reaction is;

Ba(NO3)2(aq) + Na2CO3 (aq) ------> BaCO3(s) + 2NaNO3(aq)

Number of moles of limiting reactant: 0.4 M × 70/1000 = 0.028 moles

Since the reaction is 1:1,om;y 1 mole of BaCO3 is formed. Hence, mass of BaCO3 = 0.028 moles × 197 g/mol = 5.5g

Learn more about theoretical yield: brainly.com/question/2506978

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