MULTIPLE CHOICE QUESTION

Chemistry

1 answer:

zubka84 [21]3 years ago

4 0

Answer:

This question will be answered based on general understanding of how a controlled experiment should be:

The answer is: We must make sure we are testing/changing only one variable, and controling others

Explanation:

A controlled experiment is an experiment in which the independent variable is changed for a particular group called the EXPERIMENTAL group and unchanged for another group called the CONTROL group.

In a controlled experiment, only one variable should be tested while the others should be kept constant in order to have an effective result or outcome. This is the case in this question, the type of music or soil should be unchanged for each plant because the experimenter must make sure that he/she is testing/changing only one variable, and controling others.

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To produce 8 molecules of ammonia, NH3, we would need ___________ molecules of hydrogen, H2 and ____________ molecules of nitrog

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Answer:

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kirill115 [55]

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Explanation:

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3 years ago

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The elements lithium and oxygen react explosively to from lithium oxide (Li2O). How much lithium oxide will form if 3.03 mol of

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The reaction equation:
2Li + O → Li₂O

Molar ratio of Li to Li₂O is:
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