Define the term compound

Chemistry

1 answer:

dalvyx [7]3 years ago

7 0

Answer:

A compound is a substance which contains two or more elements chemically combined together.

A compound is formed as a result of a chemical change.

Explanation:

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A student needs exactly 1 gram of baking powder to conduct an experiment. The balance reads 0.37 grams. How

sammy [17]

Answer:

Explanation:

If the student needs one gram but so far only has 0.37 grams, then the amount they need is the difference between what they need and how much they already have. 1-0.37=0.63 grams.

...which isn't actually an option because none of them have decimal points but I would say it is B anyway because it is the equivalent ratio and maybe there was a typo.

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Lera25 [3.4K]

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True or false? an element consists of only single atoms of that element. a. True b. False

larisa [96]

From what i read, the answer should be b--false

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How many moles of water are produced when 5 moles of hydrogen gas react with 2 moles of oxygen gas?

Marysya12 [62]

4 moles of water are produced

Explanation:

4 moles of water are produced when 5 moles of hydrogen is reacted with 2 moles of oxygen gas
The balanced equation given is when 2 moles of hydrogen reacts with 1 mole of oxygen and it forms 2 moles of water.
The equation we have to solve is the 5 moles of hydrogen is reacting with 2 moles of oxygen gas, we can write the equation as $5H_{2} +2O_{2} --> 4H_{2} O + H_{2}$
This is the balanced equation when 5 moles of hydrogen reacts with 2 moles of oxygen. The balanced equation means the number of hydrogen atoms and oxygen atoms on both sides would be equal in number.

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