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Olenka [21]
3 years ago
15

10. Waves bounce back when they meet a surface. This is called...

Chemistry
1 answer:
bogdanovich [222]3 years ago
7 0
When waves bounce back after meeting a surface, it is called Reflection.
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NeTakaya

Answer: ability to undergo a chemical reaction

Explanation:

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Which statement best describes the properties of covalent compounds?
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Covalent network. <span>A solid that is extremely hard, that has a very high melting point, and that will not conduct electricity either as a solid or when molten is held together by a continuous three-dimensional network of covalent bonds. Examples include diamond, quartz (SiO </span><span>2 </span>), and silicon carbide (SiC). The electrons are constrained in pairs to a region on a line between the centers of pairs of atoms.<span>


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Describe at least three ways our understanding of the atom has changed overtime?
myrzilka [38]

Answer:

multitide of uses (drinking, cleaning, cooking, transportation). Without water we would not survive. -Lead atoms bond together and they make up the lead that we use as a pencil. -Copper atoms, aluminum atoms, nickel atoms, etc., all make up metal which is used for a variety of things in everyday life.

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3 years ago
How many moles of water are produced from 15 moles of oxygen?
Grace [21]

Answer:

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Explanation:

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The equation, balanced, would have to be: 2H2 + O2 -----> 2H2O

I multiply 15 moles O2 by the molar ratio of (hydrogen/oxygen)

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8 0
3 years ago
I really need help, I don’t know what to do on this
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Answer:

A: dependent variable

B: experimental group

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7 0
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