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irinina [24]
3 years ago
5

How do you know that a bowling ball is a soild

Chemistry
1 answer:
julsineya [31]3 years ago
4 0
It holds its own shape and it’s solid
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describe some acidic oxides that can be prepared by the thermal decomposition of nitrates and carbonates​
ale4655 [162]
The oxidation is the best thing
7 0
3 years ago
Both AM and FM radio signals have the same of what.....
sweet [91]
Both AM and FM radio signals have the same frequencies at times.
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3 years ago
The weights of all elements are always compared to oxygen.
marishachu [46]

Answer:

The weights of all elements are always compared to the Carbon-12.

Explanation:

The weights of all elements are always compared to the Carbon-12 because the mass of carbon is 12 which is the exactly the sum of protons and neutrons.  

Oxygen was also considered the standard for some time but later this stander was rejected because in natural O¹⁷ and O¹⁸ were also present and this create the two different atomic mass tables.

AMU:

Atomic mass unit is define as the 1/12 the mass of an atom of carbon-12.

C12 has six neutron and six protons in the nucleus.

This unit is used to express the masses of atoms. We know that masses of atoms are very small and we do not have any such type of balance that can measure very small quantity. So that is way we use this scale to measure small quantity. For example, according to this scale

relative atomic mass of hydrogen is 1.008 amu

relative atomic mass of oxygen is 15.999 amu

relative atomic mass of uranium is 238.0289 amu

relative atomic mass of chlorine is 35.453 amu

7 0
3 years ago
Which layer of ground contains organic matter and tiny rock particles?
Ann [662]

Answer:

A Horizon - The layer called topsoil; it is found below the O horizon and above the E horizon. Seeds germinate and plant roots grow in this dark-colored layer. It is made up of humus (decomposed organic matter) mixed with mineral particles.

4 0
3 years ago
Matter appears to be conserved in chemical reactions but not in nuclear reactions because:
Vlad [161]
I think the best answer is B. Even this is the broadest case for the Conservation of matter and the one for Energy, the only way this can be applied is in nuclear rxns.
8 0
3 years ago
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