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kipiarov [429]
3 years ago
13

How many particles are in 13.5 grams of Beryllium ?

Chemistry
2 answers:
cupoosta [38]3 years ago
6 0
9x10^23 .. this the answer
Marina86 [1]3 years ago
4 0

Explanation:

I don't know this answer what Hydrogen Helium lithium

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6 0
3 years ago
A student performs an experiment to find the percentage of water in a hydrate. He determines that the hydrate contains 22% water
Stels [109]

Answer:

A feasible error could have been the removal of the sample before all water evaporated.

Explanation:

In order to determine the percentage of water in an hydrate, an experiment that could be performed is the heating of the sample until the mass does not change. If the student heated the sample an insufficient amount of time, water will be present in the sample, thus reducing the percentage reported.

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3 years ago
Please help me, please
kumpel [21]
The temperature of a substance is related to the speed of the substance's particles. So, when the temperature of a substance changes,the speed of the particles also changes. So B.
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3 years ago
What name is given to bonds that involve the sharing of electrons?
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A. Covalent bonds is the answer
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