criser1987zach

29.10.2019 • 

Chemistry

Need answer asap, will give !
which of the following statements about atoms and molecules is correct?
select one:
a. only elements contain atoms; all compounds contain molecules.
b. only pure substances contain atoms; mixtures contain molecules.
c. atoms contain one or more molecules.
d. molecules contain two or more atoms.
e. molecules are impure substances.

Ответ:

marcos86

08.01.2022

Chemistry

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D

Molecules consist of multiple atoms put together to create a new form.

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Ответ:

lesl26

30.11.2020

Chemistry

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weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.

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