How many atoms are in 165 g of calcium?

Explanation:

According to the mole concept, 1 mole of every atom contains atoms.

It is given that mass is 165 g and molar mass of calcium atom is 40.078 g/mol.

Hence, number of moles of calcium atom will be calculated as follows.

                No. of moles =

                                      =

                                      = 4.117 mol

Therefore, atoms present in 4.117 mol of calcium are as follows.

                atoms/mol.

                   = atoms

Thus, we can conclude that there are atoms in 165 g of calcium.

the answer is yes

it has kinetic energy

reason

an object has kinetic energy when you stop the force carrying it, the object will stay in motion.

hope this contact me for more questions if you'd like: )

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.