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adell [148]
2 years ago
6

7. I have 2.50 x 1023 atoms of titanium. How many moles of titanium dol have?

Chemistry
1 answer:
algol132 years ago
4 0

Answer:

0.42mole

Explanation:

Given parameters:

Number of atoms of titanium  = 2.5 x 10²³atoms

Unknown:

Number of moles  = ?

Solution:

To solve this problem, we must understand that a mole of any substance contains the Avogadro's number of particles.

              6.02 x 10²³ atoms makes up 1 mole of an atom

              2.5 x 10²³ atoms will contain \frac{2.5 x 10^{23} }{6.02 x 10^{23} }   = 0.42mole

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tia_tia [17]

Answer: 0.5 kg

Explanation:

Force of launched skyrocket = 10 N

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Recall that Force is the product of the mass of an object by the acceleration by which it moves.

i.e Force = Mass x Acceleration

10N = Mass x 20m/s^2

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Mass = 0.5 kg

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4 0
3 years ago
PLEASE HELP!!!
yuradex [85]

This might be right. Im not quite sure. This is what my 5th grade science teacher told me. 'Look at the 2 LR's and add them together. Then look at the total amount which is 32. When you add the 2 LR's you get 17. So subtract 17 from 32 and you get 15. So: C:15 is your answer." (LR's stands for liquid reactants)

10+17=17

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32-17=15

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Hope this Helps

7 0
3 years ago
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hoa [83]

Answer:

Explanation:

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Si +  Hg2S ---> SiS2 + Hg

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2 years ago
The partial negative charge in a molecule of water occurs because ________. a. the electrons shared between the oxygen and hydro
navik [9.2K]

Answer:

a. the electrons shared between the oxygen and hydrogen atoms spend more time around the oxygen atom nucleus than around the hydrogen atom nucleus.

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