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NNADVOKAT [17]
3 years ago
12

Question 1 (6 points) a. Fill in the blanks in the following paragraph to correctly describe the nucleus of an atom. (1 point)an

d are the two types of nucleons that make up a nucleus. The force exists between in the nucleus because of their charge. Because it is repulsive, this force tends to make a nucleus . However, the force acts between protons, between neutrons, and between protons and neutrons. This force helps to make a nucleus , because it is always attractive.
Chemistry
1 answer:
g100num [7]3 years ago
3 0

Answer:  No blnks, but I'll do my best.

Proton and neutrons

unstable

nuclear

stable

Explanation:  Requires ISP to see the blanks

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How many mol are in 8.23 x 10^24 formula units of calcium carbonate
tensa zangetsu [6.8K]

Answer:

13.7 moles

Explanation:

Given data:

Number of moles calcium carbonate = ?

Formula units calcium carbonate= 8.23 × 10²⁴

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

For example,

18 g of water = 1 mole = 6.022 × 10²³ molecules of water

1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen

For 8.23 × 10²⁴ formula units:

one mole = 6.022 × 10²³ formula units

8.23 × 10²⁴ formula units × 1 mole /6.022 × 10²³ formula units

13.7 moles

7 0
3 years ago
A 50 W engine generates 50 J of energy. How long did it run for?
Inessa [10]
The engine ran for 10 second
6 0
3 years ago
Read 2 more answers
(08.02 MC)
lesantik [10]

Answer:

d. 0.208 M NaOH

Explanation:

M[NaOH] = 23+16+1= 40g/mol

2.40L = 2.4dm3

M=m/Mv

M=20.0g/40g/mol×2.4dm3

M=20.0g ÷ 96

M= 0.208 M NaOH

3 0
3 years ago
PLEASE HELP ME! THANK YOU IF YOU DO!!! ^^
frozen [14]

Answer:

oceanic formation is the right answer.

Explanation:

this os becoz they slide a past each other and do not rub against each other

4 0
3 years ago
A student titrates 10.00 milliliters of hydrochloric acid of unknown molarity with 1.000 m naoh. it takes 21.17 milliliters of b
Dima020 [189]
Mole ratio for the reaction is 1:1
no of moles in NaOH that reacted= 1*21.17/1000=0.02117mols
 molarity of HCl=0.02117*10/1000
                         =2.117M
4 0
3 years ago
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