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Ira Lisetskai [31]
3 years ago
10

Which option(s) correctly shows an anion? Select all that apply. ​

Chemistry
1 answer:
nata0808 [166]3 years ago
7 0

Answer:

x

Explanation:

becaue neutron equal to mass num -atomic num

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What things are needed to form a hail storm?​
Basile [38]

Answer:

Hail is a type of precipitation, or water in the atmosphere. Hail is formed when drops of water freeze together in the cold upper regions of thunderstorm clouds. These chunks of ice are called hailstones. Most hailstones measure between 5 millimeters and 15 centimeters in diameter, and can be round or jagged.

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6 0
3 years ago
Which of these is a common to all chemical changes
Kamila [148]
C. A new substance is produced. All others are physical changes.
5 0
3 years ago
Read 2 more answers
I need help on this.
mina [271]
The answer would for sure be D
6 0
3 years ago
Please someone help WHATS the answer
blsea [12.9K]
The average atomic mass: 40.078 u
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5 0
2 years ago
The ksp of pbi2 is 1.4 x 10-8. what is the molar solubility of lead(ii iodide in a solution of 0.400 m sodium iodide?
tino4ka555 [31]
The solubility product of a substance us calculated by the product of the concentration of the dissociated ions in the solution raise to the stoichiometric coefficient of the ions. Therefore, we need the dissociation reaction. For this, it will have the reaction:

PbI2 = Pb^2+ + 2I-

We solve as follows:

Ksp = [Pb2+][I-]^2 = <span>1.4 x 10-8
</span><span>1.4 x 10-8 = x(2x)^2
</span><span>1.4 x 10-8 = 4x^3
x = 1.5x10^-3 M

The molar solubility would be </span>1.5x10^-3 M.
8 0
2 years ago
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