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Kruka [31]
3 years ago
13

Which of the following is an anion? A. O2– B. Mg2+ C. Al3+ D. H

Chemistry
2 answers:
Alekssandra [29.7K]3 years ago
6 0
An anion is an ion that has gained electrons and because of this it has an overall electrical charge that is negative due to the excess of electrons, which is greater than the atomic number or number of protons for the atom.

A. O2- is the anion.
Alika [10]3 years ago
4 0
An anion is O2- that is option A.
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Can someone please help me with this....?
N76 [4]

Answer:

Explanation:

The answer is D

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2 years ago
What is the molarity of 5.60 mol of sodium carbonate in 1500 ml of solution?
FrozenT [24]

Answer:

3.74 M

Explanation:

We know that molarity is moles divided by liters. The first thing to do here is convert your 1500 mL of solution to L. There's 1,000 mL in 1 L, so you need to divide 1500 by 1000:

1500 ÷ 1000 = 1.50

Now you can plug your values into the equation for molarity:

5.60 mol ÷ 1.50 L = 3.74 M

7 0
3 years ago
1. A student collected the following data for a fixed volume of gas: Temperature (⁰C) Pressure (mm of Hg) 10 726 20 750 40 800 7
zimovet [89]

Answer is: the missing pressure is 1088.66 mmHg.

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p₁/T₁ = p₂/T₂.

p₁ = 960 mmHg; pressure of the gas.

T₁ = 100°C + 273.15.

T₁ = 373.15 K; temperature of the gas.

T₂ = 150°C + 273.15.

T₂ = 423.15 K.

p₂ = p₁T₂/T₁.

p₂ = 960 mmHg · 423.15 K / 373.15 K.

p₂ = 1088.66 mmHg.

6 0
3 years ago
What tendency is the standard reduction potential of an element based on?
Y_Kistochka [10]
I think the answer is B :)
3 0
3 years ago
Read 2 more answers
I need chemistry help text me at (951) 897-8325 PLEASE
user100 [1]
Just post the question on here
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2 years ago
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