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Fudgin [204]
3 years ago
15

Which pH corresponds with the acidic quality of the rainwater? a.6 b.7 c.8 d.9

Chemistry
1 answer:
jeka943 years ago
8 0
The lower you go, the more acidic. The higher you go, the more alkaline. Your answer would most likely be 6.
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What is the atomic mass/mass number of the atom in the diagram above?
Lelechka [254]

Answer:

the atomic number is 5

the atomic mass is 11

Explanation:

The atomic number is the amount of protons inside the nucleus, and this number also equals the amount of electrons. Since it shows you the nucleus and the electrons, all you need to do is count the protons (positive charge inside the nucleus) or count all the electrons (negative charge outside the nucleus, in the rings) and you should have your atomic number.

As for mass, all you need to do is count all the protons and neutrons inside the nucleus and add them up. Protons = 5, Neutrons = 6. (you add them since the equation for atomic mass is Atomic Mass = Protons + neutrons. This works every time)

5+6= 11, so your atomic mass is 11

I hope this helps :)

3 0
1 year ago
A thermos bottle uses a ______ to keep heat in the thermos
attashe74 [19]

Answer:

a thermos bottle uses a vacuum to keep heat in the thermos.

4 0
2 years ago
PbSO4, Spell out the full name of the compound.​
andreyandreev [35.5K]

Answer:

Lead (II) Sulfate

Explanation:

Don't forget to add the (II) marking indicating that lead has a charge of 2+ (because Sulfate has a charge of 2-, balancing the ion).

4 0
2 years ago
2 Points<br> What is the oxidation state of Cl in HCIO3?<br> A:+5 <br> B:-1<br> C:+6 <br> D: -7
Olenka [21]

Answer:

The oxidation state of Cl in HCIO3 is <u><em>+5</em></u>

3 0
2 years ago
You are given 24.3 grams of Mg and combine it with 32.1 grams of Sulfur, what is the mass of MgS? *
koban [17]

Answer:

ExplanatioFirst let us compute for the molar mass of Mg(OH)2.

molar mass = 24.3 + 2 (16) + 2(1.0)

molar mass = 58.3 g/mol

 

So the mass is then:

mass = 3.2 mol * (58.3 g/mol)

mass = 186.56 gramsn:

5 0
2 years ago
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