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scoray [572]
3 years ago
5

What does the atomic number of an element tell you?

Chemistry
1 answer:
stiv31 [10]3 years ago
7 0
The atomic number of an element tells you the number of protons that an atom of the given element has.
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How do I solve this?
Oliga [24]

Answer:

The heat contained is 1236 Joules

Explanation:

As we know

Q = mc\DeltaT

Where

\DeltaT is the change in temperature

m is the mass in grams

c is the specific heat of water (ice) = 2.06 joules/gram

Substituting the given values, we get -

Q = 20 * (-15+45)*2.06\\Q = 20*2.06*30\\Q = 1236Joules

6 0
3 years ago
If oxygen, which has an electronegativity of 3.5, bonds with hydrogen, which
vazorg [7]

Answer: covalent bond

Explanation: Yeah that's the answer

5 0
4 years ago
Pa help thank yoeee <3333 ​
Verizon [17]

Answer:

1.c

2.c

3.a

4.b

5.a

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4 0
3 years ago
anyone else go to a question and read though it and realize you brain is not that smart and just move on to a easier one LOL
irina1246 [14]

Answer:

Yeah I have done that many times  LOL

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Explanation:

Hope this helps

MAy I get BraiNeist Pls?

7 0
2 years ago
A gas mixture contains 0.800 mol of N2, 0.200 mol of H2, and 0.150 mol of CH4. What is the mole fraction of H2 in the mixture?
Blababa [14]

Answer:

0.1739

Explanation:

0.800 mol of N2

0.200 mol of H2

0.150 mol of CH4

Total moles of the mixture = 0.8 + 0.2 + 0.150 = 1.150 mol

Mole fraction of H2 = Number of moles of H2 /  Total moles

Mole Fraction = 0.2 / 1.150 = 0.1739

4 0
3 years ago
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