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ohaa [14]
4 years ago
11

Which of the following compounds is a molecule?

Chemistry
2 answers:
photoshop1234 [79]4 years ago
8 0

Answer:

H2

Explanation:

Molecule: a name applied to any compound whose major bonding pattern is covalent.

H2 contains one element, hydrogen. When an atom bonds with another atom of the same element, it is called a diatomic molecule. Diatomic molecules are formed through covalent bonds.

seraphim [82]4 years ago
6 0
<span>all but NaCl, molecules are ionic bonding this is Ionic.</span>
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A student needs exactly 1 gram of baking powder to conduct an experiment. The balance reads 0.37 grams. How
sammy [17]

Answer:

B

Explanation:

If the student needs one gram but so far only has 0.37 grams, then the amount they need is the difference between what they need and how much they already have. 1-0.37=0.63 grams.

...which isn't actually an option because none of them have decimal points but I would say it is B anyway because it is the equivalent ratio and maybe there was a typo.

Hope this helped!

6 0
4 years ago
Read 2 more answers
Who is good with science?
MrMuchimi
I can help with science.
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3 years ago
What is the nuclear binding energy of an atom that has a mass defect of 5.0446 x 10-29 kg?
lutik1710 [3]
I think it is 4.54 x 10-12
3 0
3 years ago
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Helium gas diffuses 4 times as fast as an unknown gas. What is relative molecular mass of the gas​
Inessa05 [86]

The relative molecular mass of the gas​ : 64 g/mol

<h3>Further explanation</h3>

Given

Helium rate = 4x an unknown gas

Required

The relative molecular mass of the gas​

Solution

Graham's Law

\tt \dfrac{r_1}{r_2}=\sqrt{\dfrac{M_2}{M_1} }

r₁=4 x r₂

r₁ = Helium rate

r₂ = unknown gas rate

M₁= relative molecular mass of Helium = 4 g/mol

M₂ = relative molecular mass of the gas​

Input the value :

\tt \dfrac{4r_2}{r_2}=\sqrt{\dfrac{M_2}{4} }\\\\16=\dfrac{M_2}{4}\\\\M_2=64~g/mol

7 0
3 years ago
What describes a mixture
kirill [66]

Answer:

a mixture is a material made up of two or more different substances which are physically combined.

4 0
3 years ago
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