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sergiy2304 [10]
2 years ago
11

Which statement is most likely a scientific law?

Chemistry
2 answers:
Annette [7]2 years ago
6 0

Answer:

we need to see the statements

Explanation:

Nadya [2.5K]2 years ago
5 0

Answer:

C) the oldest layers of rock lie below newer layers of rock on earth

Explanation:

i did the test ;P

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What does climate change have to do with glacial change ​
qwelly [4]

Answer:

Because glaciers are so sensitive to temperature fluctuations accompanying climate change. so if it gets hotter then the ice glaciers will melt.

Explanation:

3 0
2 years ago
What is the percent composition HCN?
kupik [55]

Answer:

see calculations in explanation

Explanation:

percent = part/total x 100%

part = ∑ atomic mass of element

  • hydrogen = 1.008 amu (atomic mass units)
  • carbon = 12.011 amu
  • nitrogen = 14.007 amu

total = ∑ molecular mass of compound

       = H amu  +  C amu +  Namu

       = 1.008 amu + 12.011 amu + 14.007 amu

       = 27.026 amu

%H = (1.008amu/27.026amu)100% = 3.730%

%C = (12.011amu/27.026amu)100% = 44.442%

%N = (14.007amu/27.026amu)100% = 51.827%

Check results ∑%values = 100%

3.730% + 44.442% + 51.827% = 99.999% ≅ 100%

7 0
3 years ago
Leandra is baking cookies, and they are ready to come out of the oven. Before she takes them out of the oven, she puts oven mitt
Mamont248 [21]
The answer is Heat energy moves from warmer objects to cooler ones
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2 years ago
Which substance is acting as the Brønsted-Lowry acid in the following chemical reaction? NH4 + OH- yields NH3 + H2O
Ket [755]
The <span> the Brønsted-Lowry acid donates H⁻.
In this reaction Particle that  loose H⁺ is A. NH4⁺ ion.</span>
6 0
3 years ago
Read 2 more answers
What is the primary requirement for a molecule to be analyzed by Gas Chromatography?
BabaBlast [244]

Answer:

b) The molecule has a molecular weight under 200 g/mole

Explanation:

The molecule has a molecular weight under 200 g/mole is the primary requirement for a molecule to be analyzed by Gas Chromatography.

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3 years ago
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