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marin [14]
3 years ago
5

When driving your car, you hear a squeal every time you press the brakes. You decide the problem is that there's a mouse trapped

in the brakes.
This is an example of a _____.

hypothesis
law
theory
Chemistry
2 answers:
mestny [16]3 years ago
5 0

Answer:

Hypothesis

Explanation:

arsen [322]3 years ago
4 0
Hypothesis because law don’t make sense and theory is for something that already has data behind it. In this case you don’t do it’s not hypothesis
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Which of the following processes will determine the number of moles in a sample? Dividing the mass of the sample by Avogadro's n
Olenka [21]

The answer is: Dividing the number of molecules in the sample by Avogadro's number.

The Avogadro’s number is the number of atoms in 12 grams of the isotope carbon-12 (¹²C).

Na is Avogadro number or Avogadro constant (the number of particles, in this example carbon, that are contained in the amount of substance given by one mole).

The Avogadro number has value 6.022·10²³ 1/mol in the International System of Units; Na = 6.022·10²³ 1/mol.

For example:

N(Ba) = 2.62·10²³; number of atoms of barium.

n(Ba) = N(Ba) ÷ Na.

n(Ba) = 1.3·10²⁴ ÷ 6.022·10²³ 1/mol.

n(Ba) = 2.158 mol; amount of substance of barium.

6 0
3 years ago
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Answer:

Gravitional Force

Explanation:

Every planet has a gravitational pull which attracts all objects; the moon is no exception. It says forces in the question but I know for sure gravitational force is apart of it.

3 0
2 years ago
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What do you use to find the actual amount of reactants
Rasek [7]

You need to use Stoichiometry

6 0
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What kind of intermolecular forces act between a hydrogen chloride molecule and a hydrogen iodide molecule?
wlad13 [49]

Answer:

Since ΔEN > 0, the bond is covalent polar and the molecule is polar (dipole). Since ΔEN > 0, the bond is covalent polar and the molecule is polar (dipole). HI and ClF interact through a dipole-dipole force

Explanation:

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