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Eduardwww [97]
3 years ago
15

How does repeatability have an affect on scientific research?

Chemistry
1 answer:
sasho [114]3 years ago
7 0

A. is the answer, because the more an experiment is repeated, it will become apparent if it yields the same results thus confirming or debunking the hypothesis.

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PLEASE HELP DUE TODAY
11111nata11111 [884]

Formula mass, molar mass and Avagadro's number.

Explanation:

number of atoms in a compound can be calculated by knowing the molar mass of the compound or element, the result will be multiplied by avagadro's number (6.022*10^23)

1 mole of a substance is equal to Avagadro number of atoms.

If the number of moles is known of a compound or element its molar mass can be calculated as:

n= Weight of the compound/element given/ molecular weight of the same.

  formula mass is the mass of compound ie chemical compound formed with different molecules. its mass is calculated by adding the molar masses of all the elements taking part in its assembly.

5 0
3 years ago
The table below shows the height of a ball x seconds after being kicked.
irga5000 [103]

Answer:

-16

81

19

Explanation:

8 0
3 years ago
Read 2 more answers
What is the overall charge of a Aluminum atom that loses 3 electrons​
Rudik [331]
It’s charge was neutral due to the equal number of protons and electrons. when it becomes an ion it loses 3 electrons leaving behind only 10. the answer is 10. the equation is +13 +(-10)=+3
8 0
3 years ago
What is the product of the following chemical equation?
g100num [7]

Answer: carbon dioxide and water

Explanation:

C3H8 + 5O2 —> 3CO2 + 4H2O

6 0
3 years ago
What molality of a nonvolatile, nonelectrolyte solute is needed to raise the boiling point of water by 7.10°c (kb = 0.520°c/m)?
faltersainse [42]
According to boiling point elevation equation:
Δ T = i Kb m
when ΔT (change in boiling point) = 7.10 C° 
and i (van't Hoff factor)= 1
and Kb = 0.520
so, by substitution:
7.10 = 1*0.520 *m
m = 7.1 / 0.52 = 13.65 m
7 0
3 years ago
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