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densk [106]
3 years ago
11

What is the mass percent composition of an element in a molecule?

Chemistry
1 answer:
Ray Of Light [21]3 years ago
8 0

Answer:

The fraction of the molecule's mass that comes from the element's mass.

Explanation:

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Which of the following best defines balanced forces?
Mars2501 [29]

Answer:

Balanced forces are forces that act in opposite directions and cancel each other out

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2 years ago
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3 years ago
For the reaction
azamat

Answer:

Mass = 5.56 g

Explanation:

Given data:

Mass of Cl₂ = 4.45 g

Mass of NaCl produced = ?

Solution:

Chemical equation:

2Cl₂ + 4NaOH     →   3NaCl + NaClO₂ + 2H₂O

Number of moles of Cl₂:

Number of moles = mass/molar mass

Number of moles = 4.45 g/ 71 g/mol

Number of moles = 0.063 mol

Now we will compare the moles of Cl₂ with NaCl.

                  Cl₂         :         NaCl

                    2          :          3

                 0.063      :        3/2×0.063 =0.095 mol

Mass of NaCl:

Mass = number of moles × molar mass

Mass = 0.095 mol × 58.5 g/mol

Mass = 5.56 g

7 0
3 years ago
Help me answer this chemistry question. thank you!
Leona [35]

Answer:

A. How much decay happens in each flashlight

Explanation:

In an experiment, the DEPENDENT OR RESPONDING VARIABLE is the variable that responds to changes being made to another variable called Independent variable. It is the variable that is measured by an experimenter.

In this question, an experiment was carried out to research the effect of sunlight on plastic decay. Three plastic flashlights were used for this experiment in which one was placed in a dark closet (control), and the others were placed in light at different times or intervals. However, the variable being measured or assessed is the decay of each flashlight. This means that "HOW MUCH DECAY HAPPENS IN EACH FLASHLIGHT" is the dependent variable.

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3 years ago
PLEASE ANSWER I HAVE 15 MINS. Which best compares the gravitational force and the strong force?
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I think it would be B hope not too late
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3 years ago
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