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Lapatulllka [165]
3 years ago
5

If I have 450 grams of Iron, how many moles of Iron do I have

Chemistry
1 answer:
Alborosie3 years ago
4 0

Answer:

The answer is A: 0.8 moles

Explanation:

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A student mixes chemicals A and B together and records the amount of time it takes for a color change to occur. The student repe
k0ka [10]

Answer:

It is mentioned that the student is mixing chemicals A and B and observes the time taken for the color to change. However, in the experiment, it is noticed that the student has repeated the procedure five times and each time he or she is modifying the concentration of chemical B. Thus, it is clear that the concentration of chemical B is the independent variable in the experiment. An independent variable is illustrated as the variable, which is controlled or modified in the experiment.

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3 years ago
Which physical method can be used for obtaining a sample of salt from a small beaker of salt water?
kipiarov [429]
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3 years ago
Which is a factor in determining the average atomic mass of an element?
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The solubility of calcium sulfate in water is 0.667 grams per liter. If a calcium sulfate solution had a concentration of 0.502
Lena [83]

Answer:

unsaturated

Explanation:

All solutions have a definite capacity of dissolving solute in it.

Unsaturated solutions are the solutions which contain less amount of solute than the maximum capacity of dissolving the solute. If more amount of solute is added in such a way a point is reached where addition of more solute cannot be dissolved. The solution is known as saturated solution.

Amount dissolved > Maximum solubility limit, the solution is saturated.

Amount dissolved < Maximum solubility limit, the solution is unsaturated.

If the amount of the salt exceeds the solubility limit, then the solution is saturated solution. If it is less than the limit given, then it is unsaturated solution.

The solubility = 0.667 grams per liter

Amount dissolved = 0.502 grams per liter

Since,

Amount dissolved < Maximum solubility limit, the solution is unsaturated.

8 0
3 years ago
PLEASE ASAP
marishachu [46]
Occurs due to the sharing of electrons between two non-metal atom- the the answer because it’s covalent meaning it’s a gas to gas only bond like H2O
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