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Anastaziya [24]
3 years ago
13

A student conducts an experiment to determine how the addition of salt to water affects the density of the water. The student fi

lls 3 beakers with equal amounts of water. He then adds 1 cup of salt to the first beaker, 2 cups of salt to the second beaker and no salt to the third beaker. What is the dependent variable in the student's investigation?
1)The amount of salt in the water.

2)The temperature of the water.

3)The density of the water.

4)The ph of the water.
Chemistry
2 answers:
Alina [70]3 years ago
8 0
3) The density of the water depends on the amount of salt on the water, therefore it is the
dependent variable
raketka [301]3 years ago
3 0

Answer:

vyb tftrdf5rdv

Explanation:

ghyttg

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What is the volume of 6.50g of gold if the density of gold is 19.3g/ml?
Jet001 [13]

Answer:

0.33 ml

Explanation:

Formula for density: p = m/V (where p is <em>density</em>, m is <em>mass</em> and V is <em>volume</em>)

So, by applying the above formula:

19.3 =  \frac{6.5}{v}

v = 0.33 \: ml

7 0
3 years ago
A salt sample is placed into some water and nearly all of it dissolves without stirring or heating. the resulting solution is
raketka [301]
The resulting solution is unsaturated.

An unsaturated solution is one in which the amount of solute can be increased. We know that the solution is unsaturated because there is no salt at the bottom of the solution and no means were required to increase the salt's solubility such as increasing temperature or stirring. Once the solution becomes saturated, additional salt will only deposit at the bottom unless changes in conditions are made. 
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How many bottles are needed for a 45 day supply of pills
Wewaii [24]

Answer:

I think the answer is 4 bottles

Explanation:

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4 0
3 years ago
HELPP!!!!!!!!!!
muminat

1. Mg + CuSO4 —> MgSO4 + Cu

=> Single displacement reaction

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=> Acid - base reaction

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=> Double displacement reaction

8 0
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drek231 [11]
The answer is (3) CH3COOH. CH3COOH is a acid. It can ionized in water. So the solution can conduct an electric current. And the other three can not be ionized in water.
4 0
3 years ago
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