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SVEN [57.7K]
3 years ago
13

I well give 300 points for this question

Chemistry
2 answers:
polet [3.4K]3 years ago
7 0
If the temperature of a fish population increases then, the population of fish will increase because the fish like warmer areas to breed and lay eggs.

I'm not sure if this is correct. But always use IF THEN and BECAUSE when writing a hypothesis 
iogann1982 [59]3 years ago
6 0
Okay well the temperature will only effect some fish since most are smart enough to know to seek deeper water in the cold months. but this also means we humans and many cultures that thrive on them would have to find new ways to catch fish 100's of feet below the waters surface. the way to test this would be to go out and throw a net in different areas of a lake during the summer months when it's hot then in the winter months go back to the same exact areas and throw again and compare data. the hypothesis would be that duringing colder months fish will not be in the shallower waters that are above the goe line in cold weather.hope this helped.<span />
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Which of the following statements is true? Atoms of isotopes of an element have different numbers of electrons. Atoms of isotope
serious [3.7K]

Answer:

atoms of isotopes of an element have different numbers of neutrons.

Explanation:

isotopes have the same number of protons, but different numbers of neutrons.

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3 years ago
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Why are alcohols classified as organic compounds?
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Rubbing Alcohols are chemical compounds because rubbing alcohol itself is a strecture made up of many different chemicals combinding in a compound that make,  C3H8O
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3 years ago
3) Calculate the percent by mass of 3.55 g NaCl dissolved in 88 g water.
kotykmax [81]

Answer:

The percent by mass of 3.55 g NaCl dissolved in 88 g water is 3.88%

Explanation:

When a solute dissolves in a solvent, the mass of the resulting solution is a sum of the mass of the solute and the solvent.

A percentage is a way of expressing a quantity as a fraction of 100. In this case, the percentage by mass of a solution is the number of grams of solute per 100 grams of solution and can be represented mathematically as:

Percent by mass=\frac{mass of solute}{mass of solution} *100

In this way it allows to precisely establish the concentration of solutions and express them in terms of percentages.

In this case:

  • mass of solute: 3.55 g
  • mass of solution: 3.55 g + 88 g= 91.55 g

Replacing:

Percentbymass=\frac{3.55}{91.55}*100

Percent by mass= 3.88%

<u><em>The percent by mass of 3.55 g NaCl dissolved in 88 g water is 3.88%</em></u>

5 0
3 years ago
Convert 75 minutes to days
Lostsunrise [7]

Answer:

75 minutes=0.0520833 days

Explanation:

4 0
3 years ago
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1. If you have 5g of pennies how many dozen pennies do you have?
likoan [24]

Answer:

15.69 dozen

Explanation:

Mass of penny = 5 g

Dozens of penny =..?

Next, we shall convert 5 g to gross. This can be obtained as follow:

3824 g = 1000 gross

Therefore,

5 g = 5 g × 1000 gross / 3824 g

5 g = 1.3075 gross

Thus, 5 g is equivalent to 1.3075 gross.

Finally, we convert 1.3075 gross to dozen. This can be obtained as follow:

1 gross = 12 dozen

Therefore,

1.3075 gross = 1.3075 gross × 12 dozen / 1 gross

1.3075 gross = 15.69 dozen

Thus, 5 g of penny is equivalent to 15.69 dozen

4 0
3 years ago
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