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2 years ago

60-POINTS,5-STAR RATING, A THANKS AND MARKED AS Brainiest.

Chemistry

1 answer:

yaroslaw [1]2 years ago

5 0

Answer:

Independent variable: Colour of the container

Dependent variables: The water amount and the room temperature

3 Constants: Amount of water, location of the containers and the container size.

Hypothesis: I think that the black container will heat up the water the fastest, as the colour black absorbs heat.

Hope it helps! :)

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CONVERT 2 MOL OF OXYGEN TO ATOMS. PLeasee...?

kiruha [24]

Answer:

1.2044 × 10^24 oxygen atoms

Explanation:

To convert from moles to atoms, simply multiply the number of moles by Avogadro's number, 6.022 × 10^23

2 × 6.022 × 10^23

=1.2044 × 10^24

4 0

2 years ago

A chemistry student needs of acetic acid for an experiment. He has available of a w/w solution of acetic acid in acetone. Calcul

Volgvan

Answer:

49.4 g Solution

Explanation:

There is some info missing. I think this is the original question.

A chemistry student needs 20.0g of acetic acid for an experiment. He has 400.g available of a 40.5 % w/w solution of acetic acid in acetone.

Calculate the mass of solution the student should use. If there's not enough solution, press the "No solution" button. Round your answer to 3 significant digits.

We have 400 g of solution and there are 40.5 g of solute (acetic acid) per 100 grams of solution. We can use this info to find the mass of acetic acid in the solution.

$400gSolution \times \frac{40.5gSolute}{100gSolution} = 162 g Solute$

Since we only need 20.0 g of acetic acid, there is enough of it in the solution. The mass of solution that contains 20.0 g of solute is:

$20.0gSolute \times \frac{100gSolution}{40.5gSolute} = 49.4g Solution$

4 0

2 years ago

2NaCl + F2 yields 2NaF + Cl2

bearhunter [10]

Study your experiment setup. In 30 minutes, how will the air temperature in the bottles compare? What do you predict will happen to the ice in each bottle?

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2 years ago

What determines the volume of a gas?

Fittoniya [83]

Gases, unlike solids and liquids, have neither fixed volume nor shape. They are molded entirely by the container in which they are held.

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2 years ago

Read 2 more answers

What sample has particles with the lowest average kinetic energy

makvit [3.9K]

The sample with the lowest AVERAGE kinetic energy is
the coolest one.

The sample with the lowest TOTAL kinetic energy depends on
not only the temperature of the samples, but also on their size,
since each molecule in the sample has kinetic energy.

5 0

2 years ago