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katovenus [111]
3 years ago
11

What happens to the density of a box full of leaves if you crush up all the leaves and place them in another box

Chemistry
1 answer:
zavuch27 [327]3 years ago
4 0

Answer:

B the density stays the same

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Scientists classify organisms into three domains and six kingdoms. In which
SIZIF [17.4K]

Answer:

c is correct option

according to the question.

4 0
3 years ago
Help plz i dont get this formula
Katen [24]

Answer:

C

Explanation:

Hope it helps :)

7 0
3 years ago
Read 2 more answers
How many moles of Kr are contained in 398 mg of Kr?
bagirrra123 [75]
The mass of 1 mole of an element is its atomic weight on the Periodic Table in grams.

1g = 1000mg

The mass of 1 mole of Kr = 83.80g Kr

Convert mg Kr to g Kr.

398mg Kr x (1g/1000mg) = 0.398g Kr

Convert g Kr to mol Kr.

0.398g Kr x (1mol Kr/83.80g Kr) = 4.75x10-3mol Kr
8 0
3 years ago
2. How does the use of an organized binder affect the amount of homework a student turns in?
Artist 52 [7]

Answer:

This question is asking to state the hypothesis for the given scientific question. A possible hypothesis will be:

IF an organized binder is used, THEN students will turn in an increased amount of homework/more homework.

Explanation:

A hypothesis in an experiment is a testable explanation to a problem. It is a predictive statement given in order to provide a possible solution to an observed problem or scientific question. A hypothesis must be subject to testing via experimentation in order to determine whether to accept or reject it. It must not be true, instead it is just a possible answer to a problem. Hypothesis is usually written in the OF, THEN format.

In this question, a scientific question states: How does the use of an organized binder affect the amount of homework a student turns in? Based on the explanation above, a hypothesis to this question will be:

IF an organized binder is used, THEN students will turn in more homework.

8 0
3 years ago
A gas balloon has a volume of 106.0 liters when the temperature is 25.0 °C and the pressure is 740.0 mm Hg. What will its volume
ipn [44]

Answer : The final volume of gas will be, 103.3 L

Explanation :

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1 = initial pressure of gas = 740.0 mmHg  = 98.4 kPa

Conversion used : (1 mmHg = 0.133 kPa)

P_2 = final pressure of gas = 99.3 kPa

V_1 = initial volume of gas = 106.0 L

V_2 = final volume of gas = ?

T_1 = initial temperature of gas = 25.0^oC=273+25.0=298K

T_2 = final temperature of gas = 20.0^oC=273+20.0=293K

Now put all the given values in the above equation, we get:

\frac{98.4kPa\times 106.0L}{298K}=\frac{99.3kPa\times V_2}{293K}

V_2=103.3L

Therefore, the final volume of gas will be, 103.3 L

8 0
4 years ago
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