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mezya [45]
3 years ago
12

A student has a rectangular block. It is 3.00 cm wide, 400.0 mm tall, and 0.25 m long. It has a mass of 600.0 g. What is the den

sity (g/mL) of the rectangular block? (1cm^3 = 1 mL) ​
Chemistry
1 answer:
Aneli [31]3 years ago
4 0

Explanation:

deg dragster Zbigniew

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bezimeni [28]
Chlorine is element number 17, so the electron configuration must be:

2,8,7
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How does the temperature of the water affect<br> the movement of the food coloring?<br><br> pls help
erica [24]

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In cold water, the food coloring diffuses (spreads out) through the water slowly. The hot water causes the food coloring to diffuse faster.

Explanation:

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PLEASE HELP ASAP!
egoroff_w [7]

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Lithium fluoride i think but I am not really sure

But it should be Lithium fluoride

Explanation: that's because neighter boron nor nitrogen contains water

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3 years ago
Which of the following best describe a valence electron?
amm1812

Answer:

electrons on the the outer most shell of an element

8 0
3 years ago
Compare the system (still at 50 °C) with a volume of 1.0 L and with 3.0 L. What is the total amount of gas (mol) present in the
SVEN [57.7K]

The total amount of gas present in the container of 1 L is 0.0446 moles and in container of 3 L is 0.1334 moles.

Explanation:

It is known that 1 mole of any gaseous element contains 22.4 litres of that gas molecules. So in order to determine the total amount of gas present in 1 L and 3 L, we can divide the given volume with the reciprocal of 22.4 litre to determine the moles of gas at 1 L and 3 L respectively.

So for 1 L

No.of moles in 1 L = \frac{1}{22.4}*1

So no. of moles in 1 L = 0.0446 moles of that gas is present in 1 L volume.

Similarly, total amount of gas present in 3 L is

No. of moles present in 3 L = \frac{1}{22.4} * 3 = 0.1334 moles

So, the total amount of gas present in 1 L is 0.0446 moles and in 3 L is 0.1334 moles. Thus, it can be stated that the number of moles increases with increase in the volume or on expansion of gas molecules.

3 0
3 years ago
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