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yaroslaw [1]
3 years ago
6

What is a good sentence for (pure) substance

Chemistry
1 answer:
kenny6666 [7]3 years ago
5 0
Atoms, together with the idea that all the molecules in a pure substance<span> are alike.</span>
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Bromine is is reddish-brown liquid that boils at 59 degrees. bromine is highly reactive with many metals, for example, it reacts
katrin2010 [14]
A physical property of an element is a property of an element that can observed or measured without changing the chemical nature of the element.

A chemical property of an element is a property of an element that can only be observed or measure when the chemical property of the element is altered or changed.

Based on this;
The boiling point of bromine is a physical property of bromine.
The high reactivity of bromine with many elements is a chemical property of bromine.
4 0
3 years ago
You are measuring how many liters of oxygen are in a container. which of the following are you measuring?
svetoff [14.1K]

Answer:

d.

Explanation:

liters is a measure of volume, it is an SI accepted metric system unit

8 0
3 years ago
The volume of a gas at 2.0 atm is 3.0 L. What is the volume of the gas at 1.5 atm at the same temperature?
Andru [333]

<u>Answer:</u> The final volume of the gas comes out to be 4 L.

<u>Explanation:</u>

To calculate the volume with changing pressure, we use the equation given by Boyle's law.

This law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.

Mathematically,

P\propto \frac{1}{V}      (At constant temperature and number of moles)

The equation given by this law is:

P_1V_1=P_2V_2

where,

P_1\text{ and }V_1 are initial pressure and volume.

P_2\text{ and }V_2 are final pressure and volume.

We are given:

P_1=2.0atm\\V_1=3L\\P_2=1.5atm\\V_2=?L

Putting values in above equation, we get:

2atm\times 3L=1.5atm\times V_2\\\\V_2=4L

Hence, the final volume of the gas will be 4 L.

4 0
4 years ago
Read 2 more answers
State the law of conservation of energy.
LUCKY_DIMON [66]

Answer:

A) The law of conservation of energy states that energy can neither be created nor destroyed.

and

B) Energy can be transferred from one object to another, and it can assume different forms.

6 0
3 years ago
At standard temperature and pressure, a 0.50 mole sample of H2 gas and a separate 1.0 mol sample of O2 gas have the same a. Aver
Harman [31]

Answer:

um i think 20

Explanation: because 20

8 0
3 years ago
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