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Elodia [21]
3 years ago
15

How do you differentiate between gas and a vapour ?

Chemistry
1 answer:
kolbaska11 [484]3 years ago
6 0
Gas is a substance that will not phase change.

And vapor is a substance above it's boiling point temperature.
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Which of the following is true for an atom which has 29 protons, 34 neutrons and 29 electrons?
xeze [42]
The correct description that holds true for the above question would be B. Atomic number - 29 and Mass Number - 63.
6 0
3 years ago
According to the National Institute of Health, ventricular tachycardia is a fast, regular beating of the ventricles that may las
jarptica [38.1K]

Answer:

1 makes the most sense

Explanation:

There is no way blood pressure will be decreased especially if your ventricles are erratically contracting for a long period of time. So 3 and 4 are out. And you said number 2 is wrong so my finally answer is 1.

3 0
3 years ago
Write the steps to separate the <br>Water from salt solution​
zhuklara [117]

Answer:

you can use FILTRATION

STEP :-

1) put a hot water into breaker .

2) stir the solution until the sand dissolve

3) filtrate the solution

4) take the filtrate and evaporate under the sun

then you can get the water and salt too

Hope this helps :)

8 0
3 years ago
Read 2 more answers
Use the drop-down menus to complete each statement.
slavikrds [6]
Question 1: A material that causes a wave to bounce off it is called the. Answer : Reflection

Question 2: A material that takes in a wave when the wave hits is called the. Answer: Absorber
8 0
2 years ago
Use the definition of molarity to calculate the concentration of 12.34 g of CaSO4 completely dissolved in water, with a solution
Ede4ka [16]

Answer:

[CaSO₄] = 36.26×10⁻² mol/L

Explanation:

Molarity (M) → mol/L → moles of solute in 1L of solution

Let's convert the volume from mL to L

250 mL . 1L/1000 mL = 0.250L

We need to determine the moles of solute. (mass / molar mass)

12.34 g / 136.13 g/mol = 0.0906 mol

M → 0.0906 mol / 0.250L = 36.26×10⁻² mol/L

8 0
3 years ago
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