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4 years ago

Which forms of heat transfer do insulated bottles prevent

1 answer:

8 0

I'd say conduction maybe I'm honestly not sure bc it has nothing to do with radiation so its between conduction and convection cause id guess they wouldn't want the heat to escape so it wouldn't be convection ???

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If you find that a substance turns litmus paper to blue and contains hydrogen ions it is most likely what

Darya [45]

An acid, possibly a strong one

4 0

3 years ago

What are the moles of gas are in a 30 liter scuba canister if the temperature of the canister is 300 K and the pressure is 200 a

Lady_Fox [76]

Answer:

$n = 243.605$

Explanation:

Given

$Pressure, P = 200\ atm$

$Temperature, T = 300k$

$Volume, V = 30L$

Required

Calculate the number of moles

We'll apply the following formula to solve this question

$n = \frac{pV}{RT}$

Where

$R = 0.0821 L\ atm/(mol\ K)$

The above equation is an illustration of the ideal gas law

Substitute values for p, V, R and T in:

$n = \frac{pV}{RT}$

$n = \frac{200 * 30}{0.0821 * 300}$

$n = \frac{6000}{24.63}$

$n = 243.605$

<em>Hence, there are 243.605 moles</em>

7 0

3 years ago

(please, I need some help)

olga55 [171]

c) the salt solubility decreases with temperature.

Salts usually dissolve in water at a given temperature. When water cannot dissolve anymore salt at that same temperature, it is known as a saturation point. With most substances the solubility increases with increase in temperature. Same is the case for a salt like potassium nitrate. With increase in temperature the ability of it to dissolve in water increases. And so with decrease in temperature, the solubility decreases.

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3 years ago

Help with chemistry please<br><br>Which chemical reaction involves the most oxygen atoms?

Ratling [72]

H2O is A chemical reaction of the most oxygen atoms

3 0

3 years ago

PLEASE HELP WITH ENVI SCI QUESTION

Vladimir79 [104]

Different types of acid deposition are

sulphur dioxide
nitroges oxides

3 0

4 years ago