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Sloan [31]
3 years ago
9

A balloon has a volume of 1.75L at a temperature of 298K. What will be the volume of the balloon if you take it out into the win

ter cold air at 258K? Assume pressure is constant.
Chemistry
1 answer:
lozanna [386]3 years ago
7 0

Answer:

1.52 L

Explanation:

P1V1T2=V2P2T1

V2=V1T2/T1

Fill in with given values then solve

We can check this by knowing that V and T at constant P have a proportional relationship. Hence, this is correct.

- Hope that helped! Please let me know if you need further explanation.

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A compound composed of a metal and a nonmetal is dissolved in water the solution is been exposed to an electric current attached
solniwko [45]

Answer:

The answer to your question is:  Light bulb turns on

Explanation:

When we combine a metal and a nonmetal the product is a binary salt. Binary salts dissociate is solution and are good conductors of electricity.

Solutions of salt in water are called electrolytes.

In the question, they are describing a binary salt that is dissolve in water to produce an electrolyte, that means a good conductor of electricity.

5 0
3 years ago
using the equation 2h2+o2-->2h2o if 192g of oxygen are produced how many grmas of hydrogen must react with it
Brilliant_brown [7]
Equation: 2H₂ + O₂ → 2H₂O

Now, Given mass of Oxygen = 192 g
Molar mass of Oxygen = 16 g/mol

No. of moles in Oxygen = 16/192 = 0.0833

Now, for every mole of Oxygen, 2 mole of Hydrogen will form, 
so, Number of moles of Hydrogen = 0.0833 * 2 = 0.167

Given mass = Number of Moles * Molar mass
Given mass = 0.167 * 2
m = 0.33 g

In short, Your Answer would be: 0.33 g

Hope this helps!
7 0
4 years ago
Read 2 more answers
You want to create a special device to keep coffe warm which type of electromatic wave use
Karolina [17]

<em> Infrared Waves</em> is the answer

Let me know if this helps..

3 0
3 years ago
Read 2 more answers
HELP ASAP!! DON'T COPY FROM G00GLE
allsm [11]

Parts of respiratory system:

Nose and Nasal Cavity, mouth, Pharynx, Larynx, Trachea, Bronchi and Bronchioles, Lungs and Muscles of Respiration.

Respiratory system function:

Your respiratory system is the network of organs and tissues that help you breathe. This system helps your body absorb oxygen from the air so your organs can work. It also cleans waste gases, such as carbon dioxide, from your blood.

Alveoli:

Alveoli are tiny sacs of air in your lungs that take up the oxygen you breathe and keep it going. The alveoli ventilate, diffuse and peruse in your lungs.

3 0
3 years ago
Discuss whether two products are required for a chemical reaction. (NEED HELP ASAP)
Alex787 [66]

Answer:

Yes.

Explanation:

"These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products."

There is a beginning product, and a reactant is needed in order for something to happen.

For example, according to Newton, something cannot happen until an exterior force comes and stops/pushes it.

Sorry if this is incorrect, I am just 4th grade :(

6 0
3 years ago
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