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Gnom [1K]
3 years ago
10

All matter on earth contains energy

Chemistry
1 answer:
Dafna11 [192]3 years ago
6 0
Yes; every object has energy and you cannot create or destroy energy but you can transfer it. 
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12. If the total pressure exerted by 3 gases is 45 atm and each individual gas has the
Bumek [7]

Answer:

Partial pressure for each of the three gases, in the mixture is 15 atm

Explanation:

Remember that the total pressure of a mixture, is the sum of partial pressures from the gases contained in the mixture.

Our total pressure = 45 atm

The 3 gases have the same pressure, so we can propose this equation:

3x = 45 atm

where x is the partial pressure for each of the three gases.

x = 45/3 → 15 atm

3 0
4 years ago
You throw a 2-kg rock with a force of 10 N. What is the acceleration of the rock?
Tema [17]

Answer:

<h2>5 m/s²</h2>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

f is the force

m is the mass

From the question we have

a =  \frac{10}{2}  \\

We have the final answer as

<h3>5 m/s²</h3>

Hope this helps you

6 0
3 years ago
When sugar is dissolved in hot tea, physical changes occur. Write two physical properties of sugar
kompoz [17]

Answer:

When you mix the sugar into the tea and stir, it dissolves so you can't see it. Also when you stir the sugar into the tea the taste changes and it turns sweeter.

6 0
3 years ago
Which of the following best explains why the oceanic crust is youngest at the oceanic ridges?
murzikaleks [220]

Answer:

the different depths of the ocean

5 0
3 years ago
Read 2 more answers
Which statements below describe the law of conservation of mass? *
topjm [15]

Answer:

Mass cannot be created or destroyed

Explanation:

The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

8 0
3 years ago
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