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avanturin [10]
3 years ago
14

HELP Me Please I will give 20 points

Chemistry
2 answers:
lisabon 2012 [21]3 years ago
5 0

Answer:

1c

2a

3b

Explanation:

uysha [10]3 years ago
5 0

Answer:

1 to C

2 to A

3 to B

Explanation:

I hope this helps

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2. How much energy is needed to heat 12 g of water from 55 to 122<br>​
nika2105 [10]

Answer:

5.4j

Explanation:

5 0
3 years ago
True or false questions?
egoroff_w [7]

Answer:

1. False 2.True3.True? Unsure

Explanation:

8 0
3 years ago
An atomic radius is about 1.00*10^2 pm. Convert the radius to inches. (1 pm=10^-12m)
natka813 [3]

Answer:

3.937 x 10⁻⁸ inches

Explanation:

Data Given:

Atomic radium in pm (picometer) = 1.00 x 10² pm

Atomic radium in inches = ?

1 pm = 10⁻¹² m

Solution:

First convert picometer to meter

As we Know

  1 pm = 10⁻¹² m

then

  1.00 x 10² pm = X meter

Do cross multiplication

        X meter = (1.00 x 10² pm)(10⁻¹² m) / 1 pm

       X meter = 1 x 10⁻⁹ m

So, 1.00 x 10² pm equal to 1 x 10⁻⁹ m

Now convert meter to inches

As

         1 m = 39.37 inches

         1 x 10⁻⁹ m = X inches

Do cross multiplication

        X inches = (39.3701 inches)(1 x 10⁻⁹ m ) / 1 m

        X inches = 3.937 x 10⁻⁸ inches

So,

1.00 x 10² pm = 3.937 x 10⁻⁸ inches

so the radius is 3.937 x 10⁻⁸ inches

4 0
3 years ago
At very high pressures, gases become_______ and will eventually________
Afina-wow [57]

Answer:

more dense;change to a liquid to a solid

Explanation:

At high pressure , the gases volume is reduced ,resulting in an increased density.

8 0
3 years ago
What volume of a substance will have a mass exactly 750 g if the specific gravity of the substance is 12.2
Ket [755]

The volume of the substance is 61.4 litres.

Explanation:

Specific density is the ratio of density of a substance at a given temperature with the density of reference substance.

Data given:

mass = 750 grams

specific gravity = 12.2

volume=?

The formula to be used:

Specific gravity = \frac{density of the object}{density of the reference substance}

suppose the other substance is water so its density is 1g/ml at 4 degrees

Putting the values to the equation:

density of the object = 1 x12.2

density of the substance = 12.2

Now using the formula:

density = \frac{mass}{volume}

putting the values in the equation:

volume = \frac{750}{12.2}

            = 61.4ml is the volume of the substance.

3 0
3 years ago
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