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AlekseyPX
3 years ago
14

What is 2.15•(6.022•10^23)

Chemistry
1 answer:
sp2606 [1]3 years ago
6 0

Answer:

The answer is 1.29473 x 10^24

Explanation:

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If a black ball is denser than a white ball of the same size, what does the black ball have??
yKpoI14uk [10]

Answer: The black ball will have more mass than the white ball.

Explanation: Density of a substance is defined as the ratio of mass and volume occupied by the substance.

Mathematically,

Density=\frac{Mass}{Volume}

We are given that the two balls are of same size, which means that the volume of both the balls are same. We are also given that the black ball is more dense than the white ball, which means that the black ball will have more mass.

As, Density\propto Mass

7 0
3 years ago
The nucleus’ pull on its electrons, taking into account any attractions weakened by shielding is called the:
Sever21 [200]

Answer:

It's called the shielding effect

Explanation:

It describes the decrease in attraction between an electron and the nucleus in any atom with more than one electron shell. (I hope this helps)

8 0
2 years ago
A gas at 29.4 kPa is cooled from a temperature of 75°C to a temperature of 25°C at constant volume. What is the new pressure of
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<span>To solve this we assume that the gas inside the balloon is an ideal </span>gas. Then, we can use the ideal gas equation which is expressed as PV = nRT. At a constant volume pressure and number of moles of the gas the ratio of T and P is equal to some constant. At another set of condition, the constant is still the same. Calculations are as follows:

 

T1/P1 = T2/P2

P2 = T2 x P1 / T1

P2 = 25 x 29.4 / 75

P2 = 9.8 kPa

7 0
3 years ago
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When one atom contributes both bonding electrons in a single covalent bond, the bond is called a(n) ____?
andre [41]
Coordinate covalent bond 
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3 years ago
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Which are balanced plus if they aren’t please correct them
Veronika [31]

b,f,h are already balanced

7 0
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