3 years ago

1. When _ are added or removed from an atom, _ is formed

Chemistry

1 answer:

Kobotan [32]3 years ago

4 0

Answer:

1.) protons or electrons 2.) ion

Explanation:

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Gennadij [26K]

Answer:

b. k+

Explanation:

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3 years ago

Which of the following solutions is more concentrated? 0.50M KCl or 5.0% (w/v) KCl

HACTEHA [7]

.50 M KCl because 5% is the same as .05, which makes the .50M more concentrated.

6 0

3 years ago

Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it

lions [1.4K]

Answer: The equilibrium concentration of $COF_2$ is 0.332 M

Explanation:

We are given:

Initial concentration of $COF_2$ = 2.00 M

The given chemical equation follows:

$2COF_2(g)\rightleftharpoons CO_2(g)+CF_4(g)$

Initial: 2.00

At eqllm: 2.00-2x x x

The expression of $K_c$ for above equation follows:

$K_c=\frac{[CO_2][CF_4]}{[COF_2]^2}$

We are given:

$K_c=6.30$

Putting values in above expression, we get:

$6.30=\frac{x\times x}{(2.00-2x)^2}\\\\x=0.834,1.25$

Neglecting the value of x = 1.25 because equilibrium concentration of the reactant will becomes negative, which is not possible

So, equilibrium concentration of $COF_2=(2.00-2x)=[2.00-(2\times 0.834)]=0.332M$

Hence, the equilibrium concentration of $COF_2$ is 0.332 M

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3 years ago

Compare the function of a switch in an electric circuit to the function of a water faucet. How are they different?

Sever21 [200]

They both turn something on, and the way they are different is the way they turn it off

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3 years ago

How many molecules are in 3.2 mol of ammonia,NH3

EastWind [94]

Here we are talking about ammonia which is a molecule. Now 1 mole of ammonia also contains 6.022 * 10^23 molecules of ammonia. In one molecule of ammonia,we have 1 nitrogen atom and 3 hydrogen atom.

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3 years ago

1. When _____ are added or removed from an atom, _____ is formed

1. When _ are added or removed from an atom, _ is formed