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3 years ago

An ionic bond always forms between _ ion with a positive charge and _ ion with a negative charge.

Chemistry

1 answer:

seropon [69]3 years ago

5 0

Answer:

Cation and anion

Explanation:

Positive ion is known as cation and negative ion is known as anion

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3 years ago

For wach of the following cases, state whether the density of the object increases, decreases, or remains the same:

Ahat [919]

Answer:

a) increases.

b) remains the same.

c) decreases. the hydrogen molecules constrict or shrink from actual size!

Explanation:

Since ,

Density is given as mass divided by the volume .

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( b ) When the lead is taken to high mountain , its density remains the same , as density is independent of higher pressure , as going to mountain will increase the pressure .

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3 years ago

Initially, [NH3(g)] = [O2(g)] = 3.60 M; at equilibrium [N2O4(g)] = 0.60 M. Calculate the equilibrium concentration for NH3.

natima [27]

The question is incomplete, here is the complete question:

Consider the reaction $4NH_3(g)+7O_2(g)\rightarrow 2N_2O_4(g)+6H_2O(g)$

Initially, $[NH_3(g)]=[O_2(g)]$ = 3.60 M; at equilibrium $[N_2O_4(g)]=0.60M$ . Calculate the equilibrium concentration for $NH_3$

<u>Answer:</u> The equilibrium concentration of ammonia is 2.8 M

<u>Explanation:</u>

We are given:

Initial concentration of $[NH_3(g)]$ = 3.60 M

Initial concentration of $[O_2(g)]$ = 3.60 M

For the given chemical equation:

$4NH_3(g)+7O_2(g)\rightarrow 2N_2O_4(g)+6H_2O(g)$

Initial: 3.60 3.60

At eqllm: 3.60-4x 3.60-7x 2x 6x

We are given:

Equilibrium concentration of $[N_2O_4(g)]$ = 0.60 M

Evaluating the value of 'x'

$\Rightarrow 2x=0.60\\\\\Rightarrow x=\frac{0.60}{2}=0.2$

So, equilibrium concentration of $NH_3=(3.60-4x)=(3.60-(4\times 0.2))=2.8M$

Hence, the equilibrium concentration of ammonia is 2.8 M

6 0

3 years ago

An ionic bond always forms between _____ ion with a positive charge and _____ ion with a negative charge.

An ionic bond always forms between _ ion with a positive charge and _ ion with a negative charge.