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3 years ago

Which particle has no mass and no charge? O alpha O beta gamma O neutron

Chemistry

1 answer:

Olegator [25]3 years ago

6 0

Answer:

Neutrons

Explanation:

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What happens to the number of valence electrons as you move from element 1 to element 18 on the periodic table?

BARSIC [14]

Answer:

Explanation:

the group number is=valence electrons. element 1 is in group 1 element 18 is in group 8. 1<8

6 0

3 years ago

Read 2 more answers

Given the following information, what is the concentration of H2O(g) at equilibrium? [H2S](eq) = 0.671 M [O2](eq) = 0.587 M Kc =

MAVERICK [17]

Answer: The equilibrium concentration of water is 0.597 M

Explanation:

Equilibrium constant in terms of concentration is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as $K_{c}$

For a general chemical reaction:

$aA+bB\rightleftharpoons cC+dD$

The expression for $K_{eq}$ is written as:

$K_{c}=\frac{[C]^c[D]^d}{[A]^a[B]^b}$

The concentration of pure solids and pure liquids are taken as 1 in the expression.

For the given chemical reaction:

$2H_2S(g)+O_2(g)\rightleftharpoons 2S(s)+2H_2O(g)$

The expression of $K_c$ for above equation is:

$K_c=\frac{[H_2O]^2}{[H_2S]^2\times [O_2]}$

We are given:

$[H_2S]_{eq}=0.671M$

$[O_2]_{eq}=0.587M$

$K_c=1.35$

Putting values in above expression, we get:

$1.35=\frac{[H_2O]^2}{(0.671)^2\times 0.587}$

$[H_2O]=\sqrt{(1.35\times 0.671\times 0.671\times 0.587)}=0.597M$

Hence, the equilibrium concentration of water is 0.597 M

8 0

3 years ago

If an electron fell to a lower orbit or energy level, energy would be

arsen [322]

It would emit energy in most of the cases in form of light

5 0

3 years ago

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Balance the following reaction. A.) 4 B.) 2 C.) 5 D.) blank E.) 3

slega [8]

Answer:

C.5

Hope this helps

7 0

2 years ago

Which metal will more easily lose an electron sodium or potassium?

sergey [27]

The metal that would more easily lose an electron would be potassium. It is more reactive than sodium. Also, looking on the periodic table, from top to bottom for groups 1 and 2, reactivity increases. So, it should be potassium. Hope this answers the question. Have a nice day.

7 0

3 years ago