3 years ago

Why are Alkali Metals soft but still extremely reactive?

1 answer:

8 0

Alkali metals are very reactive. They only have one electron in their outer shell. Because of this they are ready for ionic bonding with other elements to lose that one electron.

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According to the law of conservation of mass, how does the mass of the products in a chemical reaction compare to the mass of th

fgiga [73]

D. The masses are always equal.

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4 years ago

At 500°C the equilibrium constant, Kp, is 4.00 × 10–4 for the equilibrium: 2HCN(g) H2(g) + C2N2(g) What is Kp for the following

Andrews [41]

<u>Answer:</u> The value of $K_p$ for the equation is $2.5\times 10^3$

<u>Explanation:</u>

The given chemical reaction is:

$2HCN(g)\rightleftharpoons H_2(g)+C_2N_2(g);K_1$

The chemical equation for which the equilibrium constant is to be calculated follows:

$H_2(g)+C_2N_2(g)\rightleftharpoons 2HCN(g);K_p$

As, the equation is the result of the reverse of given reaction. So, the equilibrium constant for the equation will be the inverse of equilibrium constant for the given reaction.

The value of equilibrium constant for the equation is:

$K_p=\frac{1}{K_1}$

We are given:

$K_1=4.00\times 10^{-4}$

Putting values in above equation, we get:

$K_p=\frac{1}{4.00\times 10^{-4}}=2.5\times 10^3$

Hence, the value of $K_p$ for the equation is $2.5\times 10^3$

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4 years ago

25 POINTS!

Triss [41]

Pebble in a sling shot!! And I believe the boulder falling !

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3 years ago

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How many grams of oxygen are in a half a cup of water

USPshnik [31]

Answer: 2.78 moles of molecular oxygen will occupy 62.22 liters.

Explanation:

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3 years ago

Can elements be broken down further into other pure substances?

grigory [225]

No they can't because the definition of an element is, something that exists as a single atom
For example, oxygen is an element and can't be broken down anymore however, it can be combined with hydrogen to make water

8 0

4 years ago