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3 years ago

Help i dont wanna read

Chemistry

1 answer:

nordsb [41]3 years ago

6 0

Answer:

I do not really no sorry

Explanation:

:))

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K3PO4(aq)+MgCl2(aq)⟶

Wittaler [7]

Answer:

6KCl(aq) + Mg3(PO4)2(s) ... balanced equation

Explanation:

7 0

3 years ago

the value of kc for the following reaction is 0.630 at 409 K N2O4(g) --> 2NO2(g) if a reaction vessel at that temperature int

stealth61 [152]

Answer: The concentration of nitrogen dioxide at equilibrium is 0.063 M

Explanation:

We are given:

Initial concentration of nitrogen dioxide = 0.0250 M

Initial concentration of dinitrogen tetraoxide = 0.0250 M

For the given chemical equation:

$N_2O_4(g)\rightleftharpoons 2NO_2(g)$

Initial: 0.025 0.025

At eqllm: 0.025-x 0.025+2x

The expression of $K_c$ for above equation follows:

$K_c=\frac{[NO_2]^2}{[N_2O_4]}$

We are given:

$K_c=0.630$

Putting values in above expression, we get:

$0.630=\frac{(0.025+2x)^2}{(0.025-x)}\\\\x=-0.2013,0.019$

Neglecting the negative value of 'x', because concentration cannot be negative

So, equilibrium concentration of nitrogen dioxide = (0.025 + 2x) = [0.025 + 2(0.019)] = 0.063 M

Hence, the concentration of nitrogen dioxide at equilibrium is 0.063 M

6 0

3 years ago

H-h+cl+cl____2h-cl... calculate the energy needed to break the bond

Elenna [48]

The energy required to break one mole of Cl - Cl bond is 242 kJ/mol

4 0

4 years ago

What are three reasons that using renewable energy is important.

wariber [46]

Answer:

1. they reduce green house gases

2. they can last a long time and come back pretty much every year and some never run out

3. we have unlimited supply of most if not all renewable resources

Explanation:

hope this helps!

5 0

3 years ago

Convert the following Celsius temperatures to the Kelvin scales

kotykmax [81]

What are the temperatures

5 0

3 years ago