3 years ago

Dry unpolluted air is usually considered to contain about :-

Chemistry

1 answer:

wariber [46]3 years ago

6 0

Whats the question?!?! You never put the question.

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victus00 [196]

Answer:

-Acetone is a covalent compound, while sodium chloride is an ionic compound

-covalent compounds have weak attractions between molecules, resulting in low melting points

Explanation:

3 0

3 years ago

Read 2 more answers

Consider the following reaction where Kc = 1.80×10-2 at 698 K:2 HI (g) H2 (g) + I2 (g)A reaction mixture was found to contain 0.

Iteru [2.4K]

Answer:

Answer for the given statements: (1) T , (2) F , (3) T , (4) F , (5) F

Explanation:

At the given interval, concentration of HI = $\frac{0.304}{1}M=0.304M$

Concentration of $H_{2}$ = $\frac{5.07\times 10^{-2}}{1}M=5.07\times 10^{-2}M$

Concentration of $I_{2}$ = $\frac{4.57\times 10^{-2}}{1}M=4.57\times 10^{-2}M$

Reaction quotient, $Q_{c}$ , for this reaction = $\frac{[H_{2}][I_{2}]}{[HI]^{2}}$

species inside third bracket represents concentrations at the given interval.

So, $Q_{c}=\frac{(5.07\times 10^{-2})\times (4.57\times 10^{-2})}{(0.304)^{2}}=2.51\times 10^{-2}$

So, the reaction is not at equilibrium.

As $Q_{c}> K_{c}$ therefore reaction must run in reverse direction to reduce $Q_{c}$ and make it equal to $K_{c}$ . That means HI(g) must be produced and $H_{2}$ must be consumed.

3 0

3 years ago

Following this list of common polyatomic ions what would be the charge for aluminum nitrate?

vesna_86 [32]

Answer:

Nitrate NO3

here's your answer, hope it helps you

3 0

3 years ago

Identify these reactions

olga2289 [7]

Answer:

NaNO" (and any subsequent words) was ignored because we limit queries to 32 words.

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3 years ago

Household bleach is an aqueous solution which has a pH of about 11 and feels slippery to the

Helen [10]

It’s b or d hope this helps

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3 years ago