4 years ago

Is hydrogen a solid liquid or gas?

Chemistry

1 answer:

Anestetic [448]4 years ago

8 0

It can be in either state.....

You might be interested in

Celina has a water sample that’s contaminated with salt and microorganisms. Which method should she use to purify the water?

Alik [6]

B) filtration
(hope this helps) ~A

3 0

3 years ago

Read 2 more answers

Read the chemical equation. N2 + 3H2 → 2NH3 Using the volume ratio, determine how many liters of NH3 is produced if 1.2 liters o

zmey [24]

Answer : The volume of $NH_3$ produced will be, 0.8 liters.

Explanation : Given,

Volume of $H_2$ = 1.2 L

At STP, 1 mole of substance contains 22.4 L volume of substance.

The given balanced chemical reaction is:

$N_2+3H_2\rightarrow 2NH_3$

From the balanced chemical reaction we conclude that,

As, $3\times 22.4L$ volume of $H_2$ produced $2\times 22.4L$ volume of $NH_3$

So, $1.2L$ volume of $H_2$ produced $\frac{2\times 22.4L}{3\times 22.4L}\times 1.2L=0.8L$ volume of $NH_3$

Therefore, the volume of $NH_3$ produced will be, 0.8 liters.

5 0

3 years ago

Read 2 more answers

Given that the Ksp value for Ca3(PO4)2 is 8.6×10−19, if the concentration of Ca2+ in solution is 4.9×10−5 M, the concentration o

nasty-shy [4]

Answer:

.0027 M

Explanation:

We must calculate the threshold concentration of PO3−4 using Ksp and the given concentration of Ca2+:

Ca3(PO4)2(s)⇌3Ca2+(aq)+2PO3−4(aq)

Ksp=8.6×10−19=[Ca2+]3[PO3−4]2=(4.9×10−5M)3[PO3−4]2

[PO3−4]=0.0027 M

5 0

3 years ago

At a given temperature, the elementary reaction A − ⇀ ↽ − B , in the forward direction, is first order in A with a rate constant

ZanzabumX [31]

Answer:

0.24

Explanation:

We are given that

Rate constant for A= $k=0.0180/s$

Rate constant for B,k'=0.0750/s

We have to find the value of equilibrium constant for the reaction

$A\rightleftharpoons B$

Equilibrium constant, for k= $\frac{k}{k'}$

Using the formula

$k=\frac{0.0180}{0.0750}=0.24$

Hence, the value of the equilibrium constant for the reaction

$A\rightleftharpoons B$ at this temperature=0.24

4 0

3 years ago

Which diagram is correct

elixir [45]

Answer:

The answer to the question is option <u>D</u>

6 0

2 years ago