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navik [9.2K]
3 years ago
11

The three most common states of matter on Earth are solids,blank

Chemistry
1 answer:
Nostrana [21]3 years ago
7 0

Answer:

<h3>example:</h3><h3>meaning of the blank you need to do complete the words</h3>

Explanation:

<h2>#CarryOnLearning</h2>
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Which statement about the alkali metals is correct?
icang [17]

Answer:

Sofia the firstttdbshsgshaksus

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3 years ago
When copper is bombarded with high-energy electrons, X rays are emitted. Calculate the energy (in joules) associated with the ph
Scrat [10]

Answer:

E = 12.92 × 10^(-16) J

Explanation:

Formula for energy is;

E = hc/λ

Where;

h is Planck's constant = 6.63 x 10^(-34) J.s

c is speed of light = 3 × 10^(8) m/s

λ is wavelength = 0.154 nm = 0.154 × 10^(-9) m

E = (6.63 x 10^(-34) × 3 × 10^(8))/(0.154 × 10^(-9))

E = 12.92 × 10^(-16) J

6 0
3 years ago
Compared to pure water, an aqueous solution of calcium chloride has what?
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It has a higher boiling point and a lower freezing point
8 0
3 years ago
At a certain temperature, the K p Kp for the decomposition of H 2 S H2S is 0.834 . 0.834. H 2 S ( g ) − ⇀ ↽ − H 2 ( g ) + S ( g
stira [4]

Answer:

Total pressure at equilibrium is 0.2798atm.

Explanation:

For the reaction:

H₂S(g) ⇄ H₂(g) + S(g)

Kp is defined as:

Kp = \frac{P_{H_{2}}*P_S}{P_{H_{2}S}} = 0.834

If initial pressure of H₂S is 0.150 atm, equilibrium pressures are:

H₂S(g): 0.150atm - x

H₂(g): x

S(g): x

Replacing in Kp:

\frac{X*X}{0.150atm-X} = 0.834

X² = 0.1251 - 0.834X

X² +  0.834X - 0.1251 = 0

Solving for X:

X = -0.964 → False solution: There is no negative pressures

X = 0.1298

Thus, pressures are:

H₂S(g): 0.150atm - 0.1298atm = <em>0.0202atm</em>

H₂(g): <em>0.1298atm</em>

S(g): <em>0.1298atm</em>

Thus, total pressure in the container at equilibrium is:

0.0202atm + 0.1298atm + 0.1298atm = <em>0.2798atm</em>

5 0
3 years ago
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Region 1 is solid state, 2 is liquid state and 3 is gaseous state. Using this fact, the correct statement is that, the particle are more orderly in region 1, which is the solid state. The other statements are false.
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