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fredd [130]
3 years ago
8

While washing his hands before the client consultation with Chloe, Jayden dropped some water onto the countertop. When he came b

ack later to wipe it up, it has evaporated. What happened to the drops of water?
Chemistry
1 answer:
Anastaziya [24]3 years ago
3 0

Answer:

The water molecules turned into gas called<em> "water vapor"</em> and are now part of the air.

Explanation:

The "drops of water" are actually made up of<u> water molecules.</u> Under <em>heat,</em> they change their phase from liquid to gas. This means that the water molecules <em>move faster. </em>Such movement allows the molecules to escape into the atmosphere as gas. Such gaseous state of water is called "water vapor" <em>(transparent in color).</em>

The client consultation must have taken time that the drops of water evaporated when Jayden came back.

Aside from evaporation, water vapor may also be produced through the process called "sublimation." This happens when<em> ice directly turns into gas without becoming a liquid.</em>

So, this explains the answer.

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What does homogeneous mixture of elements mean
mina [271]

If a substance is not chemically pure, it is either a heterogeneous mixture or a homogeneous mixture. If its composition is uniform throughout, it is a homogeneous mixture.

8 0
3 years ago
If you have 5 moles of carbon dioxide at 30degrees C and under 600mmHg of pressure, what will the volume be
trapecia [35]

Answer:

157.64 L

Explanation:

We'll begin by converting 30 °C to Kelvin temperature. This can be obtained as follow:

T(K) = T(°C) + 273

T(°C) = 30 °C

T(K) = 30 °C + 273

T (K) = 303 K

Next, we shall convert 600 mmHg to atm. This can be obtained as follow:

760 mmHg = 1 atm

Therefore,

600 mmHg = 600 mmHg × 1 atm / 760 mmHg

600 mmHg = 0.789 atm

Finally, we shall determine the volume of the gas. This can be obtained as follow:

Number of mole (n) = 5 moles

Temperature (T) = 303 K

Pressure (P) = 0.789 atm

Gas constant (R) = 0.0821 atm.L/Kmol

Volume (V) =?

PV = nRT

0.789 × V = 5 × 0.0821 × 303

0.789 × V = 124.3815

Divide both side by 0.789

V = 124.3815 / 0.789

V = 157.64 L

Therefore, the volume of the gas is 157.64 L

7 0
3 years ago
A catalyst can speed up the rate of a given chemical reaction by
hjlf

Decreasing the activation energy needed for the reaction.

4 0
3 years ago
Nguyên tố A có cấu hình electron phân lớp cuối cùng là 4p3. A phải
Studentka2010 [4]

Answer: ?

Explanation: I translated this and It makes no sense.

Tôi đã dịch điều này và nó không có ý nghĩa.

4 0
2 years ago
Which is the correct net ionic equation for the reaction of aqueous ammonia with nitric acid? Which is the correct net ionic equ
Svet_ta [14]

Answer:

The last option:

  • NH₃ (aq) +  H⁺ (aq)  →  NH₄⁺ (aq)

Explanation:

1) Word equation

  • Aqueous ammonia + nitric acid → aqueous ammonium nitrate

2) Chemical (molecular) equation

  • NH₃ (aq) + HNO₃ (aq)  → NH₄ NO₃

3) Ionization reactions

Write the dissociation of the soluble ionic compounds:

  • HNO₃ → H⁺ + NO₃⁻
  • NH₄ NO₃ → NH₄⁺ + NO₃⁻

4) Total ionic equation:

  • NH₃ (aq) +  H⁺ (aq) + NO₃⁻ (aq) →  NH₄⁺ (aq) + NO₃⁻ (aq)

5) Net ionic equation

You must cancel the spectator ions, which are those ions that are repeated in both reactant and product sides, i.e. NO₃⁻. They are name spectator because they do not participate (change) during the reaction.

  • NH₃ (aq) +  H⁺ (aq)  →  NH₄⁺ (aq)

And that is the last choice of the list.

4 0
3 years ago
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