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insens350 [35]
4 years ago
8

Atomic mass of 14.01 amu

Chemistry
1 answer:
OleMash [197]4 years ago
7 0
What is the element with 7 protons?  They probably also have 7 neutrons.  Just a ball park figure guess.
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If five moles of a gas at a pressure of 5.4 kpa have a volume of 120 liters, what is the temperature?
ra1l [238]
<h3>The temperature is 15.58 kelvin </h3>

<em><u>Solution:</u></em>

<em><u>Ideal gas equation is given as:</u></em>

PV = nRt

Where,

P = pressure

V = volume

n = amount of substance

R = ideal gas constant

T = temperature

From given,

V = 120 liters

n = 5 moles

R = 8.314\ \frac{Lkpa}{mol\  K}

P = 5.4 kPa

T = ?

Therefore,

5.4 \times 120 = 5 \times 8.314 \times T\\\\648 = 41.57 \times T\\\\T = 15.58\ kelvin

Thus the temperature is 15.58 kelvin

4 0
3 years ago
One advantage to using nuclear power is
Veronika [31]

"NUCLEAR POWER" produces "no air pollution".

Option: D

<u>Explanation</u>:  

As nuclear power does not emit any hazardous gas or smoke thus it produces no air   pollution. But disposing of the waste is still a big issue in the case of nuclear power for which usually underground disposal in appropriate container method is opted but it's too have many disadvantages. Threat of an accident and the expenses of constructing nuclear reactors are really high so other three options are disadvantages of nuclear power.

6 0
4 years ago
How do you do this problem?
xeze [42]

Answer:

Ag₂CrO₄(s) + H⁺(aq) ⟶ 2Ag⁺(aq) + HCrO₄⁻(aq)

Explanation:

Ag₂CrO₄(s) ⇌ 2Ag⁺(aq) + CrO₄²⁻(aq).

Silver chromate is the salt of a strong base (AgOH) and a weak acid (H₂CrO₄).

HCrO₄⁻ is an even weaker acid than H₂CrO₄, so CrO₄²⁻ is a strong base.

Any added H⁺ will immediately combine with the chromate ions according to the reaction

H⁺ + CrO₄²⁻ ⟶ HCrO₄⁻

thereby removing chromate ions from solution.

According to Le Châtelier's Principle, more silver chromate will dissolve to replace the chromate ions that the H⁺  removes.

The overall equation for the reaction is

Ag₂CrO₄(s) ⇌ 2Ag⁺(aq) + <em>CrO₄²⁻(aq) </em>

<u>H⁺(aq) + </u><em><u>CrO₄²⁻(aq)</u></em><u> ⟶ HCrO₄⁻(aq) </u>

Ag₂CrO₄(s) + H⁺(aq) ⟶ 2Ag⁺(aq) + HCrO₄⁻(aq)

3 0
4 years ago
Which of the following is a single replacement reaction ?
Harman [31]

Answer:

well its D Mg + 2HCl ----- MgCl2 + H2

Explanation:

Because Magnesium Replaces Hydrogen

4 0
3 years ago
How far does light travel in 3.0 days
MArishka [77]

Answer:

d=7.77\times 10^{13}\ m

Explanation:

We know that the speed of light is equal to 3\times 10^8\ m/s

We need to find how far the light travel in 3 days.

Speed of an object is equal to distance covered divided by time taken.

Also, 1 day = 86400 s

3 days = 259200 s

So,

d=vt

d=3\times 10^8\times 259200\\\\d=7.77\times 10^{13}\ m

So, the light will travel 7.77\times 10^{13}\ m in 3 days.

7 0
3 years ago
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