CHEMISTRY HIGH SCHOOL

Write a balanced net ionic equation for the following reaction. Explain how you arrived at this answer. What did you cancel out?AgNO^3 (aq) + KCI (aq) ----> AgCI (s) + KNO^3 (aq)

Answers

Answer 1

Answer:

The net ionic equation is

Ag⁺(aq) +Cl⁻(aq) → AgCl(s)

Explanation

AgNO₃ (aq) + KCl (aq)→ AgCl(s) +KNO₃(aq)

from above molecular equation break all soluble electrolyte into ions

Ag⁺(aq) +NO₃⁻ (aq) + K⁺(aq) +Cl⁻(aq) → AgCl (s) + K⁺(aq) + No₃⁻(aq)

cancel the spectator ions in both side of equation =K⁺ and NO₃⁻ ions

The net ionic equation is therefore

= Ag⁺(aq) + Cl⁻(aq) → AgCl(s)

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if you are finding the value of a 10 g piece of metal that has a value of 5 dollars/ 1 gram what would be my final unit

Answers

5/1 = 10/x

5x = 10
--- -----
5. 5

X = 2 dollars

A solution with a pH of 2.0 has a hydronium ion concentration ten times greater than a solution with a pH of(1) 1.0 (3) 3.0
(2) 0.20 (4) 20.

Answers

Answer:The correct answer is (3).

Explanation:

The pH of the solution is defined as negative logarithm of $H^+$ or hydronium ions ions in the solution.

$pH=-\log[H^+]$

$2=-\log[H^+]$

$[H^+]=0.01 M$

The pH with 10 times the concentration $H^+$ ions.

$[H^+]=10* [H^+]'$

$pH=-\log[H^+]'=-\log[(0.01)/(10)]=3$

Hence, the correct answer is (3).

The answer is (3) 3.0. The solution with a pH of 2.0 has greater concentration means the other solution has greater pH. pH=-lg[H+]. So we can get the pH of other solution is 3.

Which of the radioactive emissions has the highest energy? A. Beta B. Gamma C. Alpha (thank you so much )

Answers

B Gamma hope im helping

I think it is B. Gamma, cause it made the Hulk. That is not my only reason though.

As the temperature of a sample of matter is increased, what happens to the average kinetic energy of the particles in the sample?A. It decreases.
B. It increases.
C. It does not change.

Answers

Answer:

B. It increases.

Explanation:

The kinetic energy is associated with the motion of the particles of a substance.

When the temperature increases, the movement will increase, which means that the velocity of the particles will increase.

According to the mathematical defenition of kinetic energy

$Ek = (1)/(2) mv^(2)$

The higher the velocity, the higher the kinetic energy.

If the matter is made by a monoatomic gas, the relation between the kinetic energy and temperature is even more evident:

$Ec = (3)/(2)(R)/(Na) T$

R: gas constant

Na: Avogadro's number

T: temperature

it would be
B. it increases.

Density is a measure of mass divided by volume

weight divided by area

volume divided by weight

mass divided by area

Answers

Density is mass divided by volume.

What was the optimal mix of hydrogen and oxygen to launch the pipette rockets in the Combustion lab?

Answers

Answer:

The best mixture is 2 hydrogens and 1 oxygen.

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