Can someone solve 5 ?

Answers

Answer 1

Answer: Please what are we solving for
Is it oxidation number or what?

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Which of the following substance is not an acid? 1. Substance A is tested and found to have a pH of 3. 2. Substance B, a common food, tastes sour. 3. Substance C causes metals to corrode. 4. Substance D feels slippery in solution.
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Explain a condensation and a hydrolysis reaction.
Among the factors that affect the solubility of a substance are type of solvent and temperature.

Does a reaction occur?
Pb + Cu(CIO), → Pb(ClO3)2 + Cu

Answers

Answer:

No.

Explanation:

Pb (lead) is higher on the activity series than Cu (copper). Since Cu is lower, no reaction forms.

The kinetic molecular theory assumes that the particles of an ideal gas(1) are in random, constant, straight-line motion
(2) are arranged in a regular geometric pattern
(3) have strong attractive forces between them
(4) have collisions that result in the system losing energy

Answers

Option no.1 are in random, constant, straight-line motion

Following assumptions:
a. number of molecular size is very large, but their separation is very large compared to their molecular size.
b. randomly distribution of molecules in which their speed does not change
c. molecules undergo elastic collision with other molecules but exert no force
d. molecules followed Newton's laws of motion

What is the pHpH of a 0.10M0.10M solution of NCNNaCN? The aK a of HCNHCN is 4.9×10−104.9×10 −10 . A) 5.15 B) 8.85 C) 2.85 D) 11.15

Answers

Hello, you can find the photo I took here, it should help. https://t.ly/MhKKA

What is the Arrhenius definition of a base? A substance that increases H3O+ concentration when it is dissolved in water. A substance that increases OH– concentration when it is dissolved in water. A compound that donates protons. A compound that accepts protons

Answers

Answer : The correct option is A substance that increases $OH^-$ concentration when it is dissolved in water.

Explanation :

Arrhenius Definitions :

Arrhenius Acid : It increases the concentration of hydronium ion $(H_3O^+)$ in an aqueous solution. In other words, a substance dissociates in water to form $H^+$ ion.

Arrhenius Base : It increases the concentration of hydroxide ion $(OH^-)$ in an aqueous solution. In other words, a substance dissociates in water to form $OH^-$ ion.

Answer:

Explanation:

A material is ductile, conducts electricity, and is magnetic. The material is a _____. metal nonmetal metalloid impossible to tell

Answers

The answer is metal. Metals are substances generally considered to be good conductors of electricity. They are also considered to be ductile and malleable which means they can be bent or stretched into think wires without breaking. Lastly, some metals like iron, cobalt, and nickel are strongly magnetic.

the answer your looking for is metal

2H₂O ----> 2H₂ + O₂How many moles of hydrogen are produced when 6.28 mol of oxygen form?

A.) 3.14 mol
B.) 6.28 mol
C.) 12.6 mol
D.) 25.2 mol

Answers

2 H2O ------------> 2 H2 + 1 O2

2 mol H2 ----> 1 mol O2
x mol H2 -----> 6.28 mol O2

x = 6.28 * 2

x ≈ 12.6 mol

answer C

hope this helps!.

6.28 mol O2* (2 mol H2/ 1 mol O2)= 12.6 mol H2

The correct answer is C. 12.6 mol~

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When a cold drink is taken from a refrigerator, its temperature is 5°C. After 25 minutes in a 20°C room its temperature has increased to 10°C. (Round your answers to two decimal places.) (a) What is the temperature of the drink after 40 minutes? 12.51 Incorrect: Your answer is incorrect. °C (b) When will its temperature be 12°C?