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2 years ago

Which substance would retain the most heat for the longest period of time?

Chemistry

2 answers:

Sergio [31]2 years ago

6 0

Answer:

<h2>THIS IS ANSWER: <em> The different materials have different densities and capa city heat But capacity heats is how much unit of material , and the many materials or any metals is how measures of conductions of heat energy ...</em></h2>

Explanation:

<em>but capacity heats of material can be hold another unit and either materials (volume , mass) somethings like how ,capacity heat compare to the materials or can be molybdenum ,or but the better insulations or any heat energy and also take a long time to heats up of materials</em>

<h3><em> sana maka tulong?</em></h3>

Harrizon [31]2 years ago

4 0

<h3>Water</h3>

<em>Specific heat is defined as the amount of heat one gram of a substance must absorb or lose to change its temperature by one degree Celsius.</em>

For water, this amount is one calorie, or 4.184 Joules.

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Novay_Z [31]

Explanation:

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7 0

3 years ago

I need some help with with question:

defon

Answer:

C1V1=C2V2

C1 is 2.0mol/l

V1=?

C2=.4mol/L

V2=100ml or for this 0.1L

V1 is 20ml

Best way to prepare this is to measure out 20ml of the 2 molar solution and add 80mL to it to get to 100mL

Explanation:

8 0

3 years ago

The atomic mass of an atom can be found by

sashaice [31]

The answer to this question is A

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3 years ago

What is the pH of a<br> 2.5 x 10-5 M solution<br> of HCI?

aalyn [17]

Answer:

The pH of the solution is 4.60.

Explanation:

The pH gives us an idea of the acidity or basicity of a solution. More precisely, it indicates the concentration of H30 + ions present in said solution. The pH scale ranges from 0 to 14: from 0 to 7 corresponds to acid solutions, 7 neutral solutions and between 7 and 14 basic solutions. It is calculated as:

pH = -log (H30 +)

pH= -log (2,5 x 10-5)

7 0

3 years ago

29.47 mL of a solution of the acid HBr is titrated, and 72.90 mL of 0.2500-M NaOH is required to reach the equivalence point. Ca

Klio2033 [76]

The original concentration of the acid solution is 6.175 $\times$ 10^-4 mol / L.

<u>Explanation:</u>

Concentration is the ratio of solute in a solution to either solvent or total solution. It is expressed in terms of mass per unit volume

HBr + NaOH -----> NaBr + H2O

There is a 1:1 equivalence with acid and base.

Moles of NaOH = 72.90 $\times$ 10^-3 $\times$ 0.25

= 0.0182 mol.

[ HBr ] = moles of base / volume of a solution

= 0.0182 / 29.47

= 6.175 $\times$ 10^-4 mol / L.

4 0

3 years ago