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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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Gorillas have 48 chromosomes. The egg cell of a female gorilla has ____ chromosomes. 96 48 or 24

exis [7]

It would be 24 because they inherit half of there chromosomes from their dad and the other half from their mom<span />

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3 years ago

Read 2 more answers

What is the PH of a solution with (H+) = 7.0 * 10^-12? A. 11.15 B. -11.15 C. 12.85 D -12.00

larisa [96]

Answer: A. 11.15

Explanation:

The pH of a solution is given by the formular; pH = -log [H+].

pH = - log [ 7.0 x 10 ∧-12]

= 12 - log 7

= 12 - 0.845

= 11.15

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3 years ago

Hydrogen (H), oxygen (O), and Nitrogen (N) are all examples of which of the following?

Llana [10]

Answer:

All are correct

Explanation:

This might be a little deceptive. The question shows H, O and N which would designate ELEMENTS.

However, all of these can also be considered compounds and molecules as well. BUT, they are H₂, O₂ and N₂ when they are molecules and compounds.

So it depends on the whether the question is being literal or not.

8 0

2 years ago

What is the shape of an ammonia molecule?

Volgvan

The shape of an ammonia molecule is trigonal pyramidal (see the image below).

The N atom is at the top of the pyramid and the three H atoms are at the corners of a triangular base.

3 0

3 years ago

Read 2 more answers

At a certain temperature this reaction follows second-order kinetics with a rate constant of : Suppose a vessel contains at a co

Feliz [49]

The question is incomplete, the complete question is:

At a certain temperature this reaction follows second-order kinetics with a rate constant of 14.1 $M^{-1}s^{-1}$ :

$2SO_3(g)\rightarrow 2SO_2(g)+O_2(g)$

Suppose a vessel contains $SO_3$ at a concentration of 1.44 M . Calculate the concentration of

Answer:

The concentration of $SO_3$ in the vessel 0.240 seconds later will be 0.2452 M.

Explanation:

Integrated rate law for second order kinetics is given by:

$\frac{1}{a}=kt+\frac{1}{a_0}$

k = rate constant

$a_0$ = initial concentration

a = Concentration after time t.

We have :

$2SO_3(g)\rightarrow 2SO_2(g)+O_2(g)$

Initial concentration $SO_3$ = $a_0=1.44 M$

Final concentration $SO_3$ at t = a =?

t = 0.240 s

Rate constant of the reaction = k = 14.1 $M^{-1}s^{-1}$

$\frac{1}{a}=14.1 M^{-1}s^{-1}\times 0.240 s+\frac{1}{1.44 M}$

$a=0.2452 M$

The concentration of $SO_3$ in the vessel 0.240 seconds later will be 0.2452 M.

4 0

3 years ago