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kenny6666 [7]
3 years ago
7

Heat is thermal energy transferred from one object to another because of a difference in ____.

Chemistry
2 answers:
kicyunya [14]3 years ago
5 0

c Temperature because it transfer the heat though ]out it

Anvisha [2.4K]3 years ago
3 0
The answer is temperature (may be wrong)
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Which energy transformation takes place when a firecracker explodes
Vlad1618 [11]
D. Chemical to thermal and electromagnetic
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3 years ago
What is an advantage of series circuits?
Zanzabum

The answer you are looking for is A: Adding more batteries will increase the current

Since you have a circuit in series, that means that all of the bulbs would be connected to one wire. If you were add more batteries to that <em>one </em>wire, you would end up with a greater flow of energy throughout the bulbs/wire

4 0
4 years ago
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What is the solubility (in g/L) of calcium fluoride at 25°C? The solubility product constant for calcium fluoride is 3.4 × 10–11
PilotLPTM [1.2K]

<u>Answer:</u> The correct answer is Option b.

<u>Explanation:</u>

The balanced equilibrium reaction for the ionization of calcium fluoride follows:

CaF_2\rightleftharpoons Ca^{2+}+2F^-

                s       2s

The expression for solubility constant for this reaction will be:

K_{sp}=[Ca^{2+}][F^-]^2

We are given:

K_{sp}=3.4\times 10^{-11}

Putting values in above equation, we get:

3.4\times 10^{-11}=(s)\times (2s)^2\\\\3.4\times 10^{-11}=4s^3\\\\s=2.04\times 10^{-4}mol/L

To calculate the solubility in g/L, we will multiply the calculated solubility with the molar mass of calcium fluoride:

Molar mass of calcium fluoride = 78 g/mol

Multiplying the solubility product, we get:

s=2.04\times 10^{-4}mol/L\times 78g/mol=159.12\times 10^{-4}g/L=0.015g/L

Hence, the correct answer is Option b.

3 0
3 years ago
The central atom in ________ does not violate the octet rule. the central atom in ________ does not violate the octet rule. sf4
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We have to know which do not violet octet rule.

The central atom in SF₄ does not violate the octet rule. the central atom in CF₄ does not violate the octet rule.

As per octet rule, atoms can combine either by transfer of valence electrons from one atom to another or by sharing of valence electrons in order to have an octet in their valence shell.

The central atom S of SF₄ contains 8 electrons in the valence shell. Also, C atom of CF₄ contains 8 electrons in the valence shell.

ICl₄⁻ contains 9 electrons in the outermost shell.

7 0
3 years ago
When 10 calories of heat are absorbed by 1 gram of water, the molecules vibrate faster and the temperature ________?
san4es73 [151]
The temperature increases.
6 0
3 years ago
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