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3 years ago

What is -22 = -9+ n

Chemistry

1 answer:

Anestetic [448]3 years ago

8 0

Answer:

n= -13

Explanation:

-22 = -9 + n

first flip the equation

n + -9 = -22

then add 9 beacuse we need to do the opposite to find n

so -22 + -9 = - 13

so n = -13

plz mark brainliest i just need 1 more plz plz plz!

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Which of the following (with specific heat capacity provided) would show the smallest temperature change upon gaining 200.0 J of

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Answer: The smallest temperature change is shown by water.

Explanation:

To calculate the heat absorbed or released, we use the equation:

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where,

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m = mass of the substance

C = specific heat of substance

$\Delta T$ = change in temperature

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For the given options:

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We are given:

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Option b: 50.0 g water, $C_{water}=4.18J/g^oC$

We are given:

$m=50.0g\\C_{water}=4.18J/g^oC$

Putting values in equation 1, we get:

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Option b: 25.0 g Pb, $C_{Pb}=0.128J/g^oC$

We are given:

$m=50.0g\\C_{Pb}=0.128J/g^oC$

Putting values in equation 1, we get:

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Change in temperature = 62.5°C

Option d: 25.0 g Ag, $C_{Ag}=0.235J/g^oC$

We are given:

$m=25.0g\\C_{Ag}=0.235J/g^oC$

Putting values in equation 1, we get:

$200.0J=25.0g\times 0.235J/g^oC\times \Delta T\\\\\Delta T=\frac{200}{25\times 0.235}=34.04^oC$

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We are given:

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detail is given below.

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Symbol of neutron= n⁰

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While the atomic number is 20.

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2 years ago

What is -22 = -9+ n​

What is -22 = -9+ n