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3 years ago

Which statement is NOT true about energy?

Chemistry

1 answer:

never [62]3 years ago

3 0

Answer:

Explanation:

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For water to change from a liquid to solid, thermal energy needs to be .

telo118 [61]

answer: dispersed from the liquid so cold air can take its place

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2 years ago

Bainliest. Mole Conversion

Flauer [41]

Answer:

125g × 1 mol/16 grams = 7.81 × avogadros #

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2 years ago

How many moles are in 125g of water?

ki77a [65]

To calculate number of moles, all you do is divide the given mass by the molecular molar mass:

i.e. 125g / 18g = 6.94444g 

Therefore, your answer is (a) 6.94 g

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2 years ago

What is the process of grouping similar things together

andre [41]

Answer:

See Explanation

Explanation:

Mathematically, this means to combine like terms, such as terms with the same variable. In chemistry, this can refer to polar objects combining with polar objects while nonpolar objects combine with nonpolar objects.

8 0

3 years ago

If E=mc^2,solve for both m and c. Also, if m=80 and c=0.40 what is the value of E?

Pie

Answer:

$m = \frac{E}{c^2}$

$c = \sqrt{\frac{E}{m} }$

$E = 12.8 J$

Explanation:

Part 1: Solving for m

We are given that:

E = mc²

To solve for m, we will need to isolate the m on one side of the equation

This means that we will simply divide both sides by c²

$m = \frac{E}{c^2}$

Part 2: Solving for c

We are given that:

E = mc²

To solve for c, we will need to isolate the m on one side of the equation

This means that first we will divide both sides by m and then take square root for both sides to get the value of c

$c^2 = \frac{E}{m}\\ \\ c=\sqrt{\frac{E}{m}}$

Part 3: Solving for E

We are given that:

m = 80 and c = 0.4

To get the value of E, we will simply substitute in the given equation:

E = mc²

E = (80) × (0.4)²

E = 12.8 J

Hope this helps :)

4 0

3 years ago