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worty [1.4K]
3 years ago
10

When 500 g of water is cooled from 80.0°C to 10.0°C, how much heat energy is lost?

Chemistry
2 answers:
vampirchik [111]3 years ago
6 0

I don’t know

Explanation:

Rashid [163]3 years ago
4 0
This is a solved problem that is close I cannot tell u the direct answer but I hope this STEP BY STEP layout will help

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Abnormal behavior is defined as a?
hodyreva [135]

Answer:

Abnormality is a behavioral characteristic assigned to those with conditions regarded as rare or dysfunctional. Behavior is considered abnormal when it is atypical or out of the ordinary, consists of undesirable behavior, and results in impairment in the individual's functioning

Explanation:

5 0
3 years ago
N2(g) + 3H2(g) → 2NH3(g) How many grams of N2 are required to produce 240.0g NH3?
just olya [345]

Answer:

\large \boxed{\text{197.4 g}}

Explanation:

We will need a chemical equation with masses and molar masses, so, let's gather all the information in one place.

Mᵣ:     28.01               17.03

            N₂ + 3H₂ ⟶ 2NH₃

m/g:                          240.0

(a) Moles of NH₃

\text{Moles of NH}_{3} = \text{240.0 g NH}_{3}\times \dfrac{\text{1 mol NH}_{3}}{\text{17.03 g NH}_{3}}= \text{14.09 mol NH}_{3}

(b) Moles of N₂

\text{Moles of N$_{2}$} = \text{14.09 mol NH}_{3} \times \dfrac{\text{1 mol N$_{2}$}}{\text{2 mol NH}_{3}} = \text{7.046 mol N$_{2}$}

(c) Mass of N₂

\text{Mass of N$_{2}$} =\text{7.046 mol N$_{2}$} \times \dfrac{\text{28.01 g N$_{2}$}}{\text{1 mol N$_{2}$}} = \textbf{197.4 g N$_{2}$}\\\\\text{The reaction requires $\large \boxed{\textbf{197.4 g}}$ of N$_{2}$}

7 0
3 years ago
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How would you test a colorless crystalline compound to determine if it was a hydrate?
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True or false? an element consists of only single atoms of that element. <br> a. True <br> b. False
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From what i read, the answer should be  b--false
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The answers would be organisms in water, water, and air.
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