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3 years ago

Evaluate each scenario described to determine the direction of heat flow.

Chemistry

1 answer:

LuckyWell [14K]3 years ago

3 0

Answer: tap water to ice cube

Explanation:

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5. What is the mass of 9.80 x 1023 formula units of zinc chlorate, Zn(CO3)2?

Zielflug [23.3K]

Answer:

$\boxed{\text{378 g}}$

Explanation:

We must convert formula units of Zn(ClO₃)₂ to moles and then to grams of Zn(ClO₃)₂.

Step 1. Convert formula units to moles

$\text{Moles of Zn(ClO$_{3}$)$_{2}$}\\\\= 9.80 \times10^{23}\text{ formula units Zn(ClO$_{3}$)$_{2}$} \times \dfrac{\text{1 mol Zn(ClO$_{3}$)$_{2}$}}{6.022 \times\ 10^{23} \text{ formula units Zn(ClO$_{3}$)$_{2}$}}\\\\= \text{1.627 mol Zn(ClO$_{3}$)$_{2}$}$

Step 2. Convert moles to grams

$\text{Mass of Zn(ClO$_{3}$)$_{2}$}\\\\= \text{1.627 mol Zn(ClO$_{3}$)$_{2}$} \times \dfrac{\text{232.29 g Zn(ClO$_{3}$)$_{2}$}}{\text{1 mol Zn(ClO$_{3}$)$_{2}$}}\\\\= \text{378 g Zn(ClO$_{3}$)$_{2}$}\\\\\text{The mass of Zn(ClO$_{3}$)$_{2}$ is } \boxed{\textbf{378 g}}$

5 0

4 years ago

What about 50 g of water? I need help what this

ELEN [110]

Answer:

3.38 Tablespoons

10.14 Teaspoons

0.21 U.S. Cups

0.18 Imperial Cups

0.20 Metric Cups

50.00 Milliliters

Explanation:

3 0

3 years ago

What is a scatter plot?

pogonyaev

Explanation:

A..........is the correct answer

if it helps you then plzz mark me brainliest

6 0

3 years ago

Read 2 more answers

Which of the following is a way in which water resources are consumed? a. drinking b. industry c. business d. all of the above P

kirill [66]

all of the above is the correct answer

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4 years ago

Nitration of 1,4−dimethylbenzene (p−xylene) gives a single product having the molecular formula c8h9no2 in high yield. draw this

GarryVolchara [31]

Structure is in document below.
The mononitration of p-xylene can be easily carried out at 30 degrees C.
Para-xylene (p-xylene) is an aromatic hydrocarbon, one of the three isomers of dimethylbenzene. Para-xylene is colorless and highly flammable, not acutely toxic and has some narcotic effects.

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8 0

3 years ago