3 years ago

In which of the following situstions would convection currents occur

Chemistry

2 answers:

Alexus [3.1K]3 years ago

8 0

the answer is B: within the water in the lake as ice forms on top.

andriy [413]3 years ago

5 0

I believe your answer should be C because the heat would move from the soup to the spoon.

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In the laboratory, a volume of 100 mL of sulfuric acid (H2SO4) is recorded. How many g are there of the liquid if its density is

ser-zykov [4K]

Answer:

$\large \boxed{\text{183 g}}$

Explanation:

$\begin{array}{rcl}\text{Density} & = & \dfrac{\text{Mass}}{\text{Volume}}\\\\\rho & = &\dfrac{m}{V}\\\\1.83 \text{ g$\cdot$ cm}^{-3} & = & \dfrac{m}{\text{100 cm}^{3}}\\\\m & = & \text{183 g}\\\end{array}\\\text{There are $\large \boxed{\textbf{183 g}}$ of sulfuric acid.}$

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3 years ago

Sodium nitrate is used in fertilizers, explosives, and glass manufacturing. Give the formula for this compound

krek1111 [17]

Explanation:

The molecular formula for Sodium Nitrate is NaNO3. The SI base unit for amount of substance is the mole. 1 grams Sodium Nitrate is equal to 0.011765443644878 mole.

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2 years ago

What is the independent variable in an experiment?

Varvara68 [4.7K]

The first answer is B and the second answer is B

7 0

3 years ago

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10.0 g of calcium carbonate was heated. The mass of calcium oxide left was 5.6 g. Calculate the mass of

Kipish [7]

Answer:

4.4g

Explanation:

Mass of CaCO3 = 10g

Mass of CaO = 5.6g

Mass of CO2 =?

Mass of CaCO3 = Mass of CaO + Mass of CO2

Mass of CO2 = Mass of CaCO3 — Mass of CaO

Mass of CO2 = 10 — 5.6

Mass of CO2 = 4.4g

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3 years ago

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Two students are trying to figure out the Calories per gram of potato chips. They burn part of the potato chip and feel the heat

kakasveta [241]

Answer:

Explanation:

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2 years ago