3 years ago

What makes the results of a scientific experiment accurate?

Chemistry

2 answers:

Dmitriy789 [7]3 years ago

6 0

Answer:

Explanation:

That's the best answer out of all of them.

Karolina [17]3 years ago

5 0

Answer: A. Having multiple trials.

Explanation:

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Gwar [14]

Copper nitrate

Copper nitrate is the oxidizing agent as it gets reduced from +2 to 0 oxidization State and oxidize Fe from 0 to +2 state.

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2 years ago

How to convert cm^3 to kL

svetoff [14.1K]

Answer:

1e-6

Explanation:

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3 years ago

A student obtains the following data: Mass of empty, dry graduated cylinder: 21.577 g Volume added of NaCl solution: 4.602 mL Ma

klasskru [66]

<u>Answer:</u> The density of NaCl solution is 3.930 g/mL

<u>Explanation:</u>

We are given:

Mass of cylinder, $m_1$ = 21.577 g

Mass of NaCl and cylinder combined, M = 39.664 g

Mass of NaCl, $m_2$ = $(M-m_1)=(39.664-21.577)g=18.087g$

To calculate density of a substance, we use the equation:

$\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}$

We are given:

Mass of NaCl = 18.087 g

Volume of NaCl solution = 4.602 mL

Putting values in above equation, we get:

$\text{Density of NaCl}=\frac{18.087g}{4.602mL}\\\\\text{Density of NaCl}=3.930g/mL$

Hence, the density of NaCl solution is 3.930 g/mL

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2 years ago

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Which of these is true about the mantle?

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