3 years ago

Why should a new splint be used for each compound?

Chemistry

2 answers:

Inessa [10]3 years ago

7 0

a cord could support it.

forsale [732]3 years ago

7 0

So that the injury wont come straight back if it is bumped.

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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]

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

Explanation:

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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MA_775_DIABLO [31]

Answer: electricity

Explanation:

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Rus_ich [418]

Movement of water from an area of lower solute concentration to an area of higher solute concentration

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Answer:

third, fourth

Explanation:

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