2 years ago

crash course video about periodic table - The Periodic Table: Crash Course Chemistry #4 - write a reflection about this video

Chemistry

1 answer:

Stolb23 [73]2 years ago

7 0

Answer:

I liked the video, it gave us lots of information about___. __ means/ is about.

Explanation:

You might be interested in

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

7 0

2 years ago

The speedometer in a car does not measure the car’s velocity because velocity is

gogolik [260]

Answer:

Speed in a specific direction

Explanation:

3 0

2 years ago

Read 2 more answers

How easy can water pass through granite?

Margarita [4]

Immposibile because water cannot pass through granite

7 0

3 years ago

Chemical bonds release energy when they break apart, and take in energy when they form. How does this observation help explain t

soldier1979 [14.2K]

ENERGY WOULD BE RELALISED, MEANING BONDS ARE BEING BROKEN, SO IT IS AN EXOTHERMIC REACTION

6 0

2 years ago

Read 2 more answers

In which of the following is most of the water on earth held?

Blizzard [7]

The most water on earth is held by the oceans .

4 0

2 years ago