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3 years ago

This is my almost last question plsss help

Chemistry

2 answers:

Morgarella [4.7K]3 years ago

7 0

The third one is correct, not sure abt another one

algol133 years ago

4 0

Answer:

The Government did not encourage Confucius' philosophy until more than 350 years after Confucius first began teaching.

and

Some kinds of Confucianism we're influenced by other philosophies.

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A or B or C or D, fassst plzzz

olga nikolaevna [1]

Answer:

a.option is the correct answer

4 0

2 years ago

Read 2 more answers

Why should reactions not be performed in graduated cylinder?

Stells [14]

Answer:

A Graduated Cylinder has a limited round and hollow shape with each stamped line demonstrating the volume of fluid being estimated. While they are commonly more exact and exact than lab flagons and recepticles, they ought not be utilized to perform volumetric examination.

3 0

3 years ago

You place 12.0 milliliters of water in a graduated cylinder. Then you add 15.0 grams of metal to the water and the new water lev

Marrrta [24]

Answer:

<h3>The answer is 7.85 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

volume = final volume of water - initial volume of water

volume = 13.91 - 12 = 1.91 mL

We have

$density = \frac{15}{1.91} \\ = 7.853403141...$

We have the final answer as

Hope this helps you

8 0

3 years ago

Read 2 more answers

A piston is pressurized to 15.5 psi at 405 K. If the piston compresses the air, from 8.98 L to 7.55 L, and the pressure drops to

masya89 [10]

Answer:

239.45 K

Explanation:

Ideal gas law formula is P1V1T2=P2V2T1

Rearrange that to get...

T2=T1P2V2/P1V1

Fill in the values and solve.

7 0

3 years ago

How many molecules are in 1.28 mols of silicon dioxide

coldgirl [10]

Answer:

7.71x10^23 molecules

Explanation:

Avogadro's # = 6.022x10^23

1.28 mol SiO2 x 6.022x10^23/ 1 mol SiO2 = 7.71x10^23 molecules

8 0

3 years ago