Help me pleaseeee!!!
help me pleaseeee!!! - 1

Answers

Answer 1
Answer:

Answer:

The bars and the gymnast's hands

Hope This Helps!

Answer 2
Answer:

thissssssssssssss isssssssssssss B


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Which one is it? Please help

Answers

Chemical properties can only be tested if you change the substance

Answer:

Chemical properties can be tested without changing the substance

Explanation:

A student requires 2.00 L of 0.100 M NH4NO3 from a 1.75 M NH4NO3 stock solution. What is the correct way to get the solution?

Answers

To solve this we use the equation,

 

M1V1 = M2V2

 

where M1 is the concentration of the stock solution, V1 is the volume of the stock solution, M2 is the concentration of the new solution and V2 is its volume.

 

1.75 M x V1 = 0.100 M x 2.0 L

V1 = -.11 L


Answer : The volume of NH_4NO_3 stock solution is, 0.114 L

Solution :

According to the dilution law,

M_1V_1=M_2V_2

where,

M_1 = molarity of NH_4NO_3 solution = 0.100 M

V_1 = volume of NH_4NO_3 solution = 2.00 L

M_2 = molarity of NH_4NO_3 stock solution = 1.75 M

V_2 = volume of NH_4NO_3 stock solution = ?

Now put all the given values in the above law, we get the volume of NH_4NO_3 stock solution.

(0.100M)* (2.00L)=(1.75M)* V_2

V_2=0.114L

Therefore, the volume of NH_4NO_3 stock solution is, 0.114 L

The Great Migration during World War I refersto the movement of
(1) factory workers from the Northeast to the
Sun Belt
(2) communists deported to Russia as
undesirable aliens
(3) African Americans to northern cities to find
work
(4) refugees fleeing from eastern Europe to the
United States

Answers

The Great Migration during World War I refers to the movement of African Americans to northern cities to find work. Therefore, option (3) is correct.

What is Great migration?

The Great Migration was the movement of millions of African Americans moved from the rural Southern United States to the urban Northeast, Midwest, and West. The great migration was caused by the poor economic conditions for African American people.

The historic change brought by the migration was fueled because the migrants moved to the largest cities in the United States such as New York City, Chicago, Los Angeles, Philadelphia, Cleveland, and Washington, D.C. at a time when these cities had a central social, political, cultural and economic influence over the United States.

African Americans established effective communities of their own. Therefore the Great migration movement was actually sending African Americans to northerncities to find work.

Learn more about Great migration, here:

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The Great Migration during WW 1 refers to the movement of African Americans to Northern Cities to find work.

What type of measurement is indicated by g/mL ?

Answers

Answer:

grams per milliliter.

Explanation:

While any units of mass and volume can be used to calculate density the most common are grams (g) and milliliters (ml). This gives density the units of grams per milliliter (g/ml).

A/an __ is a type of mass movement that occurs when a thin block of soil, rock, and debris separates from the underlying bedrock? A) creep B) Landslide C)Flow D) Eruption

Answers

It can be both, but B. Landslide is better.
A creep is when the debris moves slowly, and landslide is when it moves rapidly... And this isn't exactly chemistry... Hope I help...

A chemist mixes two liquids together. The reaction produces a gas and a solid. According to the law of conservation of mass, what should the chemist observe when she compares the total masses of the substances before and after the reaction? A.The masses are equal. B.The masses are inconsistent. C.The mass of the substances before the reaction is greater than the mass of the substances after the reaction. D.The mass of the substances before the reaction is less than the mass of the substances after the reaction.

Answers

 A is the answer. Because the masses are equal.
The answer is (A.) The masses are equal. (The law of conservation of mass says that mass cannot be created (added) or destroyed. So the total mass must be the same before and after. Hopefully, this helps)