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3 years ago

Can somebody that is good at science help me with these two questions? Please and thank you!

Chemistry

1 answer:

laiz [17]3 years ago

8 0

1. The forces make the train float because the poles are the same on each side causing them to repell (north and north repell)

2. B is more stable. If you pushed A it would fall and that would cause more disturbance

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How do the particles that are dispersed in a colloid differ from the particles suspended in a suspension?

Fed [463]

Answer:B, the colloid particles are larger.

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3 years ago

What are the steps to Photosynthesis

prohojiy [21]

Answer:

Step 1-Light Dependent. CO2 and H2O enter the leaf.

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2 years ago

A 0.885 M solution of KBr whose initial volume is 82.5 mL has more water added until its concentration is 0.500 M. What is the n

4vir4ik [10]

Answer:

$V_2=146mL$

Explanation:

Hello there!

In this case, since the equation for the calculation of dilutions is:

$M_1V_1=M_2V_2$

Whereas M is the molarity and V the volume, because the final concentration is lower than the initial. Thus, since we are asked to calculate the final volume, we solve for V2 as follows:

$V_2=\frac{M_1V_1}{M_2}=\frac{0.885M*82.5mL}{0.500M}\\\\V_2=146mL$

Best regards!

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2 years ago

Based on the information provided here, crude oil is:

Vikentia [17]

Answer: option C, a mixture

Explanation:

Crude oil is a mixture of hydrocarbons and different organic materials. It is refined into useful materials like petrol,diesel and various petrochemicals.

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3 years ago

Read 2 more answers

What is a daughter element

Evgesh-ka [11]

Answer:

The element formed when a radioactive element undergoes radioactive decay. The latter is called the parent. The daughter may or may not be radioactive.

Explanation:

hope this helps

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2 years ago