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Ratling [72]
3 years ago
13

Which of the following factors affect friction?

Chemistry
1 answer:
Sunny_sXe [5.5K]3 years ago
8 0

Answer:

A

Explanation:

surface on which the object is moved or the nature of the surface .i.e. rough surface ,smooth surface ,liquids

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In some areas of the Earth, the crust is squeezed and pushed upward. This is a _______ process in that it directly forms _______
NemiM [27]
So..... I believe this is a Convergent boundary and mountains..
7 0
3 years ago
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Is dissolving salt a chemical change or physical change and why?
Firlakuza [10]

It's a physical change because the composition of the salt hasn't change. Only the change in substance/form has occured. To tell if something has undergone physical change is:

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To tell if something changed chemically:

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4 0
3 years ago
What happens when you increase the temperature of a reaction?
aalyn [17]
D. More collisions occur and the time required for the reaction decreases
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3 years ago
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You need to make 10 mL of 2 mg/ml solution of protein and you have 25 mg/mL solution. How much protein solution and water do you
meriva

Answer:

0.8 mL of protein solution, 9.2 mL of water

Explanation:

The dilution equation can be used to relate the concentration C₁ and volume V₁ of the stock/undiluted solution to the concentration C₂ and volume V₂ of the diluted solution:

C₁V₁ = C₂V₂

We would like to calculate the value for V₁, the volume of the inital solution that we need to dilute to make the required solution.

V₁ = (C₂V₂) / C₁ = (2mg/mL x 10mL) / (25 mg/mL) = 0.8 mL

Thus, a volume of 0.8 mL of protein solution should be diluted with enough water to bring the total volume to 10 mL. The amount of water needed is:

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6 0
3 years ago
What effect did the Punic Wars have on Rome's military development? (4 points)
Doss [256]

Answer:

The correct answer is: “The Roman army grew in size and became dominant in the Mediterranean region”.

Explanation:

The Punic wars were a series of three wars that were fought between Rome and Carthage. At the end of the third war, Rome established itself as an empire, it conquered the Carthage’s empire, destroyed it completely and became the most powerful state of the Western Mediterranean.

6 0
3 years ago
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