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3 years ago

1)How can scientists use a seismograph to determine the density and depth of Earth's layers?

1 answer:

3 0

Hello Olivia!!!

Q.) Describe at least two geological events that can occur at a divergent boundary.

A.)Most active divergent plate boundaries occur between oceanic plates and exist as mid-oceanic ridges. Divergent boundaries also form volcanic islands which occur when the plates move apart to produce gaps which molten lava rises to fill.

Hope this can help!!!

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A solid mixture consists of 47.6g of KNO3 (potassium nitrate) and 8.4g of K2SO4 (potassium sulfate). The mixture is added to 130

IgorLugansk [536]

Answer: No crystals of potassium sulfate will be seen at 0°C for the given amount.

Explanation:

We are given:

Mass of potassium nitrate = 47.6 g

Mass of potassium sulfate = 8.4 g

Mass of water = 130. g

Solubility of potassium sulfate in water at 0°C = 7.4 g/100 g

This means that 7.4 grams of potassium sulfate is soluble in 100 grams of water

Applying unitary method:

In 100 grams of water, the amount of potassium sulfate dissolved is 7.4 grams

So, in 130 grams of water, the amount of potassium sulfate dissolved will be $\frac{7.4}{100}\times 130=9.62g$

As, the soluble amount is greater than the given amount of potassium sulfate

This means that, all of potassium sulfate will be dissolved.

Hence, no crystals of potassium sulfate will be seen at 0°C for the given amount.

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2 years ago

The elaboration likelihood model emphasizes the use of __________ persuasion and __________ persuasion methods. A. direct . . .

Angelina_Jolie [31]

Answer:

It's C, direct and peripheral.

Explanation:

Just took the test

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2 years ago

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Why do people use block and teckle systems to move heavy objects?

yaroslaw [1]

H. using a pulley system can reduce the load force, over a greater distance.

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2 years ago

A mineral is made from what in the ground

IrinaK [193]

Minerals are solid substances that occur naturally. They can be made from a single element (like gold or copper) or from a combination of elements.

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2 years ago

Why would the white blood cells have an abundance of lysosomes?

77julia77 [94]

Answer:

Explanation:

A. White blood cells have many lysosomes because they need to produce a lot of glucose and oxygen.

Lysosomes are found in all animal cells, but are most numerous in disease-fighting cells, such as white blood cells. This is because white blood cells must digest more material than most other types of cells in their quest to battle bacteria, viruses, and other foreign intruders.

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2 years ago

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