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marta [7]
3 years ago
14

The oceanic crust is made primarily from this type of rock. A) basalt B) halite C) granite D) limestone

Chemistry
1 answer:
masya89 [10]3 years ago
7 0
The answer is A. Basalt rock.

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Which enzymes has the most significant effect on the chemical digestion of kool aid drink?
BartSMP [9]

Answer:

pancreatic amylase, lingual amylase, intestinal amylase

Explanation:

When considering a sugar drink, the enzymes involved in its digestion are first the alpha amylase found in saliva, responsible for degrading starch molecules, thus generating unique molecules of monosaccharides. Then the ones in charge of continuing with the digestion will be the pancreatic amylase and the intestine at the duodenal level.

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What is a hypothesis
zmey [24]
<span>A supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.</span>
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How much heat is required to melt 20 g of gold at 1064.18 °C with a heat of fusion of 64 J/g *
andrew-mc [135]

Answer:

1280J are required.

Explanation:

Heat of fusion is defined as the amount of heat required to change its state from liquid to solid at its melting point at constant pressure.

As heat of fusion of gold is 64J/g, there are required 64J to melt 1g of gold at its melting point. The energy required to melt 20g is:

20g * (64J/g) =

1280J are required

6 0
2 years ago
When the surface water temperature is still well below the water boiling temperature, some bubbles at the bottom tend to float u
irga5000 [103]

Answer:

The reasons why the seemingly floating bubbles disappear was that they tend to loss their latent heat to the water molecules at the surface water.

Explanation:

Heat energy has a considerable effect on the velocity of molecules including water. The water molecules below the container will receive much more heat energy than those above it. This heat energy in the form of specific heat capacity and latent heat that result in the increase in the speed of individual molecules of water and finally to the escape of the molecules to a colder region of the container, in this case the upper region. At the collision of the bottom water to the surface water, they tend to exchange their heat content, the hotter molecules will lose their heat to the cold ones. When the formerly hot molecules encounter this, it will result in lowering the temperature and consequentially to the reduction of their movement, once in the form of bubble, now become ordinary water. This convectional transfer of heat energy will continue until the whole system has a uniform temperature depending on the consistency of the heat source.

7 0
3 years ago
Which of the following is a combustion reaction?
azamat

Answer:

A.NaOH+HCI+NaCI+H2O

Explanation:

It's a Acid-base

5 0
2 years ago
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