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fomenos
3 years ago
9

Chao is thinking about doing a project on plate tectonics for the school science fair. Which design would best relate to how the

movement in the Earth’s mantle is related to plate motion?
a pot of boiling water to which Chao will add food coloring to show the movement of the water
a flat shallow pan filled with a thick liquid heated by a hot plate with thick wooden blocks on top of the liquid
a flat shallow pan filled with small metal beads topped by an assembled puzzle that is shaken from side to side
a flat shallow pan filled with a thick liquid that can be heated by a hot plate with pieces of a thin plastic sheet floating on top of the liquid
Chemistry
2 answers:
tatuchka [14]3 years ago
6 0

Answer:

d

Explanation:

alekssr [168]3 years ago
5 0

The correct answer is option <u><em>D) a flat shallow pan filled with a thick liquid that can be heated by a hot plate with pieces of a thin plastic sheet floating on top of the liquid.</em></u>

I just did the quiz and got it right!

Hope this helps and have a gr8 day buddies <3

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The element X has three naturally occurring isotopes. The masses (amu) and % abundances of the isotopes are given in the table b
denis-greek [22]

Answer:

220.42098 amu

Explanation:

(220 .9 X  .7422) + (220 X .0.1278) + (218.1 X 0.13) =     220.42098 amu

These are weighted averages.

So, we will take mass of one and multiply by abundance percentage that is provided and add them together.

In order to calculate the  average atomic mass, we have to convert the percentages of abundance to decimals. So, you get

(220 .9 X  .7422) + (220 X .0.1278) + (218.1 X 0.13) =     220.42098 amu

6 0
3 years ago
What is the name of a loop that electricity flows through?
aleksley [76]

Answer:

an electric circuit so 1

Explanation:

5 0
3 years ago
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What are columns on the periodic table called? What is the significance of the columns on the periodic table?
chubhunter [2.5K]

Answer:

The vertical columns of the periodic table are called groups, or families. The significance is elements with similar properties are placed in the same vertical columns. The horizontal rows of the periodic table are called periods. The significance is that properties vary from left to right along the rows.

Explanation:

We just did this in science

3 0
3 years ago
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Can someone give me an example of balancing equations with a solution that is simple?​
Monica [59]

Explanation:

H _{2}O _{2(aq)} →H _{2}O _{(l)}  + O _{2}(g) \\ solution  : 2 \:  and\: 2

6 0
3 years ago
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Decreasing the temperature of the reaction 3H2 + N2&lt;-----&gt;2NH3. In this reaction, the product absorbs heat. WHICH WAY WILL
AURORKA [14]

3H_{2}+N_{2}⇔2NH_{3}

Decreasing the temperature of the reaction,the reaction shifts forward.

The explanation is given below.

Explanation:

If the temperature of the reaction mixture is increased,then the equilibrium will shift to decrease the temperature.

If the temperature of the reaction mixture is decreased,then the equilibrium will shift to increase the temperature.

During the formation of the ammonia,it gives off heat.So it is an exothermic reaction.

3H_{2}+N_{2}⇔2NH_{3}

A decrease in the temperature favors the reaction that is exothermic (the forward reaction)because it produces energy.Therefore,if the temperature is decreased,the yield of the ammonia increases.

<em>Therefore if the temperature is increased,the reaction shifts forward and the yield of the ammonia increases and it is an exothermic reaction.</em>

7 0
3 years ago
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