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Alex_Xolod [135]

3 years ago

10

Your bedroom air conditioner blows very cold air at night but only cool air during the day. Your bedroom gets lots of direct sun

light all day long. What's the hypothesis and experiment.

1 answer:

malfutka [58]3 years ago

8 0

What is the experiment

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Write the mole ratios of (2ca+o2➡2cao)

tresset_1 [31]

N(Ca)/2 = n(O)/1 = n(CaO)/2

The calcium and the Calcium Oxide are divided by 2 because of their coefficients
there is no number in front of the oxygen so it is over one.
Hope this helped!!

6 0

3 years ago

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Calculate the following quantity: volume of 1.403 M copper(II) nitrate that must be diluted with water to prepare 575.2 mL of a

Juliette [100K]

Answer:

328 ml

Explanation:

We have given final volume =575.2 ml=0.575 L

Final concentration = 0.8012 M

We know that moles of copper(II) nitrate = final volume ×final concentration =0.8012×.0575=0.4606 moles

We have to find initial volume

So initial volume $=\frac{moles\ of \ copper(II)\ nitrate}{initial\ concentration}=\frac{0.4606}{1.403}=0.328L=328ml$

6 0

4 years ago

To compare how different types of soil absorbed water, Christian set up an experiment. He poked equal numbers and sizes of holes

lilavasa [31]

Answer:

The empty cup

Explanation:

Got it right on the test

3 0

4 years ago

Can chlorine replace iodine?

Viktor [21]

Answer:

The reactivity of the halogen group (group 17) decreases from top to bottom within the group. Fluorine is the most reactive halogen, while iodine is the least. Since chlorine is above bromine, it is more reactive than bromine and can replace it in a halogen replacement reaction.

Explanation:

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3 years ago

The object represented by this graph is moving? A.away from the origin at a constant velocity. B.away from the origin at a decre

kumpel [21]

C. toward the origin at a constant velocity

8 0

3 years ago

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