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Lisa [10]
2 years ago
11

How do you know something is there if you can't see it? *

Chemistry
1 answer:
lesantik [10]2 years ago
8 0

We can only see things if they give off light but be we use other senses to gather information about things we cannot see.

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3. How many more troops did the Union states have than the Confederate states?​
lions [1.4K]
At the beginning of the war the Northern states had a combined population of 22 million people. The Southern states had a combined population of about 9 million. This disparity was reflected in the size of the armies in the field. The Union forces outnumbered the Confederates roughly two to one.


Also this should be listed for history
3 0
3 years ago
How many liters of CH, gas are in 5.40 moles of CH, gas at STP?<br> (3 sig figs)
charle [14.2K]

Answer:

Try this link https://chem.libretexts.org/Courses/Mount_Aloysius_College/CHEM_100%3A_General_Chemistry_(O'Connor)/08%3A_Solids_Liquids_and_Gases/8.E%3A_Solids_Liquids_and_Gases_(Exercises)

5 0
2 years ago
The Red Sea is widening at a rate of 1.25 centimeters per year. How many years will it take to widen another 812.5 centimeters?
Alla [95]

The correct answer is - B) 650.

The Red Sea is a sea that grows in size because it is widening all the time. The rate of the widening is 1.25 centimeters per year, so it is not something that can be easily seen during a normal human lifespan, but over a longer period of time it will have a much different shape, size, and influence in the region. It is located between the African and the Arabian tectonic plates as an elongated thin sea with a northwest-southeast direction.

The widening of the Red Sea is due to the movement of the tectonic plates. Africa is moving towards northwest, and that makes it slowly distance itself from the Arabian plate, thus opening more space for the Red Sea.

In order for the Red Sea to widen another 812.5 centimeters, will be required 650 years, and we can come to the result by simple dividing the required number of the width with the annual widening.

812.5 / 1.25 = 650.

7 0
3 years ago
Read 2 more answers
How is a solute different from a solvent in a solution?
kotegsom [21]
A solution<span> is basically two substances that are mixed together.</span><span>. A </span>solute<span> is the substance to be dissolved (sugar). The </span>solvent<span> is the one doing the dissolving (water)     Hoped i helped :D</span>
5 0
2 years ago
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Is the answer B or D , Help !
Alex

The NADPH contributions Electrons to the cycle

6 0
2 years ago
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