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diamong [38]
3 years ago
6

HELP ME PLZ ITS REALLY IMPORTANT! PLEASE TRY TO DO ALL!!

Chemistry
1 answer:
poizon [28]3 years ago
7 0
1. holding a tray in the cafeteria line
2.
3. joule divided by a second
4. 
5. the force a simple machine applies to an object
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aalyn [17]
Water is always on the move. Rain falling today may have been water in a distant ocean days before. And the water you see in a river or stream may have been snow on a high mountaintop. Water is in the atmosphere, on the land, in the ocean, and underground. It moves from place to place through the water cycle.

Where's the water?

There are about 1.4 billion km3 of water (336 million mi3 of water) on Earth. That includes liquid water in the ocean, lakes, and rivers. It includes frozen water in snow, ice, and glaciers, and water that’s underground in soils and rocks. It includes the water that’s in the atmosphere as clouds and vapor.

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6 0
3 years ago
Which statement about gases is true?
Whitepunk [10]

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A chemical reaction produces 653 550 kj of energy as heat in 142.3min. calculate the rate of energy transferred in kj per minute
miskamm [114]

We have the value of  

Total energy produced in the chemical reaction=653 550 KJ  

Time needed=142.3min  

To calculate the rate of energy transfer, that is the amount of energy produced per minute.  

Rate of energy transfer=\frac{Total energy produced}{Time needed}

=\frac{653 550}{142.3}

=4592.76 KJ min⁻¹

So, the rate of energy transfer is 4592.76 KJ min⁻¹.

6 0
3 years ago
Write chemical equation for solid cadmium carbonate, water, and carbon dioxide
Alchen [17]
I think this is it
Cd(HCO3)2---->CdCO3+H2O+CO2

Sorry if this is wrong
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Which of these choices is a benefit of international trade?
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Fewer option for consumers
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