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Crazy boy [7]
3 years ago
11

We can use thin layer chromatography to check if Starbuck coffee has caffeine. True False

Chemistry
1 answer:
Katarina [22]3 years ago
5 0

Answer:

false?

Explanation:

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Saltwater _____. has a pH of 10 is mostly used for irrigation and farming can be desalinized and used for drinking is mostly fou
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I think the best statement to fill the blank is that "can be desalinized and used for drinking". The said statement seems the most appropriate one because the pH of saltwater is not 10 but approximately between 7.6 to 8.4. Also, saltwater is not found in glaciers, ice caps and aquifers instead it is freshwater.
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Which option describes the direction of thermal energy transfer in earth's oceans?
BlackZzzverrR [31]

Answer:

Energy is moved from areas of surplus to those of deficit, with warm currents transporting warm water polewards and cold currents taking colder water to lower latitudes. It holds onto this heat for longer than the land does and the ocean currents move this heat around, from the tropics to higher latitudes.

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N2(g) + 3H2-> 2NH3(g) How many grams of ammonia (NH3) can be produced from the reaction of 28.0 g of N2 and 25.0 g of H2?
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Answer:

34 g of NH₃ were produced in the reaction

Explanation:

N₂ (g)   +  3H₂ (g)  →  2NH₃ (g)

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Moles of H₂ → 25g / 2 g/m = 12.5 moles

Clearly, the limiting is the nitrogen.

1 mol of N₂ produced 2 moles of ammonia

So, If I have 1 mol, I'll produce the same amount

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