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dexar [7]
4 years ago
10

Which of the following substances would best be measured using mole quantities?

Chemistry
1 answer:
galina1969 [7]4 years ago
4 0
Molecules of water in the ocean
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Whats the simplest mole ratio of Oxygen?​ I'll give brainliest if you can help.
spayn [35]

Answer:

O: 3.41 / 3.41 = 1.00.

Explanation:

To find the simplest whole number ratio, divide each number by the smallest number of moles

3 0
3 years ago
Can this reaction take place/does it exist - . CaCl2+CO2+H20----> CaCO3 + 2HCl
mash [69]
Yes the reaction given above does exist
First of all CaCl2 will react with  water to form CaO  and HCl  then it will react with CO2 to form <span>CaCO3 
</span>CaCO3 + 2HCl <span>>>></span>     CaCl2+CO2+H20
so i conclude it does exist
hope it helps
6 0
4 years ago
What are the cations and anions whose compounds are usually soluble?
HACTEHA [7]

Answer: -

Solubility of a substance depend on the balance of intermolecular forces between the solvent and solute, and the entropy change that accompanies this process.

Temperature and pressure also plays a role in solubility.

A solution having Group 1 cations like lithium, sodium, potassium etc are always soluble.

A solution having NH₄⁺ is soluble.

All salts with anion as nitrates, acetates, chlorates, and perchlorates are soluble in water.

8 0
3 years ago
Which of these events would occur last in a food chain?
PSYCHO15rus [73]
D. An animal decaying after it dies seem to be the right answer hopefully.
4 0
3 years ago
Two tons of water is pumped into a tank 15 ft. High in 5 minutes. Determine the power output of the pump. (Note: One ton is equa
Semmy [17]

Answer:

200 lb•ft/s

Explanation:

From the question given above, the following data were obtained:

Force (F) = 2 tons

Time (t) = 5 mins

Height (h) = 15 ft

Power (P) =?

Next, we shall convert 2 tons to pound. This can be obtained as follow:

1 ton = 2000 lb

Therefore,

2 tons = 2 × 2000

2 tons = 4000 lb

Next, we shall convert 5 mins to seconds. This can be obtained as follow:

1 min = 60 s

Therefore,

5 mins = 5 × 60

5 mins = 300 s

Finally, we shall determine the power of the pump. This can be obtained as follow:

Force (F) = 4000 lb

Time (t) = 300 s

Height (h) = 15 ft

Power (P) =?

P = F × h / t

P = 4000 × 15 / 300

P = 60000 / 300

P = 200 lb•ft/s

Thus, the power of the pump is 200 lb•ft/s

5 0
3 years ago
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