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Ksju [112]
2 years ago
6

I just need the right answer plz

Chemistry
1 answer:
astraxan [27]2 years ago
5 0

Answer:

-0.5

Explanation:

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HELP! what's the kPa?
Rus_ich [418]

Answer:

50,662.5 kPa

Explanation:

3 0
3 years ago
How many moles of HNO3 are present in 450 g of HNO3?
iVinArrow [24]
Since there are 63.01284 grams to one mole of HNO3, then 12.5 moles would be in 450 grams of it.
6 0
3 years ago
Food molecules contain biochemical energy which is made available by
Juliette [100K]

Food molecules contain biochemical energy which is made available by a process called respiration.

 Respiration is the process within cells by which living things break down food chemicals in their bodies and use them as a source of energy.

The proteins, lipids and polysaccharides that make up most of the food we eat must be broken down into smaller molecules before our cells can use them either as a source of energy or as building blocks for other molecules. This process is named catabolism and occurs in 3 stages.

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Stage 2 is the process of glycolysis where each molecule of glucose is converted to pyruvate.

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4 0
3 years ago
Which metals are called noble metals
Diano4ka-milaya [45]

I don't know if this is multiple choice but if it isn't I can name of few.

Fun Fact: Noble Metals are chemical elements that have outstanding tolerance and resistance to oxidation.

Answer: Palladium, Silver, Platinum, and Gold. Those are all examples of Noble Metals.

Other: Ruthenium, osmium, and rhodium.

<em>Hope this helps!</em>

6 0
3 years ago
A. At STP, what is the volume of 708 mol of nitrogen gas? 708 mol = 708 mol X L B. A sample of hydrogen gas occupies 14.1 L at S
elena-14-01-66 [18.8K]

Answer:

A. 15859.2 L or 15900 L

B. 0.629 mol

Explanation:

At STP, one mole is equal to approximately 22.4 L

L or mL is volume, so you are attempting to solve for L or mL.

A.

708 mol x (22.4 L/1 mol) = 15859.2 L (w/ significant figures included - 15900 L)

B.

(14.1 L) x (1 mole/ 22.4 L) = 0.629 mol.

5 0
2 years ago
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