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frosja888 [35]
2 years ago
13

What percentage of water do we use for flushing our toilets?.

Chemistry
1 answer:
solong [7]2 years ago
4 0

Answer:

30%

Explanation:

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If Marie and Calvin dissolve 50 grams of KBr in 100 grams of water at 90oC, the solution is
hram777 [196]

Answer:

The solution is 50 %wt

Explanation:

50% wt is a sort of concentration and means, that 50 g of solute (in this case, the potassium bromide) dissolved in 100 g of water.

It is the same to say, that there are 50g of KBr for every 100g of H₂O

8 0
3 years ago
which factor is most responsible for the fact that water is a liquid rather than a gas at room temperature
frosja888 [35]

The answer is Hydrogyn bonding. It keeps the water molocules bonded together and in a liquid state, without it it'd be in a gashious state.

5 0
3 years ago
Read 2 more answers
An 8 oz. bottle of energy drink contains 6.0 g of protein, 2.0 g of fat, and 16.3 g of carbohydrate. The fuel value of this ener
valina [46]

<u>Answer:</u> The correct option is d) 460 kJ

<u>Explanation:</u>

We are given:

Content of fat in energy drink = 2.0 g

Content of protein in energy drink = 6.0 g

Content of carbohydrate in energy drink = 16.3 g

Also,

The fuel value of fat = 38 kJ/g

The fuel value of protein = 17 kJ/g

The fuel value of carbohydrate = 17 kJ/g

So, the fuel value of the energy drink will be:

Total fuel value = (2.0g\times 38 kJ/g)+(6.0g\times 17 kJ/g)+(16.3g\times 17 kJ/g)

Total fuel value = [76+102+277]=460kJ

Hence, the correct option is d) 460 kJ

4 0
3 years ago
When do Metallic bonds form?
Vanyuwa [196]
Metallic bonds<span>, the valence electrons from the s and p orbitals of the interacting metal atoms delocalize</span>
3 0
3 years ago
What is the mass in grams of 2.0 moles of NO2
mote1985 [20]
Use your periodic table to get 1 mol. Look up the atomic masses. I'll round the numbers since every periodic table is different.
 
N = 14
O2 = 2 *16
Total = 30 grams / mol


Therefore 2 mols = twice as much = 60 grams.
4 0
3 years ago
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