All categories

3 years ago

H2O and C6H12O6 are examples of ______

Chemistry

1 answer:

ruslelena [56]3 years ago

4 0

Compounds. They both have more than one element in them

You might be interested in

What words come to mind when you hear the word Philosophy?

Sergio [31]

Answer:

Wisdom

Explanation:

3 0

3 years ago

Read 2 more answers

How many moles of hydrogen gas are needed to produce 20 grams of hydrochloric acid (HCl)?

Charra [1.4K]

Answer:

0.27 mole

Explanation:

Data given:

mass of hydrochloric acid (HCl) = 20 g

moles of hydrogen (H₂O) = ?

Solution:

First we look to the reaction in which hydrogen react with Chlorine and make hydrochloric acid (HCl)

Reaction:

H₂ + Cl₂ -----------> 2HCl

Now look at the reaction for mole ratio

H₂ + Cl₂ -----------> 2HCl

1 mole 2 mole

So it is 1:2 mole ratio of hydrogen to hydrochloric acid (HCl)

As we Know

molar mass of H₂ = 2(1) = 2 g/mol

molar mass of HCl = 1 + 35.5 = 36.5 g/mol

Now convert moles to gram

H₂ + Cl₂ -----------> 2HCl

1 mole (2 g/mol) 2 mole (36.5 g/mol)

2 g 73 g

So,

we come to know that 2 g of hydrogen gives 73 g of hydrochloric acid (HCl) then how many grams of hydrogen will be required to produce 20 grams of hydrochloric acid (HCl).

Apply unity formula

2 g of H₂ ≅ 73 g of HCl

X g of H₂ ≅ 20 g of HCl

Do cross multiplication

X of H₂ = 2 g x 20 g / 73 g

X of H₂ = 0.55 g

Now convert grams of H₂ into moles

No. of moles = mass in grams/molar mass

Put values in above formula

No. of moles = 0.55 g / 2 (g/mol)

No. of moles = 0.27 mol

0.27 mole of hydrogen needed to produce 20 gram of hydrochloric acid (HCl).

7 0

3 years ago

Metals are easy to bend beacuse

-BARSIC- [3]

Since metals are malleable they are able to be bent and shaped.

5 0

4 years ago

Read 2 more answers

Significant factors of (9.9 x 10^4) + (4.88 x 10^2) + (7.60 x 10^3) = ______

Arisa [49]

Answer:

gurjfvdtshhjjgeghoogzgb buugdxcjknvdehooncdevkon

Explanation:

ccehjllgrt kloxq humk

3 0

3 years ago

A woman with diagnosed osteoporosis is told by her doctor to take 1,000 mg of calcium carbonate in addition to increasing intake

spayn [35]

Answer:

400 mg

Explanation:

Given:

A woman with is told by her doctor to take 1,000 mg of calcium carbonate.

Question asked:

How many mg of calcium are in this 1,000 mg regimen of calcium carbonate?

Solution:

As we know:

<em>Amount of elemental calcium in a medicine containing calcium carbonate = 40%</em>

As here doctor prescribed 1000 mg of calcium carbonate to be taken by the woman increasing intake of calcium-containing foods in her diet and including regular weight-bearing exercise, hence amount of elemental calcium in 1,000 mg regimen of calcium carbonate will be,

$40\%\ of\ 1000\ mg\\\frac{40}{100} \times1000\ mg\\\frac{40000}{100} = 400\ mg$

Therefore, 400 mg of calcium are in this 1,000 mg regimen of calcium carbonate.

6 0

4 years ago