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densk [106]
3 years ago
7

What is the molecular formula of chalk ?

Chemistry
2 answers:
guapka [62]3 years ago
7 0

Answer:

CaCO3

Explanation:

Hope this helps!

NemiM [27]3 years ago
4 0

Explanation:

Calcium carbonate (Chalk) is a chemical compound, with the chemical formula CaCO3. Calcium carbonate (Chalk) is a chemical compound, with the chemical formula CaCO3.

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denis-greek [22]

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Explanation:

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What is the definition of solution?
Travka [436]
For example <span>in chemistry, a solution is a homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.</span>
5 0
3 years ago
How many grams of glucose are needed to prepare 400. g of a 2.00% (m/m) glucose solution g?
Dominik [7]
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=% m/m =mass  of the solute/mass  of  the  solution  x100

let mass of   solute  be represented  by  y
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 % (m/m) = 2% = 2/100

 grams  of  glucose  is  therefore =2/100 =  y/400
by cross  multiplication

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5 0
3 years ago
Aluminum is often used in the structure of light-weight bicycle frames. How many
Brilliant_brown [7]

Answer:

The first thing that you need to do here is to figure out the mass of the sample.

To do that, you can use its volume and the fact that aluminium is said to have a density of

2.702 g cm

−

3

, which implies that every

1 cm

3

of aluminium has a mass of

2.702 g

.

Explanation:

5 0
3 years ago
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