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Ray Of Light [21]
2 years ago
14

How is polypropylene commonly used?

Chemistry
1 answer:
Naily [24]2 years ago
8 0
In its fibre form, polypropylene uses are not limited to not only useful for tote bags but also encompass a much wider range of other products, including ropes, twine, tape, carpets, upholstery, clothing and camping equipment.
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What volume of water can be boiled by 3.0 kJ of energy? (Refer to table of
klio [65]

Answer: 3.0 kJ × 1 mol/40.65 kJ× 18.02 g/mol × 1 mL/1 g= 1.3 mL

5 0
3 years ago
Which best describes a hydrate?
Fofino [41]

Answer:

d

Explanation:

i did it

8 0
3 years ago
Read 2 more answers
Calculate the molar mass of aluminum oxide (Al2O3). Express your answer to four significant figures.
a_sh-v [17]

Answer:

102.0 g/mol.

Explanation:

Aluminum oxide  or Al2O3 is a chemical compound composed of 3 Oxygen and 2 aluminum atoms. Naturally, it is present in the form of mineral corundum in crystalline polymorphic forms. It holds significant importance in the preparation of Aluminium metal that is used as a refractory material.

To calculate the molar mass of Aluminum oxide, we will add the molar mass of 2 Al and 3 O atoms.

                         Since molar mass of Al is: 26.98 g

                               Molar mass of O is: 16.00 g

                                   Molar mass of Al2O3

                                  =   (26.98)2 +  (16.00) 3

                                     =    53.96 +   48

                                       = 101.96 g/mol

Since it is mentioned in question to round off the answer upto 4 significant figures, it will make the answer: 102.0 g/mol.

Hope it help!

6 0
3 years ago
How many valence electrons do transition metals have?
alukav5142 [94]
The group/family number is the same number of valance electrons.
4 0
3 years ago
Write any four limitations of a balanced chemical equation.​
Valentin [98]

Answer:

1. The physical states of the reactants and products.

2. The concentration of the reactants and products.

3. The conditions such as temperature, pressure or catalyst etc which affect the reaction.

4. The heat changes accompanying the reaction i.e. whether heat is evolved or absorbed during the reaction.

Explanation:

Hope it helps! ^w^

3 0
3 years ago
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