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kompoz [17]
3 years ago
8

What do you need to do to get larger sugar crystals? ​

Chemistry
1 answer:
Brilliant_brown [7]3 years ago
5 0
Let the solution cool down really slowly, don’t disturb it at all.
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2. calcium reacts with oxygen to produce calcium oxide what is the :reactant' :products' and chemical equation" of this problem
earnstyle [38]

Answer:

Calcium reacts with Oxygen to form Calcium Oxide

Explanation:

Reactant: Calcium reacts with Oxygen to form Calcium Oxide

Products: Calcium + Oxygen

Chemical equation: Ca + 02> CaO

3 0
2 years ago
How many moles of oxygen are in 52.5 grams of oxygen gas?
adell [148]
An oxygen gas is a diatomic molecule which means that each molecule is composed of 2 atoms. Its symbol is O2. 

Each oxygen atom has a molar mass of 16 g/mol. The molar mass of oxygen gas is calculated below,
                         molar mass = 2 x (16 g/mol) = 32 g/mol

To determine the number of moles in 52.5 grams of oxygen, divide the given mass by the calculated molar mass.
 
                                 n = 52.5 grams / (32 gram/ mol)
                                     n = 1.64 moles

Thus, there are 1.64 moles of oxygen gas. 
3 0
3 years ago
4 Al + 3 O2 --> 2 Al2O3
SIZIF [17.4K]

Answer:

The answer to your question is 7.4 moles of Aluminum

Explanation:

Data

moles of Al = ?

moles of Al₂O₃ = 3.7

Balanced chemical reaction

                4 Al  +  3 O₂  ⇒  2 Al₂O₃

To solve this problem use proportions and cross multiplication. Use the coefficients of the balanced chemical equation.

                4 moles of Aluminum ----------------- 2 moles of Al₂O₃

                 x                                  ----------------- 3.7 moles of Al₂O₃

                            x = (3.7 x 4) / 2

                            x = 14.8 / 2

                            x = 7.4 moles of Aluminum

5 0
3 years ago
Please help me with this chemistry
kobusy [5.1K]

Answer:

57)a)increase

b)increase

c)pressure

58)

7 0
2 years ago
Both the National Fire Academy and Iowa formulas calculate the flow requirement for structures that are __________ percent invol
emmainna [20.7K]

Answer:

100

Explanation:

7 0
2 years ago
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