Water being boiled, because for a chemical change to occur there needs to be at least one new substance formed.
Answer:
The answer to your question is Copper (II) chloride
Explanation:
Data
Limiting reactant = ?
volume of CuCl₂ = 415 ml
[CuCl₂] = 3.0 M
mass of Al = 25 g
Process
1.- Calculate the mass of CuCl₂ in solution
Molarity = moles / volume
moles = Molarity x volume
moles = 3 x 0.415
moles = 1.245
Molar mass of CuCl₂ = 63.5 + (35.5 x 2)
= 63.5 + 71
= 134.5 g
134.5 g ----------------------- 1 mol
x ----------------------- 1.245 moles
x = (1.245 x 134.5)/1
x = 167.5 g of CuCl₂
2.- Balanced chemical reaction
3CuCl₂ + 2 Al ⇒ 2AlCl₃ + 3Cu
3.- Calculate proportions
Theoretical proportion = (3 x 134.5)/(2 x 27) = 403.5/54 = 7.47
Experimental proportion = 167.5 g / 25 g = 6.7
4.- Conclusion
As the experimental proportion was lower than the theoretical proportion the limiting reactant is CuCl₂.
Answer:
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Explanation:
Explanation:
Matter can be categorized into substances and mixtures.
Matter is anything that has mass and occupies spaces.
Substances are distinct matter with the following properties:
- All parts are the same throughout i.e homogeneous
- Their composition is definite
- They cannot be easily separated or broken down into simpler substances by physical means
- Separation by physical means is not easy
- They have a unique set of physical properties.
Mixtures have the following properties:
- Their composition is indefinite i.e they consist of two or more elements and/or compounds in any proportion by mass
- Their constituents retains their identity
- They can easily be separated by physical means
- They have a broad range of physical properties.
Learn more:
Mixtures brainly.com/question/1446244
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Carbon. All organic molecules are hydrocarbons (contain hydrogen and carbon)