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Mice21 [21]
3 years ago
8

If the quantity of reactants used in a chemical reaction increase, then the quantity of the products produced will also be incre

ased. This is because
Chemistry
1 answer:
oksian1 [2.3K]3 years ago
4 0

Answer:

the amount of reactants is always directly proportional to the product

Explanation:

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If 0.600mol of chloride gas reacted with 0.500mol of aluminium metal to produce aluminium chloride,which reactant is in excess?h
Rus_ich [418]

Answer:

The balanced chemical equation: 2 Al + 3Cl2→ 2 AlCl3

Mole-mole relationship: 2 moles Al + 3 moles Cl2→ 2 moles AlCl3

Given: 0.600 moleCl2; 0.500 mole Al

Required: Excess reactant___; Number of moles of AlCl3 produced__

Solution: Use dimensional analysis using the mole-mole rel

0.600 mole Cl2 * 2 moles Al/3 moles Cl2 = 0.4 mole Al

0.5 mole Al* 3 moles Cl2/2 moles Al = 0.75 mole Cl2

Based on the given:

0.6mole Cl2 + 0.4 mole Al ( this is possible based on the given)

0.5mole Al + 0.75 mole Cl2 (this is not possible because the given is only 0.600 mole of Cl 2)

Answer: Excess reactant is Al; Limiting reactant is Cl2

The amount of AlCl3 produced = 0.6 mole Cl2 + 0.4 mole Al = 1.0 mole AlCl3

4 0
3 years ago
Glaciers are agents of deposition and erosion. When we talk about glacial erosion, we consider both the erosion processes and th
const2013 [10]
I think it is B

Explained answer:
Glaciers dissolve and melt because they are made out of ice
7 0
3 years ago
A substance is a good conductor of electricity. Which of the following best explains the probable position of the substance in t
Mariana [72]

Answer: Option (A) is the correct answer.

Explanation:

Elements present in group 1 are known as alkali metals. Whereas elements present in group 2 are called alkaline earth metals and elements from group 11 to 12 are transition metals.

As it is known that metals have the ability to lose electrons in order to attain stability and electricity is the flow of electrons from one point to another.

Therefore, metals are good conductors of heat and electricity.

Thus, we can conclude that the statement it’s between groups 1 to 12 because it is metal best explains the probable position of the substance in the periodic table.

6 0
3 years ago
Read 2 more answers
Identify which one of the three methods of analysis (i.e., TLC, IR and melting point) provides information about the structure o
Alex787 [66]

Answer:

IR provides structural information about a molecule. TLC and melting point analysis do not provide structural information.

Explanation:

IR gives information about the functional groups present in a molecule. The vibrational frequency of each functional group gives information about the structure of the entire molecule.

Structural features of a molecule are deduced by matching the vibrational frequencies of  groups obtained from the IR spectroscopy with that of known functional groups in literature.

Melting point is a qualitative method that can only yield information about the identity of a compound and not its structure. Each compound has its unique melting point recorded in literature and any pure sample of the same compound must have the same sharp meting point.

Thin-layer chromatography (TLC) is a chromatography technique used to separate non-volatile mixtures. After separating the components of the mixture, it does not give any information regarding the identity or the structure  of the components of the mixture.

Therefore, only IR yields structural information about a sample.

6 0
2 years ago
A 12.45 g piece of metal at 99.4 o C is placed into 100.0 g of water at 22.0 o C. If the final temperature of the water is 29.5
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