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Dennis_Churaev [7]
3 years ago
5

Please look at photo provided and help answer. Due soon please help!!!

Chemistry
1 answer:
saul85 [17]3 years ago
3 0

Answer:

a. 6 mol of oxygen

b. 10 mol of iron(III)oxide

Explanation:

Use mole concept.

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Please help!!! I’ll mark brainlist
Lerok [7]

Explanation:

they are closer and made of gas

8 0
3 years ago
1. Classify each of the following as a homogeneous or heterogeneous substance.
Olegator [25]

a. iron ore  - heterogeneous substance

(it contains a mixture of iron oxides)

b. quartz  - homogeneous substance

(it is the crystalline silicon dioxide SiO₂, which is a very pure form of SiO₂)

c. granite  - heterogeneous substance

(it as mixture of different oxides, mainly aluminium and silicon oxides)

d. energy drink  - heterogeneous substance

(a mixture of water, sugar, carbon dioxide and different substances that may boost concentration, like caffeine)

e. oil-and-vinegar salad dressing  - heterogeneous substance

(this salad dressing of oil and vinegar is composed of unsaturated triglycerides, acetic acid and water)

f. salt  - homogeneous substance

(sodium chloride NaCl)

g. rainwater  - homogeneous substance

(assuming the the atmosphere is clean, it is just pure water H₂O)

h. nitrogen - homogeneous substance

(it is the main component of air and it is a diatomic molecule N₂)

7 0
3 years ago
Read 2 more answers
Please help very urgent! <3
LuckyWell [14K]

Answer:

a) Neutralisation

b) Combustion

c) Synthesis

d) Decomposition

e) Neutralisation

f) Double Displacement Reaction

h) Single Displacement Reaction

i) Double Displacement Reaction

j) Combustion

Explanation:

Synthesis  is a reaction where various compounds/ elements react to form a totally new compound.

Decomposition is a reaction where a single compound breaks down into several components due to excessive heating or energy applied.

Single Displacement Reaction is a type of chemical reaction where an element reacts with a compound and takes the place of another element in that compound.

Double Displacement Reaction is a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products.

Combustion is a reaction where a compound/ element oxidises in the presence of Oxygen.

Neutralisation reaction is a reaction where an acid reacts with a base to form a salt.

5 0
3 years ago
Question 5 (5 points)
Dima020 [189]

Answer:

They Are all O's/oberavtions, because inference is using facts and reasoning, which is not the case here.

Explanation:

6 0
2 years ago
Read 2 more answers
non metals are generally non conductors of electricity. Graphite is non metal but is is used as electrodes in batteries.
expeople1 [14]
Graphite conduct electricity because it contains delocalize election (free election ) the election move through the graphite
4 0
3 years ago
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