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2 years ago

Which is the most accurate description of compounds?

Chemistry

1 answer:

baherus [9]2 years ago

3 0

Answer: c.They have a unique set of properties that can be used as identifiers.

Explanation:

Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.

Compounds can be decomposed into simpler constituents using chemical reactions.

Example: Water $(H_2O)$

$2H_2O\rightarrow 2H_2+O_2$

Compounds have different properties than the elements it is made up of.

Thus the most accurate description of compounds is that they have a unique set of properties that can be used as identifiers.

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Anton van Leeuwenhoek used a microscope to observe

Goshia [24]

B. He was the first person to observe and identify living cells.

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2 years ago

In order to develop ideas for a new tennis racket, a design team visits three different sporting goods stores. What part of the

IrinaVladis [17]

Answer:

Generate concept.

Explanation:

The process of designing includes many processes out of which the process of developing the idea for a new product is called Generate concept.

Product idea( concept) generation is a act that begins with a list of criteria set by the client regarding his necessities and preferences. Based on the criteria, concept generation aims to pinpoint a range of potential ideas and solutions that addresses those needs.

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2 years ago

What is the percentage yield of O2 if 12.3 g of KClO3 (molar mass 123 g) is decomposed to produce 3.2 g of O2 (molar mass 32 g)

My name is Ann [436]

Answer:

The percentage yield of O2 is 66.7%

Explanation:

Reaction for decomposition of potassium chlorate is:

2KClO₃ → 2KCl + 3O₂

The products are potassium chloride and oxygen.

Let's find out the moles of chlorate.

Mass / Molar mass = Moles

12.3 g / 123 g/mol = 0.1 mol

So ratio is 2:3, 2 moles of chlorate produce 3 mol of oxygen.

Then, 0.1 mol of chlorate may produce (0.1 .3)/ 2 = 0.15 moles

Let's convert the moles of produced oxygen, as to find out the theoretical yield.

0.15 mol . 32 g/ 1mol = 4.8 g

To calculate the percentage yield, the formula is

(Produced Yield / Theoretical yield) . 100 =

(3.2g / 4.8g) . 100 = 66.7 %

8 0

3 years ago

When the name of an anion that is part of an acid ends in -ite, the acid name includes the suffix _____.

Marina86 [1]

(B) suffixous

Hope It Helps

3 0

2 years ago

Read 2 more answers

What are 3 things an Apple, Knife and Mirror have in common?

s2008m [1.1K]

1)They are all take up space.
2)They all have mass.
3)They are all solids.

Because of 1 and 2, they are all matter.

7 0

3 years ago