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Taya2010 [7]
2 years ago
10

What is the percent of copper in CuS?

Chemistry
1 answer:
bonufazy [111]2 years ago
7 0

Answer:

Element Symbol Mass Percent

Cuprum Cu 66.464%

Sulfur S 33.537%

Explanation:

I got this out of my module, sorry if it's wrong but i am pretty sure 97% this is correct!

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Read the summary below. Choose the answer that BEST fits into the blank to complete the summary.
777dan777 [17]

Answer:

An atom has a nucleus, made up protons and neutrons, which is surrounded by a cloud of electrons.

Explanation:

An atom is the smallest indivisible part of any element that takes place in a chemical reactions.

These are the fundamental building blocks of every element and even compounds.

  • There are three known subatomic particles found within an atom.
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Both protons and neutrons are located within the tiny space called nucleus at the center of an atom.

Electrons moves round in orbitals at the spaces outside of the nucleus.

4 0
2 years ago
HCOOH is:<br> formaldehyde<br> formic acid<br> acetone<br> carbon hydroxide
Svet_ta [14]

Answer: formic acid

Explanation:

HCOOH is the structural formula for the compound commonly known as formic acid.

According to the international union of pure applied chemist (IUPAC), it is named methanoic acid, and represent the first member of the alkanoic acids.

Thus, examples of alkanoic acids are

- formic acid (HCOOH)

- Acetic acid (CH3COOH)

- Propanoic acid (CH3CH2COOH) etc

3 0
2 years ago
A student has two objects. Object 1 has a mass of 28 g and a volume of 12 cubic
bearhunter [10]

Answer:

Object 2 with a density of 0.68

Explanation:

object 2 has a lower density than water so it will float

8 0
2 years ago
How do I find the rate of reaction on a graph
Nonamiya [84]

Rate of reaction can be understood as the rate of change of the materials, such as the rate of depletion of the reactants or the rate of production of products.  Therefore, if a graph of concentration and time is plotted, the rate of reaction is simply the slope of the graph.

3 0
2 years ago
Is this statement true or false?<br><br> Living things are classified by shared characteristics.
RoseWind [281]

Answer:

True!

Explanation:

Living things are classified by the characteristics they have in common. All living organisms are classified within the organization based on extremely fundamental, shared characteristics.

8 0
3 years ago
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