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2 years ago

Are your knees the elbows of your legs or are your elbows the knees of your

Chemistry

2 answers:

jeyben [28]2 years ago

6 0

Answer:

Both :)

Explanation:

Nimfa-mama [501]2 years ago

5 0

Answer:

Explanation:

it is confusing lol

but i think that it is C.both

hope it helps

have a nice day

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Radio stations identify themselves by their position on the radio dial such as 90.1 and 93.3. This number is based on the number

netineya [11]

<span>D. frequency is the answer</span>

4 0

3 years ago

when copper sulfide is partially roasted in air (reaction with o2), copper sulfite is formed first. subsequently, upon heating,

Lyrx [107]

The question is incomplete, complete question is:

When copper(I) sulfide is partially roasted in air (reaction with oxygen), copper(I) sulfite is formed first. subsequently, upon heating, the copper sulfite thermally decomposes to copper(I) oxide and sulfur dioxide. Write balanced chemical equations for these two reactions.

Answer:

The balanced chemical equations for these two reactions:

$2Cu_2S(s)+3O_2(g)\rightarrow 2Cu_2SO_3(s)$

$Cu_2SO_3(s)\overset{heat}\rightarrow Cu_2O(s)+SO_2(g)$

Explanation:

On partial roasting of copper sulfide in an air. The balanced chemical reaction is given as:

$2Cu_2S(s)+3O_2(g)\rightarrow 2Cu_2SO_3(s)$

On further heating of copper(I) sulfite it get decomposes into copper oxide and sulfur dioxide. The balanced chemical reaction is given as:

$Cu_2SO_3(s)\overset{heat}\rightarrow Cu_2O(s)+SO_2(g)$

5 0

2 years ago

Is calcium and chlorine am Ionic bond? Yes

iren2701 [21]

An ionic compound is made up of two or more metals and non-metals
A covalent compound is made up of two or more non-metals.
Therefore calcium (non-metal) and chlorine(non-metal) make up a covalent compound

3 0

3 years ago

Read 2 more answers

Ayala is making salad dressing. She mixes oil and vinegar in a blender until a smooth consistency is formed. Explain whether thi

nignag [31]

Correct Answer: Mixture will be heterogeneous

Reason:
The mixture is said to be homogenous, if it contains single phase, On other hand, heterogenous system has, multiple phases. When, oil and vinegar are mixed together, on standing, the two liquids separates out as different phases. Hence, the mixture will be refereed as heterogeneous.

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2 years ago

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When chemists write out reactions, they often place numbers to the left of a chemical formula.

guajiro [1.7K]

The number to the left of a chemical formula is called coefficients

Explanation

Coefficient is the number in front of a chemical formula.

It tell how many molecules of a given formula that are involved in a chemical reaction.

in 2H+O→ H2O the coefficient are 2,1,1

that is, 2 in front of H2

1 in front of O

1 in front of H2O

5 0

2 years ago

Read 2 more answers