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valina [46]
3 years ago
15

Which one of these is an element carbon carbon dioxide air water

Chemistry
1 answer:
Eddi Din [679]3 years ago
8 0
Carbon is an element.
Carbon dioxide is a compound
air is a mixture
water can be both a compound/mixture depending on the type
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What do these elements make:<br> neodymium, rhenium and sulfur
LiRa [457]

Answer:

Neodymium makes flints inside of lighters. It also takes away the green color off of glass. Rhenium is added with tungsten and molybdenum which makes filaments for lamps. Sulfur makes sulfuric acid which makes batteries and cleaners and can process ores.

Explanation:

An interesting fact for each element:

Neodymium is known for the atomic symbol Nd and the atomic number 60.

Rhenium is known for the atomic symbol Re and the atomic number 75.

Sulfur is known for the atomic symbol S and the atomic number 16.

I hope the Answer answers your question. I gave you some facts to remember those elements in the periodic table!

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2 years ago
Blank and blank are examples of solids
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A box and a laptop are both examples of solids


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The magnetic field of an object exerts a force on any magnetic object around it.
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3 0
2 years ago
Read 2 more answers
Write an equation to show how perchloric acid, HClO4, reacts with water. Include states of matter in your answer. Click in the a
BARSIC [14]

Answer:

HClO4(aq) + H2O(l) ⇄ H3O+(aq) + ClO4-(aq)

Explanation:

When an acid dissolves in water, it will produce hydronium ion, H3O+ as the only positive ion.

perchloric acid, HClO4, being an acid will react with water, H2O to produce hydronium ion, H3O+ as shown below:

HClO4(aq) + H2O(l) ⇄ H3O+(aq) + ClO4-(aq)

8 0
3 years ago
explain why benzoic acid is insolube in water at room temperature but is soluble in 2.5M NaOH solution
Alik [6]

Answer:

It is known generally that polar compounds are soluble in polar solvents. Based on the structure of benzoic acid, it comprises the non-polar C6H6 group and polar COOH group. Based on the structure, in benzoic acid, the nonpolar hydrocarbon outweighs and influences the polar part as nonpolar, due to which benzoic acid is not soluble in water.

On the other hand, benzoic acid produces sodium salt benzoic acid when it reacts with 2.5 M sodium hydroxide, this salt is ionic. Generally, the ionic compounds are soluble in water. Therefore, the salt of benzoic acid gets dissolved in water. Hence, benzoic acid is soluble in the solution of sodium hydroxide.

6 0
2 years ago
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