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Cloud [144]
3 years ago
10

Which of the following elements is the most reactive?

Chemistry
1 answer:
mezya [45]3 years ago
3 0

Answer:

A

Explanation:

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How is a chemical equation different from a chemical formula?
Ivanshal [37]

Answer:

Explanation:

A chemical formula is the combination of atomic symbols that designate a particular chemical compound, or a substance with two or more different elements.  The formula shows which type and how many of each element makes up that specific compound

4 0
3 years ago
Helppp
d1i1m1o1n [39]

Answer:

Medication

Explanation:

These pharmaceuticals can pollute our water and unintentionally expose us to the chemicals in these medications. Recent studies have found that medicines flushed down the drain can contaminate our lakes and streams, which can hurt fish and other aquatic wildlife, and end up in our drinking water.

4 0
2 years ago
If a solution containing 117.63 g of silver chlorate is allowed to react completely with a solution containing 10.23 g of lithiu
GuDViN [60]

Answer:

18.8 g

Explanation:

The equation of the reaction is;

AgClO3(aq) + LiBr(aq)------>LiClO3(aq) + AgBr(s)

Number of moles of AgClO3 = 117.63 g/191.32 g/mol = 0.6 moles

Number of moles of LiBr = 10.23 g/86.845 g/mol  = 0.1 moles

Since the molar ratio is 1:1, LiBr is the limiting reactant

Molar mass of solid AgBr = 187.77 g/mol

Mass of precipitate formed = 0.1 moles * 187.77 g/mol

Mass of precipitate formed = 18.8 g

8 0
3 years ago
The following reaction occurs in a car’s catalytic converter.
blagie [28]

Answer:The correct answer is ;

The oxidation state of nitrogen in NO changes from +2 to 0, and the oxidation state of carbon in CO changes from +2 to +4 as the reaction proceeds.

Explanation:

2NO(g)+2CO(g)\rightarrow N_2(g)+2CO_2(g)

In an oxidation recation addition of oxygen atom takes place or loss of electrons takes place.

In an reduction reaction removal of oxygen atom takes place or gain of electrons takes place.

In the given reaction , the nitrogen atom is present in +2 oxidation state in NO molecule and present in 0 oxidation state in N_2 molecule. Hence, nitrogen is getting reduced that is reduction reaction. NO is oxidizing agent

In the given reaction , the carbon atom is present in +2 oxidation state in CO molecule and present in +4 oxidation state in CO_2 molecule. Hence ,carbon is getting oxidized that is oxidation reaction. CO is a reducing agent.

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Colorful flowers and blueberrie looking ones and the trees
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