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jek_recluse [69]
3 years ago
6

1. An electric iron has a

Chemistry
1 answer:
VLD [36.1K]3 years ago
4 0

Explanation:

a) E = P × t

E = 750 × 1 s = 750 J

b) E = P × t

E = 750 × 3s = 2250 J

c) E = P × t

1500 = 750 × t

t = 1500/750

t = 2 s

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Answer:

A chemical reaction in which an uncombined element replaces an element that is part of a compound is called a simple substitution reaction or simple displacement reaction.

Explanation:

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So, in a Single replacement reaction an uncombined element replaces an element.

<u><em>A chemical reaction in which an uncombined element replaces an element that is part of a compound is called a simple substitution reaction or simple displacement reaction.</em></u>

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3 years ago
What happens to a substance when it dissolves​
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Answer:

A solution is made when one substance called the solute "dissolves" into another substance called the solvent.

Explanation:

once it is broken down"dissolves" from bigger pieces it becomes much smaller groups

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3 years ago
How can you distinguish between a solution, colloid, and suspension?
RSB [31]

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solution is clear solution while colloidal is between the solution and suspension. And in suspension particles are suspended.

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<h3>What is Electrovalent bonding?</h3>

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3 years ago
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