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anygoal [31]
3 years ago
13

:) hi,can you help me its really easy

Chemistry
1 answer:
yaroslaw [1]3 years ago
3 0
Ultraviolet rays is the answer
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5. (10 Points) Write a synthesis reaction where one of the reactants is aluminum.
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Answer:

A reaction in which two or more reactants combine to form only one product is called a synthesis reaction.

Explanation:

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3 years ago
An electric current is applied to a 1.0 m nai solution. (i) write the balanced oxidation half reaction for the reaction that tak
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1) The balanced oxidation half reaction: 2I⁻(aq) → I₂(s) + 2e⁻.
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2 years ago
Changes in temperature, pressure, and volume affect the behavior of gases more than they affect solids and liquids. ____________
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2 years ago
9 How many grams of O₂ are needed to produce 15.5 g Fe₂O3 in the following reaction? Fe(s) + O₂(g) → Fe₂O3 (s)​
Slav-nsk [51]

Answer:

Explanation:

so u can work out the amount of moles in FeO3 by doing mr of fe3o3 is 55.8*3+16*3=215.4

moles= mass/mr so you do 15.5g/215.4=0.0719 moles

then using 1 to 1 ratio so O2 moles is 0.0719

then use the equation mass=mole*mr

so 0.0719*16=1.15g

hope this make sense :)

8 0
3 years ago
In which of these systems is the entropy decreasing?
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"A <span>gas condensing to a liquid" is the one system among the following choices given in the question where the entropy is decreasing. The correct option among all the options that are given in the question is the fourth option or option "D". I hope that this is the answer that has come to your desired help.</span>
8 0
3 years ago
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