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alexira [117]
3 years ago
10

Which statement about balanced chemical equations is true?

Chemistry
1 answer:
Inessa05 [86]3 years ago
4 0

O B. The total mass of the reactants equals the total mass of the

products.

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Write the equation of the chemical reaction of burning glucose (C6H12O6)​
kotegsom [21]

Answer:

C6H12O6 + 6O2 → 6CO2 + 6H2O.

Explanation:

8 0
3 years ago
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If an element has 3 valence electrons, what charge will likely form on its ion? Hint: It will lose those electrons. What happens
guajiro [1.7K]

Answer:

The answer to your question is: letter A

Explanation:

If an atom lose 3 electrons its charge will be positive, it will be +3

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How do you think the amount of a material affects its tendency to sink or float? <br> ASAP
Ksivusya [100]

Answer:

it dependes on the material

Explanation:

what is the material

3 0
3 years ago
The density of an alcohol is 0.788 g/mL. What volume in microliters, μL, will correspond to a mass of 20.500 mg?
PIT_PIT [208]

Answer:10.500

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7 0
3 years ago
Which equation represents an oxidation-reduction reaction?
bazaltina [42]
In an oxidation-reduction reaction there is an exchange of electrons.


The exchange of electrons implies change in the oxidation states: at least one element increases its oxidation number while other reduces it.


By simple ispection you can predict that in the equation b. there is a change in oxidation states of Cl and Mn.


Now you can check it:


Equation             4H   Cl     +    Mn  O2     ->    Mn  Cl2   + 2H2 O     + Cl2    

oxidation sates   1+  1-             4+   2-              2+   1-         1+   2-         0


The oxidation state of Cl in HCl is 1-  and it changed to 0 in Cl2


The oxidation state of Mn in MnO2 is 4+ and it changed to 2+ in MnCl2 


Answer b.   
3 0
3 years ago
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