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galina1969 [7]
2 years ago
15

Which indicator would show a pH change from 6 to 7?

Chemistry
1 answer:
tatyana61 [14]2 years ago
7 0

Answer:

c

Explanation:

1. litmus paper is used when showing a change between a greater range in ph levels - so A and D are automatically a no.

2. methyl red is used to show a range in ph levels between 4.8-6

3. Option C is the only one left so im going to assume its C because its definitely not A, B, or D

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What is the percentage composition when 10g of magnesium combines with 4g of nitrogen?
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The %  composition   when 10g of magnesium combine   with  4g of   nitrogen  is  71.43%   magnesium   and  28.57 %  nitrogen

               calculation

%
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%   composition for  magnesium  is therefore  =  10/14  x100 = 71.43 %

%  
composition  for  nitrogen  is therefore = 4 /14  x100  =   28.57 %
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