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Anastasy [175]
3 years ago
5

In a solution limits is blue. The pH of the solution could _____

Chemistry
1 answer:
kozerog [31]3 years ago
4 0

Answer:

The pH of the solution could 10

Explanation:

hope it helps you

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In the reaction 4Al+_O2→2Al2O3 , what coefficient should be placed in front of the o2 to balance the reaction?​
deff fn [24]

Answer:

yeep the answer is 3... i just took the k12 test rn

7 0
3 years ago
Read 2 more answers
Please help me thank you :)
LenaWriter [7]

Answer:

D. 3220

Explanation:

1 km equals 1000 m, so 3.22 km is

3220 m

5 0
3 years ago
Read 2 more answers
FIRST ANSWER = BRAINLIEST
STALIN [3.7K]

A_{r} = 24.3

The average atomic mass of X is the <em>weighted average</em> of the atomic masses of its isotopes.  

We multiply the atomic mass of each isotope by a number representing its <em>relative importance</em> (i.e., its % abundance).  

Thus,  

0.790 × 24 u = 18.96 u

0.100 × 25 u =   2.50 u

0.110 × 26 u =    <u>2.86 u</u>  

       TOTAL =  24.3   u

∴ The relative atomic mass of X is 24.3.


5 0
2 years ago
A base has Kb of 2.5 x 10-11. which of the following statements is true?(1 point)
Furkat [3]
I disagree with the answer pick of D. If you have a neutral pH 7 solution and you proceed to add a base even with an relatively insignificantly low Kb your solution would still be more basic then acidic. The answer should be b which is true that the base only ionizes slightly in aqueous solution. This is also truer to the definition of what Kb represents.
3 0
3 years ago
MULTIPLE CHOICE
Flauer [41]

Answer:

its very simple ans we have 2 just multiply256

6 0
3 years ago
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