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anygoal [31]
3 years ago
11

Does tap water still contain pollutants?

Chemistry
2 answers:
Amanda [17]3 years ago
6 0

Answer:

Yes

Explanation:

lead is the most abundant in tap water

elena55 [62]3 years ago
4 0
Yes, with the most common one, lead
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According to Le Châtelier's principle, how will an increase in concentration of a reactant affect the equilibrium system?
Svetach [21]

Answer:

Shift it toward the products

Explanation:

Imagine this equilibrium:

2A  +  B   ⇄  A₂B

Let's think the expression for Kc:

Kc = [A₂B] / [A]² . [B]

Now, we have this situation:

2A ↑  +  B   ⇄  A₂B

As we are not in equilibrium, we have to think that Kc would decrease.

↓Kc = [A₂B] / [A]² ↑ . [B]

so we have to use Qc (reaction quotient). For this case

Qc < Kc, so the reaction → Product side

We have to make more product to counteract the reagent increase and thus return the system to equilibriumr

3 0
3 years ago
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The density of a solution is 1.18 g/ml. its specific gravity is
DiKsa [7]

Specific gravity = (density of substance)/(density of water)

= (1.18 g/mL)/(1.00 g/mL) = 1.18

8 0
4 years ago
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According to the lab guide, which changes below will you look for in order to test the hypothesis? check all that apply. changes
viktelen [127]

Answer:

All of them are.

Explanation:

8 0
4 years ago
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340 438 g how do I determine the number of significant figures in the measurement?
il63 [147K]
<span>In determining significant figure, always remember the rules:
Zeros place in the beginning and end of a non-zero numbers are not significant
Zeros place in the middle of a non-zero numbers are considered significant.

Therefore, 340 438 grams has 6 significant figures.</span>



3 0
3 years ago
Which of the following is the correct name for N203?
inn [45]

Answer:

d

Explanation:

Nitrogen trioxide = Nitrogen= N2

trioxide = o3

3 0
3 years ago
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