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Verdich [7]
4 years ago
13

X- 5=7 I need help again​

Chemistry
2 answers:
Annette [7]4 years ago
8 0

Answer:

12

Explanation:

12-5=7

Sav [38]4 years ago
3 0
To find “x” you need to add the 5 to the other side of the equal sign so that x is by itself and so ur answer is 12
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Which product is made using bacteria?
I am Lyosha [343]

Answer:

C would be the answer

Explanation:

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3 years ago
according to the law of conservation of , the number of atoms in the products of a chemical and equation must be balanced with t
Len [333]

yes because its kind of like a seesaw if theres too much on one side its unbalance there has to be the same amount of atoms on each side

5 0
3 years ago
328. mL of 0.00345 M NaI (aq) is combined with 703. mL of 0.00802 M Pb(NO3)2 (aq). Determine if a precipitate will form given th
Vsevolod [243]

Answer:

The solution will not form a precipitate.

Explanation:

The Ksp of PbI₂ is:

PbI₂(s) ⇄ 2I⁻(aq) + Pb²⁺(aq)

Ksp = 1.40x10⁻⁸ = [I⁻]²[Pb²⁺] <em>Concentrations in equilibrium</em>

When 328mL of 0.00345M NaI(aq) is combined with 703mL of 0.00802M Pb(NO₃)₂. Molar concentration of I⁻ and Pb²⁺ are:

[I⁻] = 0.00345M × (328mL / (328mL+703mL) =<em> 1.098x10⁻³M</em>

[Pb²⁺] = 0.00802M × (703mL / (328mL+703mL) =<em> 5.469x10⁻³M</em>

<em />

Q = [I⁻]²[Pb²⁺] <em>Concentrations not necessary in equilibrium</em>

If Q = Ksp, the solution is saturated, Q > Ksp, the solution will form a precipitate, if Q < Ksp, the solution is not saturated.

Replacing:

Q = [1.098x10⁻³M]²[5.469x10⁻³M] = 6.59x10⁻⁹

As Q < Ksp, the solution is not saturated and <em>will not form a precipitate</em>.

6 0
3 years ago
When determining the density of a pure liquid or solution the temperature of the sample must be measured what is the density of
Whitepunk [10]
Idk I just need points sorry man
3 0
4 years ago
(My losing emote at the top..)
forsale [732]

Answer:

neutral charge

I hope it's helps you

4 0
3 years ago
Read 2 more answers
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