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Dahasolnce [82]
3 years ago
8

1. What net ionic equation describes the reaction between Pb(NO3)2( aq) and N a2CO3( aq) ?

Chemistry
1 answer:
Sphinxa [80]3 years ago
7 0
The answer is C, Pb 2+(aq) + CO3(aq) PBCO3(s)
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Please help 35 points
stealth61 [152]
First one is balanced because all of the elements in reactant and product have equal number of atoms.

second one is not balanced therefore you need to add coefficient to balance it. so its CaCl2 + 2NaHCO3 = CO2 + CaCO3 + H2O + 2NaCl

both of them seem double replacement reaction

Hope it helps!

~ Rabin
4 0
3 years ago
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Julio eats a taco for dinner. What represents a physical change in the taco?
Arturiano [62]
B )teeth tearing off a bite of a taco
5 0
3 years ago
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Convert 0.237 μL to ml
Genrish500 [490]

Answer:

0.000237mL

Explanation:

0.237 x 10^-6L = 0.000000237L = mL

0.000237mL

4 0
3 years ago
In the reaction H2CO3 (aq) + 2NH3 (aq) ? 2NH4+ (aq) + CO32– (aq), which substance is reduced? A. H2CO3 B. NH3 C. NH4 D. CO3 E. N
Ede4ka [16]
Here h2co3 is reduced because it oxidizes nh3
4 0
3 years ago
I need help on this one for an exam real quick please​
gogolik [260]

Answer:

See Explanation

Explanation:

In the first case, when potassium iodide is added to an aqueous bromine solution, a chemical reaction occurs as follows;

Br2(l) + 2 KI(aq) = 2 KBr(aq) + I2(l)

This reaction produces iodine solution which is brown in colour.

Secondly, when potassium iodide is added to aqueous chlorine solution, the following reaction occurs;

2KI(aq) + Cl2(l)→ 2KCl(aq) + I2 (l)

This reaction also yields iodine solution which is brown in colour.

KI(aq) + I2(l) -------->K^+(aq) + I3^-(aq)

The  I3^-(aq) solution appears brown at high concentrations.

8 0
3 years ago
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