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4 years ago

How to write a balanced net ionic equation for each reaction

1 answer:

7 0

1. Pb2+ (aq) + SO42- (aq) = PbSO4 (s)

2 .Pb2+ (aq) + 2 Cl- (aq) = PbCl2 (s)

3 .PO43- (aq) + Fe3+ (aq) = FePO4 (s)

4 S2- (aq) + Co2+ ( aq) = CoS (s)

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A weather balloon is filled with helium that occupies a volume of 3.93 104 L at 0.995 atm and 32.0°C. After it is released, it r

user100 [1]

Answer: Thus the volume of the balloon at that new location is $4.65\times 10^4L$

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1$ = initial pressure of gas = 0.995 atm

$P_2$ = final pressure of gas = 0.720 atm

$V_1$ = initial volume of gas = $3.93\times 10^4L$

$V_2$ = final volume of gas = ?

$T_1$ = initial temperature of gas = $32.0^oC=273+32.0=305.0K$

$T_2$ = final temperature of gas = $-11.7^oC=273-11.7=261.3K$

Now put all the given values in the above equation, we get:

$\frac{0.995\times 3.93\times 10^4}{305.0}=\frac{0.720\times V_2}{261.3}$

$V_2=4.65\times 10^4L$

Thus the volume of the balloon at that new location is $4.65\times 10^4L$

4 0

3 years ago

85.4 g of chlorine reacts completely according to the following reaction: P4 (s) + 6 Cl2, (g) 4PC13 (I)

uysha [10]

Explanation:

hope the picture make sense :)

5 0

3 years ago

2_PCl3 + __Cl2 → __PCL5 What is the answer

bekas [8.4K]

Answer: 2 PCl3 + 2 Cl2 > 2 PCl5

Explanation: The factors will be 2 moles of PCl3 reacted to 2 moles of chlorine gas Cl2 and the reaction will produce 2 moles of Phosphorous pentachloride PCl5.

For the reactants 2PCl3 +2 Cl2 there will be 2P, Cl (2x3) +

(2x2) so chlorine will have 10. In the product side 2PCl5. 2 P and Cl will have (5x2)=10.

The chemical reaction will have a balance chemical equation.

3 0

4 years ago

What does the graph of data from the Moana Loa lab indicate about the level of CO2 in the atmosphere in 1960 compared to the pre

lawyer [7]

I don't know the answer honestly

Explanation:

cuz like why

3 0

3 years ago

What happens to the grass molecules when it is eaten by the zebra?

Lubov Fominskaja [6]

Answer:

read below

Explanation:

When the zebra eats grass, it gets energy from the sun that has been stored in the grass. Similarly, the lion obtains energy stored in the zebra. The zebra and lion both obtain the sun's energy indirectly from the energy that the grass obtained through photosynthesis.

3 0

3 years ago

Read 2 more answers