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3 years ago

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Enter the complete ionic equation when Pb(NO3)2 and Na2CO3 are mixed. Express your answer as a complete ionic equation. Identify

all of the phases in your answer. Enter noreaction if no reaction occurs.

1 answer:

RUDIKE [14]3 years ago

3 0

Explanation:

hey jay how've you been . sorry I don't know the answer but I'm taking free points thank you for that really sorry

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How do we get energy from the food we eat?

Nastasia [14]

Answer:

B

Breaking the molecular bonds in the food releases stored chemical energy.

Explanation:

I hope it helps

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3 years ago

Read 2 more answers

If 9.9L of helium are in a tire at 303k,how many liters will be present at 403k if the pressure is held constant.

Slav-nsk [51]

Answer:

Final volume, V2 = 13.18 Liters

Explanation:

<u>Given the following data;</u>

Initial volume = 9.9 L

Initial temperature = 303 K

Final temperature = 403 K

To find the final volume, we would use Charles law;

Charles states that when the pressure of an ideal gas is kept constant, the volume of the gas is directly proportional to the absolute temperature of the gas.

Mathematically, Charles' law is given by the formula;

$VT = K$

$\frac{V_{1}}{T_{1}} = \frac{V_{2}}{T_{2}}$

Where;

V1 and V2 represents the initial and final volumes respectively.
T1 and T2 represents the initial and final temperatures respectively.

$\frac{V1}{T1} = \frac{V2}{T2}$

Making V2 as the subject formula, we have;

$V_{2}= \frac{V1}{T1} * T_{2}$

$V_{2}= \frac{9.9}{303} * 403$

$V_{2}= 0.0327 * 403$

<em>Final volume, V2 = 13.18 Liters</em>

8 0

3 years ago

Someone plz help i need to do this assignment to pass the class

Natalija [7]

Answer:

1)0.2

2)0.72

3)0.01

Explanation:

Formula is 1)454÷2270

2)0.6×1.2

3)8÷800

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2 years ago

One and a half gallons of paint are used on refrigeration units which are then baked dry in a 275F oven for 2 hours. If the pain

brilliants [131]

Answer:

Hence the evaporation rate in pints per minute is 0.001583.

Explanation:

Now,

1.5 gallons of paint are used.

It has 5% solid, so total 95% of 1.5 gallon can evaporate(only the solvent part will evaporate).

95% of 1.5 gallon=(95/100)*1.5 = 1.425 gallons.

1gallon = 8 pints.

So 1.425 gallons=8*1.425 pints

=11.4 pints.

Evaporation requires 2 hours. That is 3600*2 seconds = 7200 seconds.

So evaporation rate= 11.4 pints/7200 seconds.

=0.001583 pints per second

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3 years ago

Draw the structure of a compound with the molecular formula CgH1002 that exhibits the following spectral data.

Gnesinka [82]

Answer:

The answer you are looking for is A

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3 years ago