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3 years ago

8

Cassady? you there ?

2 answers:

iren [92.7K]3 years ago

8 0

Answer:

who da hell is cassady?

Explanation:

mash [69]3 years ago

5 0

Who is Cassady my dude are you talking about a quesadilla

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The combustion reaction of propane is described by the reaction. c3h8 5o2 → 4h2o 3co2. how many moles of o2 are required to gene

dmitriy555 [2]

C₃H₈   + 5 O₂ → 4 H₂O + 3 CO₂

mole ratio based on balance equation of O₂   : CO₂ i s 5 : 3
C₃H₈   +   5 O₂ →   4 H₂O   +   3 CO₂

∴ if moles of CO₂ = 3 moles

then moles of O₂ = (3 moles ÷ 3) × 5

= <span>5 moles </span>

7 0

3 years ago

Read 2 more answers

According to Boyle's law, for a fixed quantity of gas at a given temperature, what quantity relating pressure P and volume V is

yan [13]

<u>Answer:</u> The quantity relating pressure and volume is $PV=k$ and the size of the tank must be $1.92\times 10^3L$

<u>Explanation:</u>

To calculate the new volume, we use the equation given by Boyle's law. This law states that pressure is inversely proportional to the volume of the gas at constant temperature.

Mathematically,

$P\propto \frac{1}{V}$

Or,

$PV=k$

The equation given by this law is:

$P_1V_1=P_2V_2$

where,

$P_1\text{ and }V_1$ are initial pressure and volume.

$P_2\text{ and }V_2$ are final pressure and volume.

We are given:

$P_1=160atm\\V_1=12L\\P_2=1atm\\V_2=?L$

Putting values in above equation, we get:

$160atm\times 12L=1atm\times V_2\\\\V_2=\frac{160\times 12}{1}=1920L=1.92\times 10^3L$

Hence, the size of the tank must be $1.92\times 10^3L$

7 0

3 years ago

In a hydrogen molecule, the two hydrogen atoms are held together by a single bond with a bond energy of 436 kj/mol of hydrogen.

svetoff [14.1K]

Answer: 873 kJ of energy will be required to break two moles of hydrogen gas.

$2H_2+O_2\rightarrow 2H_2O$

Above chemical equation shows that two moles of hydrogen gas is reacting with one mole of oxygen gas to give two mole of water molecule.

Bond energy of H-H = 436kJ

According to reaction we have two moles hydrogen,so energy required to break the

H-H bond in two moles of hydrogen gas will be:

$2\times \text{bond energy of H-H bond}$

$2\times {436}$ = 872kJ

872kJ of energy will be required to break H-H bond in two moles of hydrogen gas.

5 0

3 years ago

Read 2 more answers

What makes the color of a fire work

exis [7]

Answer:

The use of metal salts. some of the compound produce intense colors when they are burned

4 0

3 years ago

How many halogenation products can ch4 have with cl2?.

Pavel [41]

Answer:

4

Explanation:

3 0

2 years ago