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3 years ago

Identify the missing coefficient in the balanced equation and classify the type of reaction. _____C3H8 + 5O2 ⟶ 3CO2 + 4H2O

Chemistry

2 answers:

Vsevolod [243]3 years ago

6 0

Combustion reaction

Rashid [163]3 years ago

4 0

Answer : The missing coefficient in the balanced equation is, 1 and this is a type of combustion reaction.

Explanation :

Law of conservation of matter : It states that the number of atoms of each element present of the reactant side must be equal to the product side.

The given chemical reaction is,

$1C_3H_8+5O_2\rightarrow 3CO_2+4H_2O$

The given chemical reaction is balanced.

By the stoichiometry we can say that, 1 moles of propane react with 5 moles of oxygen to give 3 moles of carbon dioxide and 4 moles of water.

The given reaction is a combustion reaction.

Combustion reaction : it is a reaction in which the a hydrocarbon react with the oxygen to give carbon dioxide and water as a product.

Hence, the missing coefficient in the balanced equation is, 1 and this is a type of combustion reaction.

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2.00 L of 0.800 M NaNO3 must be prepared from a solution known to be 2.50 M in concentration.How many mL are required? Plus don'

Morgarella [4.7K]

Answer:

1.36 × 10³ mL of water.

Explanation:

We can utilize the dilution equation. Recall that:

$\displaystyle M_1V_1= M_2V_2$

Where M represents molarity and V represents volume.

Let the initial concentration and unknown volume be M₁ and V₁, respectively. Let the final concentration and required volume be M₂ and V₂, respectively. Solve for V₁:

$\displaystyle \begin{aligned} (2.50\text{ M})V_1 &= (0.800\text{ M})(2.00\text{ L}) \\ \\ V_1 & = 0.640\text{ L} \end{aligned}$

Therefore, we can begin with 0.640 L of the 2.50 M solution and add enough distilled water to dilute the solution to 2.00 L. The required amount of water is thus:
$\displaystyle 2.00\text{ L} - 0.640\text{ L} = 1.36\text{ L}$

Convert this value to mL:
$\displaystyle 1.36\text{ L} \cdot \frac{1000\text{ mL}}{1\text{ L}} = 1.36\times 10^3\text{ mL}$

Therefore, about 1.36 × 10³ mL of water need to be added to the 2.50 M solution.

8 0

2 years ago

A compound contains only nitrogen and oxygen and has a formula mass of 44.02. What is the formula of the compound

ch4aika [34]

N₂O

N = 14.01 amu
O ≈ 16 amu

14.01 × 2 = 28.02 ; 2 Nitrogen

44.02 - 28.02 = 16 ; 1 Oxygen

Check

28.02 + 16 ≈ 44.02amu

8 0

4 years ago

40 PIONTS!! PLZZZZ HELP

never [62]

Lithium oxide is able to undergo both the processes of dissolution and dissociation.

Dissociation refers to the break down a chemical substance into its constituents. Ionization refers to the loss of electrons from a chemical specie while dissolving refers to the ability of a solid to form a solution.

Let us now look at each of the following species;

Lithium oxide undergoes dissolution and dissociation.
Magnesium nitride undergoes dissolution and dissociation.
Hydrobromic acid undergoes dissolution and dissociation.

Learn more about ionization: brainly.com/question/1602374

8 0

3 years ago

An unknown metal forms a soluble compound, M(NO3)2, which then undergoes electrolysis with an applied current of 2.50 amperes. I

frozen [14]

Answer:

The metal is the cathode

The metal is palladium

At the other cathode, the reaction going on is

M(s) ------> M2^+(aq) + 2e

Chlorine can spontaneously react with Pd converting it to Pd^2+

The molar mass of the metal is 106.4 g of M

Explanation:

Given the formula of the compound, M^2+ ion is involved. The equation of the reaction is;

M^2+(aq) + 2e -------------> M(s)

The number of moles of electrons transferred = 2 moles

1 mole of electron = 96500C

And Q= It

Where I= current

t= time taken in seconds

Now;

x g of the metal (its molar mass) is deposited by 2×96500 C

1.87 g of the metal is deposited by (2.50× 22.6×60) C

x = 1.87 × 2×96500/ 2.50 × 22.6 × 60

x= 360910/3390

x= 106.4 g of M

The metal is the cathode

The metal is palladium

At the other cathode, the reaction going on is

M(s) ------> M2^+(aq) + 2e

Chlorine can spontaneously react with Pd converting it to Pd^2+

7 0

4 years ago

50.mL of water is initially 70.k and cooled to 25.k . What is the thermal energy?

r-ruslan [8.4K]

It is 398 thermal energy

7 0

4 years ago