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3 years ago

Please explain the difference between reactants and products in a chemical reaction.

Chemistry

1 answer:

KonstantinChe [14]3 years ago

7 0

Answer

A reactant is a substance that is present at the start of a chemical reaction. These are what breakdown to form products and its always to the right.

A product is a substance that is present at the end of a chemical reaction. These are what are formed after the reactants are broken down, the end result.

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If you can solve both<br> Will mark brainly<br> ASAP

MrRa [10]

Answer:

The main function sis the 2nd one and the substance provides the first 1.

Explanation:

Hope you finish the rest on your own, have fun!

7 0

3 years ago

A fuel-air mixture is placed in a cylinder fitted with a piston. The original volume is 0.310-L. When the mixture is ignited, ga

Soloha48 [4]

Answer:

$V_2=11.35L$

Explanation:

Knowing that the system is at constant pressure, the energy balance is:

$\Delta H=Q-W$

If all the energy (enthalpy of combustion) is transformed into work:

$\Delta H=-W$

Work:

$W=-\int_{V1}^{V2}P*dV$

$W=-P*(V_2-V_1)$

$\Delta H=P*(V_2-V_1)$

Calculating:

$935J=84659 Pa*(V_2-3.1*10^{-4}m^3)$

$V_2=0.0113 m^3=11.35L$

3 0

3 years ago

An aqueous solution of ammonia is found to be basic. This observation can be explained by the net ionic equationHNO3(aq) + H2O(l

jeka57 [31]

Answer:

$NH_3_{(aq)}+H_2O_{(l)}\rightarrow NH_4^+_{(aq)}+OH^-_{(aq)}$

Explanation:

Bases are the species which furnish hydroxide ions in the solution or is capable of forming bonds with electron deficient species as they are electron rich species. When a base accepts a proton, it changes into a acid which is known as its conjugate acid.

Net ionic equation : In the net ionic equations, we are not include the spectator ions in the equations. Only the species which are present in aqueous state dissociate. So, the net ionic equation of aqueous solution of ammonia is shown below as:-

$NH_3_{(aq)}+H_2O_{(l)}\rightarrow NH_4^+_{(aq)}+OH^-_{(aq)}$

6 0

3 years ago

In what way are atoms Of oxygen most different from atoms of nitrogen

xz_007 [3.2K]

Oxygen is diatomic and nitrogen is not

6 0

3 years ago

Given the following chemical equation, if 50.1 grams of silicon dioxide is heated with excess carbon and 32.3 grams of silicon c

aivan3 [116]

Answer:

97%.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

SiO2 (s) + 3C (s) —> SiC(s) + 2CO(g)

Next, we shall determine the mass of SO2 that reacted and the mass of SiC produced from the balanced equation. This is illustrated below:

Molar mass of SiO2 = 28 + (16x2) = 60 g/mol

Mass of SO2 from the balanced equation = 1 x 60 = 60 g

Molar mass of SiC = 28 + 12 = 40 g/mol

Mass of SiC from the balanced equation = 1 x 40 = 40 g.

From the balanced equation above,

60 g of SiO2 reacted to produce 40 g of SiC.

Next, we shall determine the theoretical yield of SiC. This can be obtained as follow:

From the balanced equation above,

60 g of SiO2 reacted to produce 40 g of SiC.

Therefore, 50.1 g of SiO2 will react to produce = (50.1 x 40)/60 = 33.4 g of SiC.

Therefore, the theoretical yield of SiC is 33.4 g

Finally, we shall determine the percentage yield of SiC as follow:

Actual yield of SiC = 32.3 g

Theoretical yield of SiC = 33.4 g

Percentage yield =?

Percentage yield = Actual yield /Theoretical yield x 100

Percentage yield = 32.3/33.4 x 100

Percentage yield = 96.7 ≈ 97%

Therefore, the percentage yield of the reaction is 97%.

3 0

3 years ago