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Alexxandr [17]
3 years ago
5

What’s number 5? C7H6O2+02–>CO2+H20

Chemistry
1 answer:
kykrilka [37]3 years ago
3 0

  2C₇ H₆O₂   +  15O₂   →    14CO₂     +     6H₂O

Explanation:

Balancing the chemical equation ensures that reactions are based on the law of conservation of mass.

According to the law, we must ensure that the amount of species on both sides of the equation must be the same.

  The reaction given is a combustion reaction:

        C₇ H₆O₂   +  O₂   →    CO₂     +     H₂O

let us balance this equation using mathematical approach.

          aC₇ H₆O₂   +  bO₂   →    dCO₂     +     eH₂O

a,b,d and e are the coefficients that will balance the equation.

 Conserving C: 7a = d

                     H:  6a = 2e

                     O: 2a + 2b = 2d + e

let a = 1

      d = 7

       e = 3

       b = \frac{15}{2}

multiply through by 2;

  a = 2, b = 15, d = 14, e = 6

        2C₇ H₆O₂   +  15O₂   →    14CO₂     +     6H₂O

learn more:

Balancing equation brainly.com/question/2947744

#learnwithBrainly

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In this task, you’ll observe a chemical reaction between baking soda and vinegar in water. write a hypothesis to predict the rel
Archy [21]

Answer:

Increase in the concentration of the reactants (vinegar and baking soda) leads to an increase in the rate of reaction (more volume of CO2 is evolved within a shorter time)

Explanation:

The chemical reaction between baking soda and vinegar in water is shown in the chemical reaction equation below;

NaHCO3(aq) + CH3COOH(aq) ----->CO2(g) + H2O(l) + CH3COONa(aq)

The chemical name of baking soda is sodium bicarbonate (NaHCO3) while vineager is a dilute acetic acid (CH3COOH) solution. This reaction provides a very easy set up in which we can study the effect of concentration on the rate of chemical reaction.

We must have it behind our minds that increase in the concentration of reactant species increases the rate of chemical reaction. Secondly, the rate of the reaction between baking soda and vinegar can be monitored by observing the volume of CO2 evolved and how quickly it evolves from the reaction mixture.

We can now postulate a hypothesis which states that; 'increase in the concentration of the reactants (vinegar and baking soda) leads to an increase in the rate of reaction (more volume of CO2 is evolved within a shorter time).'

If we go ahead to subject this hypothesis to experimental test, it will be confirmed to be true because a greater volume of CO2 will be evolved within a shorter time as the concentration of the reactants increases.

3 0
4 years ago
What is the concentration of a solution of 10. Moles of copper nitrate in 5.0 liters of solution
Alja [10]

Answer:

10.5

Explanation:

well we added together so thats the result

3 0
3 years ago
What type of reaction is this.... CH2(g)+02(g)
oee [108]

Combustion

Explanation:

This reaction is called a combustion reaction. It is very peculiar to reactions involving hydrocarbons.

In such reactants, oxygen gas is used as a reactant. It combines with fuel usually the hydrocarbon to produce heat and light energy.

For the combustion of most hydrocarbons, water and carbon dioxides are usually the product.

        2CH₂   +   3O₂  →   2CO₂   +  2 H₂O

learn more:

Combustion brainly.com/question/11089002

#learnwithBrainly

6 0
3 years ago
If a dog has a mass of 16.5 kg, what is its mass in the following units? Use scientific notation in all of your answers. (a) Wha
const2013 [10]

Answer:

(a) 16500 grams

(b) 16500000 milligrams

(c) 16500000000 micrograms

8 0
3 years ago
Heart, 5 stars, and Brainiest to first right answer!
erastovalidia [21]

hi have a nice day

will be less than 26 °C as water has a relatively higher specific heat than sand.

Explanation:

The specific heat of a substance is the amount of heat energy absorbed by one unit of mass of the substance when its temperature increases one unit.

From that, you can derive the equation for the specific heat of a substance:

specific heat = heat / (mass × ΔT)

Thus, assuming that all the heat provided by the lamp to both samples is the same and, as given, the amount (mass) of both samples is also the same, you have that the specific heat of the samples will be:

specific heat = constant / ΔT

So, specific heat and ΔT are inversely related.

It is known that water has a higher specific heat than sand (that is why the sand on the shore of a beach is, during the day, hotter than the water and your feet get burned when you walk on a sandy beach on a sunny day

8 0
2 years ago
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