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Anvisha [2.4K]
1 year ago
13

Approximately how much heat in kj was released from the combustion of the 1-g sample?

Chemistry
1 answer:
Katyanochek1 [597]1 year ago
3 0

Approximately, 21 kJ was released from the combustion of the 1-g sample.

<h3>Define Heat. What is the SI unit of Heat?</h3>

Because heat is a type of energy, the SI unit for heat is also joules (J), which is defined as the quantity of energy required to increase the temperature of a given mass by one degree. This is significant because heat is a form of energy. Heat is the result of the movement of kinetic energy within a material or an item, or from an energy source to a material or an object. Radiation, conduction, and convection are the three mechanisms through which such energy can be transferred. The joule is the S.I. unit for heat.

To learn more about Joule, visit:

brainly.com/question/25982371

#SPJ4

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A chemical equation is shown: C2H4 + O2 → CO2 + H2O According to the law of conservation of mass, how many atoms of oxygen exist
astraxan [27]

Answer:

6 oxygens on the product side

Explanation:

1) balance the equation:

C2H4 + 3O2 → 2CO2 + 2H2O

2) calculate the number of oxygens on the product side

2CO2=4

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What is the solute when stirring salt in water until the salt disappears?
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Answer:

The solute is the substance being dissolved.

The solvent is the substance dissolving the solute.

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Explanation:

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2 years ago
Determine if the bond between each pair of atoms is pure covalent, polar covalent, or ionic. drag the appropriate items to their
dsp73

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If, Electronegativity difference is,

 

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                Between 0.4 and 1.7 then it is Polar Covalent 

            

                Greater than 1.7 then it is Ionic

 

For Br and Br,

                    E.N of Bromine      =   2.96

                    E.N of Bromine      =   2.96

                                                   ________

                    E.N Difference             0.00         (Non Polar/Pure Covalent)

 

For N and O,

                    E.N of Oxygen      =   3.44

                    E.N of Nitrogen     =   3.04

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For P and H,

                    E.N of Hydrogen       =   2.20

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                                                              ________

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For K and O,

                    E.N of Oxygen          =   3.44

                    E.N of Potassium      =   0.82

                                                   ________

                    E.N Difference                2.62              (Ionic)

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the independent variable is the variable that is always changed or manipulated. in this case the skin cream is the independent variable.

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