CHEMISTRY MIDDLE SCHOOL

What is an example of chemical energy transforming into electrical energy?-wood burning to make a fire
-atoms splitting to make heat which in turn turns a generator to make electricity
-car battery turning a car on
-food making you run

Answers

Answer 1
Answer:

Answer:

A car battery turning a car on.

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Use bond energies to calculate the enthalpy change for the following reaction. H2(g) + CO2(g) ⟶ H2O(g) + CO(g)

please help!!!

Answers

The enthalpy change for the given reaction is 36kJ/mol
Answer is 36kj/mol same question thank you

A scientist formed a theory based on an experiment he conducted. Many years later, researchers studied his experiment to see if there were any possible sources of error. Should the researchers do this?

Answers

The researches could review his experiments and all of his theories to detect any possible flaws. 

What is the speed at which molecules or atoms move dependent on temperature and state of matter.

Answers

The hotter it gets, the faster molecules move, solid form is in low temperature, liquid in medium temperature and gas in high temperature.

Which is an example of an atom?A)the smallest unit of Ne
B)the smallest unit of p4
C)the smallest unit of NH3
D)the smallest unit of H2O

Answers

It is A)The smallest unit of Ne 

Which element has atoms with the strongest attraction for electrons in a chemical bond?(1) chlorine (3) fluorine

(2) nitrogen (4) oxygen

Answers

fluorine by far has the greatest
answer: (3) fluorine...........

Why is the zone of aeration termed as such

Answers

Because it is unsaturated

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What is the layer of the sun from which energy escapes into space?