Answer:
It's B !
Explanation:
Formulas. The molecular formula for glucose is C6H12O6. This means that there are 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms bonded together to make one molecule of glucose.
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Answer:
Some chemicals react badly to your body, causing a chain of results leading to diseases.
Explanation:
Answer:
48.03
Explanation:
applying the combine law of boyles and charles
The reactants have more energy than the products. If a reaction is EXOthermic, it loses energy during the reaction, so the output (products) will have less energy than the input (reactants).
To calculate ΔH of reaction, let's use the following formula
ΔH of reaction= [ΔH of products] - [ΔH of reactants]
note: keep in mind that you have to multiply each value by its coefficient.
ΔH of reaction= [ ΔH CO2 + ΔH H2O + ΔH Na2CO3] - [ΔH NaHCO3]
ΔH of reaction = [ -393.5 + -241.8 + -1130.9] - [ 2 x -947.7]
ΔH of reaction= 129.2 kJ
since ΔH is positive, the reaction is endothermic