Advertisements
Advertisements
Question
Is Photosynthesis an endothermic reaction or an exothermic reaction?
Advertisements
Solution
Photosynthesis: Endothermic reaction
Photosynthesis occurs by absorbing light energy from sunlight.
APPEARS IN
RELATED QUESTIONS
Balance the given equation:
NH3 + CuO 
Cu +N2 +H2O
Balance the gievn equation:
NaOH + H2SO4 
Na2SO4 + H2O
Substitute formulae for names and balance the following equation:
Calcium carbonate reacts with hydrochloric acid to produce calcium chloride, water and carbon dioxide gas.
Write a balanced chemical equation for the process of photosynthesis giving the physical states of all the substances involved and the conditions of the reaction.
Write your observations and name the product when
Iron nails are added to an aqueous solution of copper sulphate.
Write word equation for the following skeletal equation:
\[\ce{Na + O2 -> Na2O}\]
Write symbolic representation for the following word equation and balance them :
Calcium oxide + Water → Calcium hydroxide
Balance the following equation. Also name the product formed.
PbCO3 → PbO +CO2
What do the following symbol stand for?
2H2
Name the fundamental law that is involved in every equation.
Write the balanced chemical equation of the following reaction.
potassium bicarbonate + sulphuric acid → potassium sulphate + carbon dioxide + water
Write the balanced chemical equation of the following reaction.
Potassium permanganate + hydrochloric acid → potassium chloride + manganese chloride + chlorine + water
Complete the following blank in the equation as indicated.
\[\ce{CaH2_{(s)} + 2H2O_{( aq)}-> Ca(OH)2_{(s)} + 2H2_{(g)}}\]
Moles: 1 mole + ______ `→` ______ + ______
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate moles of acid required.
A student mixes sodium sulphate powder in barium chloride powder. What change would the student observe on mixing the two powders? Justify your answer and explain how he can obtain the desired change.
In certain reaction a change of state is observed i.e. solid to liquid, liquid to gas etc. – State the change of state of the products – to give the respective reactant.
NH3 + HCl ⇌ NH4Cl
Name the following:
A catalyst which increases the rate of a chemical reaction.
Balance the following simple equation:
KBr + Cl2 → KCl + Br2
Which of the following are exothermic processes?
- Reaction of water with quick lime
- Dilution of an acid
- Evaporation of water
- Sublimation of camphor (crystals)
