Advertisements
Advertisements
Give reason why carbon compounds are generally poor conductors of electricity.
Concept: undefined >> undefined
"Our food grains such as wheat and rice, the vegetables and fruits and even meat are found to contain varying amounts of pesticide residues." State the reason to explain how and why it happens?
Concept: undefined >> undefined
Advertisements
State the reason why carbon can neither form C4+ cations nor C4− anions but forms covalent compounds.
Concept: undefined >> undefined
State the reason to explain why covalent compounds "are bad conductors of electricity".
Concept: undefined >> undefined
State the reason to explain why covalent compounds "have low melting and boiling points."
Concept: undefined >> undefined
Why should a magnesium ribbon be cleaned before it is burnt in air?
Concept: undefined >> undefined
What is a balanced chemical equation? Why should a chemical equation be balanced?
Concept: undefined >> undefined
Balance the chemical equation.
\[\ce{HNO3 +Ca(OH)2 -> Ca(NO3)2 + H2O}\]
Concept: undefined >> undefined
Balance the following chemical equation.
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
Concept: undefined >> undefined
Balance the following chemical equation.
\[\ce{NaCl + AgNO3 -> AgCl + NaNO3}\]
Concept: undefined >> undefined
Balance the following chemical equation.
\[\ce{BaCl2 + H2SO4 -> BaSO4 + HCl}\]
Concept: undefined >> undefined
Translate the following statement into chemical equation and then balance it.
Hydrogen gas combines with nitrogen to form ammonia
Concept: undefined >> undefined
Translate the following statement into chemical equation and then balance it.
Hydrogen sulphide gas burns in the air to give water and sulphur dioxide.
Concept: undefined >> undefined
Translate the following statement into chemical equation and then balance it.
Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.
Concept: undefined >> undefined
Translate the following statement into chemical equation and then balance it.
Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.
Concept: undefined >> undefined
Write the balanced chemical equation for the following reaction.
\[\ce{Barium chloride + Potassium sulphate → Barium sulphate + Potassium chloride}\]
Concept: undefined >> undefined
Write the balanced chemical equation for the following reaction.
\[\ce{Aluminium + Copper chloride -> Aluminium chloride + Copper}\]
Concept: undefined >> undefined
Write the balanced chemical equation for the following reaction.
\[\ce{Zinc + Silver nitrate -> Zinc nitrate + Silver}\]
Concept: undefined >> undefined
Write the balanced chemical equation for the following reaction.
\[\ce{Calcium hydroxide + Carbon dioxide → Calcium carbonate + Water}\]
Concept: undefined >> undefined
What would be the electron dot structure of carbon dioxide which has the formula CO2?
Concept: undefined >> undefined
