Search questions
Choose which content to search, then combine terms with AND or OR.
Class 11 · Chemistry · Easy
→Nitrogen and oxygen form several oxides. Which law can compare their mass ratios?
Class 11 · Chemistry · Easy
→A report says in (CO) and (CO_2) a fixed mass of carbon combines with different masses of oxygen. Which law applies?
Class 11 · Chemistry · Easy
→In a mixture salt and sand amounts change in every sample. Which law will not be directly applied to it?
Class 11 · Chemistry · Easy
→In two experiments pure (CO_2) samples showed the same carbon and oxygen ratio. Which law is shown?
Class 11 · Chemistry · Easy
→A student performed a reaction in an open beaker and found lower mass because gas escaped. What is the correct conclusion?
Class 11 · Chemistry · Easy
→If A:B is 2:5 in a pure compound and total mass is 35 grams how much is B?
Class 11 · Chemistry · Easy
→If 16 grams reactant gives 10 grams product and 6 grams gas how is conservation of mass shown?
Class 11 · Chemistry · Easy
→In a reaction 9 grams and 11 grams reactants combine. If one product is 13 grams what is the other product?
Class 11 · Chemistry · Easy
→If gaseous volume ratio 4:8:4 is given what is its simplest form?
Class 11 · Chemistry · Easy
→In a gaseous reaction 2 litres gas A and 3 litres gas B form 2 litres gas C. What is the ratio?
Class 11 · Chemistry · Easy
→In which case is the law of definite proportions not broken but the material is identified as a mixture?
Class 11 · Chemistry · Easy
→If a 9 gram compound contains 3 grams A what is the mass of B?
Class 11 · Chemistry · Easy
→If 27 grams of water contains 3 grams of hydrogen, what is the mass of oxygen?
Class 11 · Chemistry · Easy
→According to definite proportions if 18 grams water has 2 grams hydrogen how much oxygen is present?
Class 11 · Chemistry · Easy
→In two compounds 1 gram A combines with 2 grams and 6 grams B. What is the ratio of B?
Class 11 · Chemistry · Easy
→A compound has 11 grams A and 44 grams B. What is simple mass ratio A:B?
Class 11 · Chemistry · Easy
→In a compound A:B is 4:5. If B is 25 grams what is A?
Class 11 · Chemistry · Easy
→If A and B ratio in a compound is 1:4 then how much B is needed for 5 grams A?
Class 11 · Chemistry · Easy
→Which ratio correctly supports the law of multiple proportions?
Class 11 · Chemistry · Easy
→