Which of the following is a property of compounds?

Study the information given below:
1) Some substances are made up of two or more elements combined together chemically.
2) Properties of these substances are different from their constituent elements.
3) These substances cannot be broken down by physical methods.
Which of the following represent the properties listed above?

Study the information given below:
1) Some substances are made up of two or more elements combined together chemically.
2) Properties of these substances are different from the elements that make them.
3) This substance cannot be broken down by physical methods.
Which of the following substance has the properties listed above?

Which of the following are true according to Dalton’s Atomic Theory?

(i) Atoms can neither be created nor destroyed in a chemical reaction.

(ii) Atoms of different elements have different masses and chemical properties.

(iii) Atoms can be broken down into smaller parts like Protons,Electons And Neutons .

(iv) Atoms of an element have variable chemical properties depending on the Chemical reactions

(v) The relative number and kinds of atoms vary in a given compound.

(vi) Atoms combine in the ratio of small whole numbers to form Compounds.