Which of the following is the heaviest?
1kg
1 tg
1 mg
1 ng
1 mg

Which metal exist in liquid state and can be cut with knife ?

In an exothermic reaction, energy may be released to the surroundings in the form of question 4 options: heat light thermal all of the above

Two liquids are poured into a beaker. after a few seconds, the beaker becomes warm. which of the following best describes this reaction? a. an exothermic reaction b. a decomposition reaction c. an endothermic reaction d. a single-displacement reaction