dr doe’s chemistry quiz
Which of the following is an example of an exothermic reaction?
Burning wood
Melting ice
Boiling water
Dissolving salt in water
Which of the following is an example of a heterogeneous mixture?
Salad dressing
Saltwater
Air
Granite
Lemonade
Which of the following is an example of an endothermic reaction?
Melting ice
Burning wood
Boiling water
Dissolving salt in water
Which gas is responsible for the characteristic smell of rotten eggs?
Hydrogen sulfide
Carbon monoxide
Oxygen
Methane
{"name":"dr doe’s chemistry quiz", "url":"https://www.quiz-maker.com/Q1KHG6OXB","txt":"What is the chemical symbol for gold?, Which of the following elements is a noble gas?, What is the formula for water?","img":"https://www.quiz-maker.com/3012/images/ogquiz.png"}