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Science: Chemistry 科学:化学
 
从下面选项中选择正确答案;单击“核对答案”按钮,核对你的答案. Your score: 0/6 Your score: 1/6 Your score: 2/6 Your score: 3/6 Your score: 4/6 Your score: 5/6 Your score: 6/6
 
1 : The place where scientists carry out their experiments is called a ___________.

test tube
laboratory
beaker
flask

 
 
2 : When two or more substances change each other, ________ is said to have taken place.

a reaction
an atom
a compound
a solvent

 
 
3 : __________ of water contains hydrogen and oxygen.

An acid
An alloy
A Bunsen burner
A molecule

 
 
4 : A ________ is a liquid containing a dissolved solid.

solution
catalyst
gas
particle

 
 
5 : The periodic table contains all of the ________.

formulas
liquids
elements
solids

 
 
6 : The process of burning can be known as ________.

distillation
stirring
saturation
combustion

 
 

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