Chemistry
What are proteins that help speed up chemical reactions called?
Reveal Answer
What element was discovered as a component of the debris of the first hydrogen bomb explosion?
Reveal Answer
What is a method to indicate reactants and products of a chemical reaction using chemical formulas?
Reveal Answer
What three components are needed in order to produce fire?
Reveal Answer
Berkelium on the periodic table is noted by which symbol?
Reveal Answer
What is a substance made from only one type of atom called?
Reveal Answer
Which of these would be used to measure the volume of liquid in a glass?
Reveal Answer
What periodic table group has some properties in common with metals and some in common with non-metals?
Reveal Answer
Which of these items will float in a glass of water?
Reveal Answer
What energy is stored in the form of chemical compounds?
Reveal Answer
What is the symbol used on the periodic table for the element Protactinium?
Reveal Answer
What is the unit defined as the energy needed to raise one gram of water by 1 degree Celsius?
Reveal Answer
What element does hydrogen combine with to make the compound water?
Reveal Answer
What is often used in advertising signs and produces a bright reddish-orange light?
Reveal Answer