Which of these is NOT a mixture?

A. hydrogen and oxygen combined to make a molecule of water

B. sugar dissolved in lemon juice

C. toy box full of toys

Which element is most likely to gain electrons in a chemical reaction? 1) Kr 2) Br 3) Ca 4) Ba

Which gases enters ocean water from organisms that photosynthesize? A. carbon B. nitrogen C. hydrogen D. oxygen

Answers for cardiovascular system crossword puzzle

Gracie squeezed some grapes and kept the juice in a vessel for 5 days at room temperature. On the fifth day she found that the juice tasted sour and appeared frothy. What caused this change?

A ion that gains electrons is called what

How are real gases different from ideal gases?

Which one doesnt belong in the list below? A. a meter B. one liter C. One centimeter D. one kilometer

Which elements did curies discover

When rubidium metal is exposed to air, two atoms of rubidium, Rb, combine with one atom of oxygen. If 1.98 grams of rubidium is exposed to air, what will be the mass of the product in grams

Fission reactions can get of of control without what taking place?