Answers: 1
Chemistry, 22.06.2019 08:00
Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.
Answers: 2
Chemistry, 23.06.2019 04:10
Two solids are mixed in a flask and stirred. after a few minutes, the flask becomes cold. which of the following best describes this reaction? a. an exothermic reaction b. a combustion reaction c. an endothermic reaction d. a decomposition reaction
Answers: 1
Chemistry, 23.06.2019 15:30
How many grams of c3h8 is needed in the reactants to produce 10.5 mil of h2o
Answers: 2
Chemistry, 23.06.2019 17:20
Which determines the state of matter for any material? a. the size of the atoms b. the hardness of the material c. the behavior of the molecules d. the weight of the material b. fixed volume, takes the shape of its container c. completely fills its container, definite shape d. completely fills its container, takes the shape of its container
Answers: 1
Which unit is used to express the pressure of a gas?...
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