Suppose 20 grams of a water-soluble solid is dissolved in on liter of water. The molar mass of the solid is 100 g/mol. Which methods will probably produce a 0.2 M solution the fastest? 1. placing 20 grams of powder in hot water and then stirring. 2. Placing 100 grams of small crystals in warm water and the stirring. C. Placing 100 grams of powder in ice water and then stirring. D. Placing 20 grams of large crystals in hot water and then stirring.

Oxidation-reduction reactions (often called "redox" for short) are reactions that involve the transfer of electrons from one species to another. oxidation states, or oxidation numbers, allow chemists to keep track of these electron transfers. in general, one element will lose electrons (oxidation), with the result that it will increase in oxidation number, and another element will gain electrons (reduction), thereby decreasing in oxidation number. the species that is oxidized is called the reducing agent or reductant. the species that is reduced is called the oxidizing agent or oxidant. to sum up: oxidation = increase in oxidation state = loss of electrons = reducing agent reduction = decrease in oxidation state = gain of electrons = oxidizing agent part a which element is oxidized in this reaction? fe2o3+3co→2fe+3co2 enter the elemental symbol. view available hint(s) is oxidized part b which element is reduced in this reaction? 2hcl+2kmno4+3h2c2o4→6co2+2mno2+2kcl+4h2o enter the elemental symbol. view available hint(s) is reduced

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

Which property of water causes water drops to bead on a freshly waxed car?