Four properties of water are listed. 1. it reacts with halogens to form oxygen gas as one of the products. 2. it is transparent and tasteless in its pure form. 3. it freezes at a temperature of 0 °c and lower. 4. it decomposes to form hydrogen and oxygen. which are the chemical properties of water? a. 1 and 2 b. 1 and 4 c. 2 and 3 d. 3 and 4

In a laboratory determination of the atomic weight of tin, a sample of tin is weighed in a crucible. nitric acid is added, and the reaction proceeds to give a hydrated tin(iv)oxide plus no2and h2o. the hydrated tin(iv)oxide is then heated strongly and reacts as follows: sno2.xh2o(s)sno2(s)+ xh2o(g)the sno2is finally cooled and weighed in the crucible. explain the effect on the calculated atomic weight of tin that would result from each of the following experimental errors: (a)considerable spattering occurs when the nitric acid is added to the tin.(b)the hydrated tin(iv)oxide is not heated sufficiently to change it completely to tin oxide.