In which time period did ancient greek philosophers propose that all matter was composed of four fundamental substances: earth, air, water, and wind? 8000 b. c. – 1000 b. c. 1000 b. c. – 450 b. c. 300 b. c. – 1400 a. d. 1774 – 1794 a. d. time period 1 time period 2 time period 3 time period 4 time period 1 time period 2 time period 3 time period 4

Janel’s class studied properties of matter and how matter can change. janel decided she would do an experiment mixing baking soda and vinegar. question: describe the properties of baking soda and vinegar, and explain the changes that janel should see when she mixes the two types of matter. •first, identify the physical state of matter of baking soda. describe another property of baking soda. •next, identify the physical state of matter of vinegar. describe another property of vinegar. •then, explain what janel should see when she mixes the baking soda and vinegar. •describe the states of matter of the new materials that are formed. •explain how janel can be certain a change has occurred. me

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.