Choose the number of significant figures indicated. 90

1) which branch of science allow researchers to piece together details about ancient skeletons? 2) how can the clavicle be used to tell age? 3) how do pelvic bones reveal gender? 4) what can isotopes in tooth enamel and bones tells us?

What is one thing NOT impacted by Acid Rain. Granite Metal Limestone

What is the hydronium concentration of a solution with a pH of 3.60

Sodium tripolyphosphate is used in detergents to make them effective in hard water. calculate the oxidation number of phosphorus in na5p3o10. assume that all the phosphorus atoms have the same oxidation number.

What is the main type of weathering in deserts? weathering by organic acids chemical weathering physical weathering

Nonmetal oxides can react with water to form acids. For example, carbon dioxide reacts with water to form carbonic acid: CO2 H2O H2CO3. (1) Write an equation to show how diiodine pentaoxide reacts with water to form an acid. Do not include states.

If atmospheric pressure suddenly changes from 1.00 atm to 0.892 atm at 298 k, how much oxygen will be released from 4.40 l of water in an unsealed container?

Determine the molecular formula for the unknown if the molecular mass is 60.0 amu and the empirical formula is ch2o.

Draw the organic product of the following nucleophilic reaction

How does the energy of the activated complex compare with the energies of reactants and products? select one: a. it is lower than the energy of both reactants and products. b.