Question 2/5 Rubidium is a soft, silvory. white metal that has two common isotopes, Rb-85 and Rb-87. If the abundance of Rb-85 is 80.2% and the abundance of Rb-87 is 19.8%, what is the average atomic mass of rubidium?
A. 85.396 amu
B. 86.132 amu
C. 85.590 amu
D. 86.245 amu

Write the formula for the following chemicals. 7. e. trinitrogen tetraoxide a calcium phosphate f. magnesium acetate b. potassium sulfide g nickel(iii) cyanide c carbon dioxide h. silver sulfate d. cobalt(ii) chloride

Show how to convert the temperature 84.7° c to kelvin. include all steps and label the final answer.

Which statement explains which component is likely to be more powerful in explaining a scientific phenomenon? a) component c, because a theory is often passed on possibility and not certainty b) component d, because a hypothesis is often based on possibility not certainty c) component c, because the ability to explain several occurrences in the natural world is a characteristic of a hypothesis d) component d, because the ability to explain several occurrences in the natural world is a characteristic of a theory