The element rubidium forms a with the charge . The symbol for this ion is , and the name is . The number of electrons in this ion is .

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit

Given the following reaction: c3h8+5o2=3co2+4h20 how many grams of co2 will be produced 7 g of c3h8 and 98 g of o2

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %