5/3if 87.5 percent of a sample of pure 131 i decays in 24 days, what is the half-life of 131 i?

C10H11 + O2 - CO2 + H2O

How would a person on the ground perceive the movement of the ground as each type of seismic waves moved past them

Convert the given amount as noted. 1.51 times 10^24 formula units of Iron (II) hydroxide to grams

Why is concentrated sulphuric acid is weak acid

One mole of propane (c3h8) gas reacts with five moles of oxygen (o2) gas to produce three moles of carbon dioxide gas (co2) and four moles of water gas (h2o).

Which of the following statements about transition metals is true? a. They are never found uncombined in nature. b. They include familiar metals such as gold, silver, copper, and nickel. c.

Elements can be separated from one another. Question 6 options: True False

One gram of lipid yields about 9kcal of energy. that is due to the high abundance of which chemical element?

Which of the following happens during a chemical change? Check all of the boxes that apply 0 One atom or more changes into atoms of another element. New substances with different properties are formed. O Solids, liquids, or gases may form.

The energy derived from the movement of H + ions down an electrochemical gradient from the intermembrane space into the matrix is used to drive the synthesis of ATP. How many H + ions must be moved into the matrix for the synthesis of 1 ATP?