C-12 and c-13 are naturally-occurring isotopes of the element carbon. c-12 occurs 98.88% of the time and c-13 occurs 1.108% of the time. what calculation should be used to determine the atomic mass of this element?

Why does his teacher ask him to balance the equation by including the correct coefficient

1. explain hydrogen peroxide, h 2 o 2 properties and decomposition reaction. 2. describe how each of the following natural cycles plays a part in earth’s climate system. (a) the water cycle (b) the carbon cycle

Which are examples of how technology has advanced scientific understanding.1using hot water to sterilize medical equipment.2transplanting a human organ into another individual.3inserting genes from one sheep into another cell to make a cloneunderstanding the different structures that make up a cell.4examining microorganisms from the deepest parts of the ocean