Baking soda, NaHCO3, decomposes when it is heated. How much heat will be absorbed by the decomposition of 5.25 moles of baking soda? 2 NaHCO3 → Na2CO3 + H2O + CO2 ΔH = +129 kJ

Which of the four hypothetical substances you investigated would be most harmful to living organisms? 50 points!

Scientists often deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each of these numbers in an alternate form.

Which of the following is a solution a- brewed coffee b-tomato juice c- ranch salad dressing d- muddy water