A placebo is a substance that is unlikely to affect the dependent variable.

a. True

b. False

16. Formaldhyde has a mole ratio of 1 mole C: 2 moles H: 1 mole O. Its empirical formula is the same as its molecular formula. How many grams are in 3.25 moles of formaldehyde? a. 30.03 g c. 75.08 g b. 60.06 g d. 97.60 g

Explain why insects are considered to be the most diverse organism? Insects can survive in all extreme environments. Insects are the only large organism that can be found anywhere in the world. They are the food source for all animals.

The two balanced equations (1) and (2) are for reactions in which gaseous carbon dioxide is produced from the combustion of (1) solid carbon (2) gaseous carbon monoxide. 1. C (s) + O2 (g) CO2 (g) + 94.0 kcal 2. CO (g) + ½O2 (g) CO2 (g) + 67.

Consider the balanced equation for the following reaction: 3Ca (ClO3) 2 (aq) + 2Li3PO4 (aq) → Ca3 (PO4) 2 (s) + 6LiClO3 (aq) Determine the theoretical yield of LiClO3 (aq) in grams if the percent yield of LiClO3 (aq) is 81.0% and 9.

Does Radiant Energy contain Kinetic, or potential energy or both?

Of the following reactions, which one produces oxygen gas? Fermentation Anaerobic respiration Aerobic respiration Photosynthesis

Describe the electrodes in this iron-copper galvanic cell.

What happens to wood when it burns?

El cuerpo humano tiene unos 6 billones de células (6,0x1012) y la población de la Tierra es de unos 8 000 millones de personas. Con estos datos aproximados, calcula las moles de células humanas que hay en la Tierra.

True or false: an apple looks red because it absorbs red light?