A reaction which needs to gives off energy to complete the chemical reactions is called an

A) adiabatic reaction.

B) oxidation reaction.

C) exothermic reaction.

D) endothermic reaction.

When calculating the density of a liquid you measure 8.2 ml in a graduated cylinder with markings every 1 ml and measure the mass on a balance 9.548g. what is the density of this liquid with significant figures?

What was formed as result of diverging plates

Which factor is defined as the average kinetic energy of a substance? the mass of the substance the volume of the substance the pressure of the substance the temperature of the substance

Which of the following statements is true? A) Entropy is not a state function. B) Endothermic processes decrease the entropy of the surroundings, at constant T and P. C) Endothermic processes are never spontaneous.

What volume of 20 mg/L dye would be required to make 50. mL of. 10 mg/L dye?

B2O3 (s) + 3C (s) + 3Cl2 (g) - - - > 2 BCl3 (g) + 3CO (g) Calculate how many moles of BCl3 are produced from the reaction of 61.0g of B203? A. 1.75 mol B. 0.0150 mol C. 51.3 mol D. 211 mol

A gas has a volume of 10 L at 0 C what is the final temperature of the gas if it volume increases to 25L

Are specimens the best source of DNA

Given the solubility, calculate the solubility product constant (ksp) of each salt at 25°c: (a) ag2so3, s = 4.6 * 10-3 g/l; (b) hg2i2, s = 1.5 * 10-7 g/l; (c) zn3 (po4) 2, s = 5.9 * 10-5 g/l.

Why does ionization energy tend to increase as you move across a period