When 400 grams of wood are burned, 30 grams of ash remained. What happened to the missing 370 grams of matter?

What system includes the living components of earth

The kelvin temperature of a substance is inversely proportional to the average kinetic energy of the particles in that substance. question 13 options: a. True b. False

In general, when a substance changes from a solid to a liquid, A. the density of the substance increases. B. the substance no longer has density since density is a property only solids have. C. the density of the substance decreases. D.

Which statement best describes pseudoscience? It is objective and backed by facts. It lacks a process for collecting data. It is constantly updated based on new information. It is closely analyzed before it is made known.

Each of the following reactions shows a solute dissolved in water. Classify each solute as a strong electrolyte, a weak electrolyte, or a nonelectrolyte.

15.434 g of kcl (m. m 74.55 g/mol) is dissolved in water up t a total volume of 500.0 mL. the density of this solution is 1.02 g/mL. what is the concentration of he solution in molality

Determine the molar mass of an unknown monoprotic acid to two decimal places if 20.01 ml of a 0.098 m naoh solution were used to titrate 0.215 g of the unknown acid

A diatomic molecule with a triple covalent bond is A. H2 B. N2 C. O2 D. Br2 (P. S. The answer turned out to be B. N2)

Consider the following half-reactions: Half-reaction E° (V) I2 (s) + 2e - 2I - (aq) 0.535V 2H + (aq) + 2e - H2 (g) 0.000V Zn2 + (aq) + 2e - Zn (s) - 0.

Where did the longest tsunami form?