Which are examples of chemical weathering. Check all that apply. grinding away of rock surface

acid rain weathering a statue

tree root growing in the crack of a rock

weak acid from lichens weakening a rock

water freezing, expanding, and thawing repeatedly

water dissolving a soft rock

rust weakening a rock

What are four significant sources of ghgs that come from wostem washington?

Which answer tells the reason the earth’s climate is getting warmer? too many animals are becoming extinct. large glaciers are melting in antarctica. the earth is moving closer to the sun. driving cars gives off gases that trap heat in the atmosphere.

Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization.a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution.part bcalculate the percent ionization of ha in a 0.010 m solution