A substance that produces H + ions in solution is a.

A) soap

B) acid

C) salt

D) base

If the voltage across a circuit of constant resistance is doubled, how is the current in the circuit affected?

Unpolarized light passes through two ideal Polaroid sheets. 12.3% of the incident light is transmitted. What is the angle between the transmission axes of the Polaroid sheets?

A volume of 229 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 756.0 Torr and the temperature is 25°C. Calculate the atomic mass of the metal.

A car accelerates from rest at - 3.00 m/s2. a. What is the velocity at the end of 5.0 s? b. What is the displacement after 5.0 s?

Which of these causes physical weathering? A) wind B) glaciation C) freezing temperatures

Planet A takes 1 year to go around its star at an average of 1 A. U. distance. Planet B is 4 A. U. from the star. Calculate how long Planet B takes to orbit.

Average mass of a toy car (small, hot wheels) ?

A pwc capsizes. what is the best way to roll the pwc to turn it upright?

Which biome has the most extreme conditions

give an example of the follow components of culture in your life and explain the role it plays. 1. symbols.