Why is it important to use proper safety equipment when handling acids? a. acids taste sour. b. acids feel slippery. c. acids contain hydrogen. d. acids can burn skin.

The clouds are grey and ground is wet. a quantitative b qualitative

As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?