Solutions with a low pH have which of these properties?

- have an - OH value

-feels slippery

-tastes sour

-turns litmus paper blue

Consider an electron that is 10^-10 m from an alpha particle (q = + 3.2 times 10^-19 C). (a) What is the electric field due to the alpha particle at the location of the electron?

If a 1.5 v battery sends a current through a 50 resistor, the current is:

Two airplanes leave an airport at the same time and travel in opposite directions. One plane travels 87 km/h faster than the other. If the two planes are 11,865 km apart after 7 hours, what is the rate of each plane?

Which system contains ice and glaciers? a. geosphere b. atmosphere c. hydrosphere d. cryosphere

The volume of a substance must be measured several times during an experiment. Which units should be used to measure the volume of the substance? centimeters milligrams kelvins liters

Suppose if you whirl a yo-yo about your head in a horizontal circle. in what direction must a force act on the yoyo? What exerts the force?

Solutions with a low pH have which of these properties? - have an - OH value -feels slippery -tastes sour -turns litmus paper blue

Steel is a mixture of iron and carbon. It can be separated into iron and carbon by melting it. What is steel? A. A compound B. An element C. A molecule D. An alloy

Consider two small masses of air, both at a pressure of 1000 mb. One mass is on the beach in Costa Rica (lucky air mass) and the other is on a glacier in Greenland (Sad!). Which mass has the higher density?

Metric Unit for Weight (Not grams)