As you add an acid to water, ions are formed.

a: hydroxide
b: hydrogen
c: hydronium
d: water

The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error

Who was the first scientist to measure speed as distance over time?

Which levels of government establish and implement educational requirements for minors