A measurable or visual way to describe something

Why is the enthalpy of formation of oxygen zero?

What is the name of the ionic compound CaO?

What type of solution is aerated water. why is it so.

Why do you think most transportation in the U. S is still running on fossil fuels

A biology class wants to perform an experiment to investigate the effect of different colors of light of green, yellow, red and clear cellophane and plant three seeds in each one. What part do the three seeds experiment? a. Confounding variables b.

A Gran plot for a potentiometric titration resulted in a slope of 5.56 x 105. Measurements were made using SCE as the reference electrode and the analyte Eo was determined to be 0.354 V.

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In which choice is the ellipsis used correctly to select from this sentence from The Scarlet Letter? A throng of bearded men, in sad-coloured garments and grey steeple-crowned hats, inter-mixed with women, some wearing hoods, and others bareheaded,

Explain the difference between the greenhouse effect and global warming.

How does adding salt affect the surface tension of water? if it increases surface tension, will it always increase it?