Courtney drives for 30 minutes at 50 mph

and for 1 hour at 40 mph. How far has he

traveled altogether?

In the investigation of an unknown alcohol, there was a positive Jones test and a negative Lucas test. What deductions may be made as to the nature of the alcohol? State reasons for your deductions.

Marking brilliant for answers Which situation represents quickly dissolving a solid solute? Small crystals of solute are dropped into a warm solvent and then stirred. Small crystals of solute are dropped into a cold solvent.

A liquid used to dissolve a solid is referred to as: a catalyst a solvent an inhibitor an indicator

Assessment started: undefined. Item 1 Which example is a biotic factor of an ecosystem? A) the amount of water vapor present in a rain forest B) the bacteria that live in the intestine of a rabbit C) the temperature of water in a stream D) the rocks

Does the oxidant cause oxidation or reduction?

Calculate the average bond order for a p-o bond (such as the one shown in blue) in a phosphate ion.

Match the vocabulary terms to their definitions. 1. standard metric unit of length mass 2. a proposed explanation for a scientific problem hypothesis 3. standard unit of volume liter 4. the curved top surface of a liquid column control 5.

The speed at which any planet moves through space is constantly changing. In a perfectly circular orbit, the orbital radius of the planet would be constant and therefore so would be its observed angular velocity.

How many electrons are in an atom of elemental sodium? A) equal to the number of neutrons B) equal to the number of protons C) equal to the number of protons and neutrons

During which era did mosses, ferns, and conifers first appear? 8. e. 6A. 1 * cenozoic mesozoic paleozoic