Noah does a experiment to determine how many people can fit in his room. he finds that two people can fit into the first square foot. his room is 16 square yards. how many dozen people can fit into his room

A 0.3146-g sample of a mixture of nacl (s) and kbr (s) was dissolved in water. The resulting solution required 45.30 ml of 0.08765 m agno3 (aq) to precipitate the cl - (aq) and br - (aq) as agcl (s) and agbr (s).

If an object has 62 joules of gravitational potential energy then? A: there is no way to find the amount of work done. B: the work required to lift it to that height is the same. C: the work required to lift it to the height is 31 joules.

Calculate the number of oxygen atoms in 15.0g of calcium nitrate

Most of the elements of which region of the periodic table are located directly to the right of the metalloids? answer first essay thing sec

Suppose you increase your walking speed from 4 m/s to 13 m/s in a period of 1 s. What is your acceleration? m/s2

Can someone reword this? A magnetic substance has magnetic fields. These fields start at the North Pole wrap around the magnet, and terminate at the south pole of the magnet. All magnetic substances have north and south poles

Which of these is produced when fossil fuels are burned? A) oxygen Eliminate B) nitrogen C) hydrogen D) carbon dioxide

Predict the sign of ΔSsys for each of the following processes. Which are positive? (a) Gasoline vapors mix with air in a car engine. (b) Hot air expands. (c) Humidity condenses in cold air.

A system consists of two components, each of which must activate if the system is to activate. One component has a reliability of. 99. The other has a reliability of. 95. The components are independent of one another with respect to reliability.

Which of the following energy level changes for an electron is most energetic? 3 → 2 5 → 2 4 → 2