What was the first organic compound to be synthesized in a lab?

sucrose

bilirubin

urea

nylon

A pencil sharpener contains which simple machine Block and tackle Lever Wheel and axle Pulley

Describe what you would do to prepare 100.0g of a 3.5% solution of ammonium sulfate in water.

Gamma rays are unlike alpha and beta particles because gamma rays: are more strongly deflected by electric or magnetic fields have less energy than either alpha or beta particles have more mass than either alpha or beta particles have no effect on

Elements in the first group of the periodic table are alkali metals alkaline earth metals transition metals radioactive metals

Eric carries out the same chemical reaction 10 times the maximum temperatures the reaction system attained is shown on the right The mean maximum temperature the system attained was

Why won't water reform to an ice cube if you freeze it?

For what reasons can a theory be changed

Explain how changes in pressure affect the rate and yield of ammonia produced

What volume of 20 mg/L dye would be required to make 50. mL of. 10 mg/L dye?

A weather balloon at Earth's surface has a volume of 3.9 L at 299 K and 763 mmHg. If the balloon is released and the volume reaches 4.13 L at 720 mmHg, what is the temperature? Answer in units of K.