Why is alchemy not considered a science

Around 1910, Rutherford bombarded gold foil with alpha particles. Most of the alpha particles passed straight through. To his surprise, a smaller number were deflected by 180°. This summary recounts the scientific discovery of A.

Biomes are defined by specific characteristics. What characteristics would define the biome shown? a. cool and windy with coarse gravelly soil b. low-growing shrubs and large furry carnivores c. cool and windy with small nocturnal carnivores d.

Why does Bcl3 and SiCl4 dissolve in water, where as ccl4 can't dissolve in water

Using density what is the mass in grams of 150mL of a liquid with a density of 1.4 g/mL

Explain how an atom is composed of charged particles yet can have an overall charge of zero.

Which oxygen pachages materials and distributed them throughout the cell

How many atoms in 3 mol zn

Isotopes: are atoms of different elements which have the same mass are atoms of the same element with equal numbers of neutrons are atoms of the same element with different numbers of neutrons are atoms of the same element with equal numbers of

What would happen to the volume of a sample of gas if the temperature was decreased at the same time the pressure was increased?

How do the compounds that cause acid rain spread from their source?