What determines the length of each period in the periodic table?

Navah writes out the chemical equation for photosynthesis. She includes two reacting molecules to the left of the arrow and two resulting molecules to the right.

By whom is chemistry used in the real world

Darryl finds a bottle of what looks like clear water, with dirt settled at the bottom. When he shakes the bottle, the water gets dirty.

Draw the structure of a compound with the molecular formula CgH1002 that exhibits the following spectral data. (a) IR: 3005 cm-1, 1676 cm-1, 1603 cm-1 (b) H NMR: 2.6 ppm (singlet, I = 3H), 3.9 ppm (singlet, I = 3H), 6.9 ppm (doublet, I = 2H), 7.

The heliocentric theory: was immediately accepted was proposed by Galileo states that the earth revolves around the sun proposed that the earth was the center of the solar system

Which is classified as a salt ammonia or sodium chloride?

How many grams of CrSO3 are in 2.4 moles of CrSO3

To which digestione organ dose food travel it leaves the stomach

How should you measure the mass of a given powdered substance?

How many moles of gas are present if p=11 atm, V=12L, T=185k?