Which is evidence that supports the dynamo theory?

A. Silicon is a conductive material.

B. Convection occurs in the mantle very slowly.

C. Iron does not conduct electricity.

D. Earth's core contains mostly iron and nickel.

An unknown sample weighing 28.26g contain 70% of hydrogen and 30% of carbon calculate the [1]empirical formula [2]the molecular formula [3]give the iupac name of the compound

An aqueous solution of sodium hydroxide containing 2g in 200cm^3 of solution has a concentration of (NaOH = 40). answer in mol/dm^3

Predict products or C3H8 + O2 via combustion

Cabbage Juice pH Chart pH Color 2 Red 4 Purple 6 Violet 8 Blue 10 Blue-Green 12 Green The juice from red cabbage is a well known pH indicator solution.

What are the constituent element of potassium sorbate?

Hat information is needed to determine the energy of an electron in a many-electron atom?

Write the formulas for the following compounds: (a) copper (l) cyanide, (b) strontium chlorite, (c) perbromic acid, (d) hydroiodic acid, (e) disodium ammonium phosphate, (f) potassium dihydrogen phosphate, (g) iodine heptafluoride, (h)

Name a complex salt used in silver-playing.

10. In what part of the world might you find Mystery Island (note: you will be given full-credit for simply attempting this question and you will find the actual answer in your teacher's feedback). Do not answer!

What are the spectator ions in this equation?