Which of the following electron configurations for neutral atoms is correct? Li nitrogen: 1s 2, 2s 2, 2p 3 the third sub-level silicon: 1s 2, 2s 2, 3s 2, 2p 6 3p 2 helium: 1s 1, 1p 1

A voltaic cell is constructed with an Ag/Ag + half-cell and a Pb/Pb2 + half-cell. Measurement shows that the silver electrode is positive. (a) Write balanced half-reactions and the overall spontaneous reaction.

If two poisonous gases are combined chemically which of the following will be true of the resulting compound?

Peas contain 250 kJ per 100 g. You would use the equivalent of 600 g of peas if you slept for.

The heat from the bonfire is transferred to the student's hands through the process of

When water droplets in a cloud combine, become too heavy, and fall to the ground as snow, sleet or hail, we are experincing what?

Which sample of water contains particles having the highest average kinetic energy?

Use the terms magnetic field and magnetic pole in a sentence

Which of the following statements about chemical formulas is FALSE? A) The subscripts represent the relative number each type of atom in the compound. B) The subscripts represent the relative mass of each type of atom in the compound.

The lowest possible concentration of free hydrogen ions is represented by a ph value of

Diseases that are inherited are caused by