How many protons and nucleus does a silicon atom have?

A is a metrical foot having one accented or long syllable followed by two unaccented or short syllables.

Which statement explains how the bands in the crystal of a metal are like atomic orbitals? They both have localized electrons that orbit specific atoms. They both involve ionization of some atoms so bonding can occur.

In a sealed bottle that is half full of water, equilibrium will be attained when water molecules

Carrying capacity can vary depending on environmental conditions. a. True b. False

Term used by geologists for water that soaks into the ground, fills the openings in the soil, and trickles into cracks and spaces in rock layers

Name 4 common chemical properties of matter

Why is photosynthesis so important to plants, and can't animals use it?

One way the government of Kim Jong-il controls the lives of the people who live in North Korea is by a. requiring every citizen to vote. b. controlling information its people receive from the outside world. c. enforcing free trade with other nations.

Give reasons 1) copper utensils and sheets become blackish after some days

Predict the spontaneity of a reaction (and the temperature dependence of the spontaneity) for each possible combination of signs for? H and? S (for the system).