Fireworks contain metals that are brightly colored when burned. They are less reactive than some other metals. Which metal is one example?

A. Ne

B. Li

C. Mg

D. K

An electron charge e mass m and a positron charge e mass m revolve around their common center of mass under the influence of their attractive coulomb force Find the speed v of each particle in terms of e m k and their separation L

A compound has an empirical formula of CH20. What is its molecular formula, if its molar mass is 180 g/mol? (C=12.01 amu, H=1.008 amu, O=16.00 amu)

What is the name of the compound with the formula al (ch3coo) 3?

What is the temperature of the mixture formed of 100 g of water with temperature 15c and 250g of water with temperature 50c in a supposedly isolated postion

Radioactive elements will continue to decay until A. They have a stable nucleus B. They have a full octet of electrons C. They have a neutral electrical charge D. They have the same number of electron and protons

Methanol, ch3oh, is produced commercially by the catalyzed reaction of carbon monoxide and hydrogen. co (g) + 2 h2 (g) equilibrium reaction arrow ch3oh (g) an equilibrium mixture in a 2.00 l vessel is found to contain 0.0406 mol ch3oh, 0.

What is ocean crust?!

Which one of the following types of rock would weather the fastest A. Small piece of granite B. large blocks of clay C. small pieces of clay D. Large blocks of granite

A scientist has a new cough medicine by giving it to a group of course the scientist gives another group called the liquid and tells them cough medicine the people and goods are women between the ages of 20 and 30 you never a are in good health

What is 350 kelvins on the celsius scale of temperature