Which of the following is not a way that nonnative organisms are introduced to new aquatic ecosystems related to commerce? A. cargo ship hulls B. recreational boats C. escape from aquariums D. migration

a 125 g chunk of aluminum at 182 degrees Celsius was added to a bucket filled with 365 g of water at 22.0 degrees Celsius.

What is precipitation? (chem)

The hydrogen ions in the core of the sun move at high speed. Colliding together and sticking to each other. Proton - Proton Chain: 1) Two hydrogens collide, one becomes a neutron. Product becomes Deuterium.

How can you create low pressure in a capped bottle?

Is Li has 7 valence electrons

Determine the molecular weight of H2O. 18 g 18.0 g 18.01 g 18.016 g

Nonmetals gain electrons under certain conditions to attain a noble-gas electron configuration. how many electrons must be gained by the element c?

Which of these is a mixture? A. carbon b. oxygen c. air d. Carbon Dioxide

What hypothesis can you draw about penicillin

what is the height of a block with a length of 10cm a width of 5cm a mass of 50g and a density of 8.64g/cm3