Eutrophication caused by humans is called?

a. artificial phosphates

b. artificial fertilizer

c. artificial trophication

d. artificial eutrophication

Based on the trends within the periodic table of elements, decide which of the following elements has the same number of orbitals? A. Cu, Ag, Au B. N, O, F C. Be, Mg, Ca D. B, Si, As

ionic compounds tend to form between metals and nonmetals when electrons are transferred from an element with high ionization energy (metal) to an element with a low electron affinity (nonmetal). a. true b. false

Titanium is a metal used to make golf clubs. a rectangular bar of this metal measuring 1.77 cm x 2.08 cm x 2.64 cm was found to have a mass of 48.9 g. what is the density of titanium in g/cm3? answer

Ou encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution?

How can you find the energy levels of an atom

How much energy is evolved during the formation of 197 g of fe, according to the reaction below? fe2o3 (s) + al (s) → al2o3 (s) + fe (s) δh°rxn = - 852 kj?

What is mandrake tuber

Write the atomic symbols for isotopes with the following characteristics? 1) an oxygen atom with 10 neutrons 2) a neon atom with twelve neutrons 3) 25 electrons and 28 neutrons 4) a mass number of 24 and 13 neutrons 5) a titanium atom with 25

What type of decay process is demonstrated in the following reaction 40 - 19K to 0 - 1e+40-20Ca?

What is the name of the outermost layer that forms a boundary around the outside of each cell