Which solution has the highest pH?

A) 0.10 M HBr (aq)

B) 0.10 M HI (aq)

C) 0.10 M HF (aq)

D) 0.10 M HCl (aq)

E) 0.10 M HClO4 (aq)

What can you determine about an element if you only know its group number on the periodic table? A. The number of valance electrons B. The total number of protons and neutrons C. The number of protons ОО D. The total number of electrons

How many kilograms of ice at a temperature of - 10.9 ∘C must be dropped in the water to make the final temperature of the system 27.2 ∘C?

Which of the following is a nonrenewable resource? A. Tree B. River C. Gold D. Carbon

What type of energy is present in lightning? A.) Electrical energy B.) Chemical energy C.) Nuclear energy D.) Potential energy

Determine the mass of a sample of 3.6moles of CaCl2

Which statement about Clinton s impeachment is true? A. Clinton s impeachment was supported by the majority of Americans. B. The impeachment charges were based on fraud found during the Whitewater investigation. C.

When the equation ZnS+O ZnO+SO isbalanced the coefficientof O is 1, 5, 3, or2

Radioactive elements decay at a know rate known as half-life. Choose all of the correct statements concerning half-life. Carbon-14 has a half-life of 5,730 years. A 30 gram sample will be 10 grams after 5,730 years.

I am the most reactive metal in Period 4.

Titanium is a transition metal used in many alloys because it is extremely strong and lightweight. titanium tetrachloride (ticl4) is extracted from titanium oxide using chlorine and coke (carbon). if you begin with 1.