In what year was the first periodic table published

5. which element has 2 more protons than nickel?

Of the groups of elements below, which are most likely to gain electrons to become anions? A. Alkali Metal B. Boron Group C. Halogen D. Transition Metal

What happened to global temperatures after the eruption of mt pinatubo

An aqueous solution of sodium chloride is best classified as a (1) homogeneous compound (2) homogeneous mixture (3) heterogeneous compound (4) heterogeneous mixture

What is the primary meaning when we say that something burns?

Name the following compound HClO

Aluminum and Oxygen gas will react to form Aluminum Oxide (Al2O3). When the equation is balanced, How many moles of Al2O3 are formed when a mixture of 0.36 moles Al is ignited? a. 0.12 b. 0.18 c. 0.28 d. 0.46

Which state of the West produces the widest varieties of fruits, vegetables, and nuts? A) California B) Colorado C) Wyoming D) Alaska

A chemical engineer for a fertilizer company is determining the most efficient way to produce ammonia. the engineer carries out the haber reaction under four different conditions.

What type of Bond exist in a molecule of hydrogen Iodide