In a Lewis dot diagram how many dots would the elements Cd have?

A species that adapts will be more likely to ... A. Become extinct B. Mutate C. Survive D. Live a shorter life

An element that can have different physical properties or chemical arrangement is called a (n) a radio active element C. halogen b. transmutation d. allotrope

Hydrogen H 2. helium Mg 3. sodium K 4. magnesium He 5. potassium Na

What happens to the particles in a substance when it is cold?

What volume of 10M stock solution of HCL is needed to make 500 ml of. 100 M solution for an experiment?

A 75.00 g a sample of a substance is analyzed and found to consist of 32.73 g phosphorus and 42.7 g oxygen. calculate the percent composition of this substance.

Which one of the following melts the fastest: rectangular prism, cylinder, and rectangular trapezoidal trough?

A 1.8-mL volume of seawater contains about 4.0 * 10^-10 g of gold. The total volume of ocean water is about 1.5 * 10^21 L. Calculate the total worth of all the gold in the world's oceans if the price of gold is $19.

Why are numbers placed before the elements and molecules in a chemical equation?

Which of these pairs of elements have the same number of valence electrons? oxygen (O) and bromine (Br) selenium (Se) and bromine (Br) carbon (C) and lead (Pb) oxygen (O) and carbon (C) sodium (Na) and magnesium (Mg)