What kinds of bonds can happen between the elements of a compound? a. Ionic and Monogamous c. Dual and Chemical b. Covalent and Ionic d. Physical and Electrical

In the future, clean energy sources, such as solar power, may be used to create hydrogen fuel. a. True b. False

Which of the elements has the highest electronegativity? (A) F (B) P (C) LI (D) CI

When an atom becomes an ion does its mass number change?

I2 is produced by the reaction of 0.4235 mol of CuCl2 according to the following equation: 2CuCl2+4KI 2CuI+4KCl+I2

What does the dashes line represent? A. Medium B. Boundary C. Normal D. Incident Ray

What does the energy hill represent on an energy diagram? A. The potential energy gained by the products when a reaction happens B. The final amount of potential energy of the products of the reaction C.

Compared to the ideal angle, you would expect the actual angle between the bromine-oxygen bonds to be

Iron is an important element in human body cells. If iron has an atomic number of 26, what does this tell you about this element?

Select all that apply. A scientific law: A - is generally accepted as true B - has never been found to be in error C - has no known contradictions D - must be reverified occasionally

A volume of 125 mL of H2O is initially at room temperature (22.00 ∘C). A chilled steel rod at 2.00 ∘C is placed in the water. If the final temperature of the system is 21.