Which of the following units would be the most appropriate for measuring the mass of a grain of rice?

A.

milligrams

B.

grams

C.

kilograms

D.

centigrams

If element X bonds covalently with element Y, then what must the electronegativity difference between X and Y be for this bond to be nonpolar?

Why is it important to determine the qcalorimeter before determining the qmetal?

What are the shorthand and long hand electron configurations for chlorine.

What two trends are commonly seen in modern monthly co2 concentration charts?

The first ionization energies of an element are approximately 738 kj/mol, 1450 kj/mol, 7.7 * 103 kj/mol, and 1.1 * 104 kj/mol. to which periodic group does this element belong?

A. A rapid cooking method that uses high heat from a source located above the food.

What is the number of copper atoms in 1naira coin which weighs 7.39g assuming the material of which the coil is made is 86% copper Na=n/n number of moles/n

Which of the following statements are consistent with Rutherford's nuclear theory as it was originally stated? (A) The volume of an atom is mostly empty space. (B) The nucleus of an atom is small compared to the size of the atom.

Which has a larger atom calcium or barium?

When a spring is compressed, the energy changes from kinetic to potential which best describes this change?