Chemistry Review

What is the charge on a Magnesium atom that has lost 2 electrons?

Which particles are found inside the nucleus of an atom?

A compound that releases ions when it is in solution is called a(n):

Which of the following is true of elements?

Covalent bonds ___ electrons while ionic bonds ___ electrons and attract due to their ___.

The most abundant compound in the body is

Which of the following accurately describes water molecules?

Electrically neutral atoms

An atom with a positively charged ion is called a:

_________ is considered a simple sugar that circulates in the blood to provide nutrients for a cell.

The group of complex molecules that includes fats and cholesterol is

DNA, RNA, and ATP are examples of:

If an atom has 9 protons and 10 neutrons, the atomic mass is

When two or more atoms chemically combine it is called a ____.

How do you make a witch itch

Which of the following best describes metabolism?

Normal Blood pH chemistry ranges from:

The force that holds two atoms together is called a ____.

An atom that has lost or gained electrons is called a(n)

A combination of two or more substances that are not chemically bonded is a(n)

Salt completely dissolved in water is an example of a:

When electrons are transferred from one atom to another :

The atomic number of an element is

A ____ is made of at least 2 different types of atoms.

A function of lipids

The element that is the basis for organic chemistry and also is a solid is:

If an atom has 6 protons and 7 neutrons, the atomic number is

Carbon (atomic mass 12) and Carbon (atomic mass 13) are

A heterogeneous mixture in which substances will settle out unless the mixture is shaken:

The energy of motion is defined as ___________________.

In an atom, the negatively-charged particles outside the nucleus are called:

Isotopes are atoms of the same element that have

What type of bond is created when two or more atoms share electrons?

What can cause proteins to denature

Which of the following is a polysaccharide?

Elements are different because they contain different numbers of

Which of the following is an example of a homogeneous substance.

Oxygen, carbon, hydrogen, and nitrogen make up about ___ of body weight?

These proteins are essential for metabolism, they serve as a catalyst

______ maintains constant pH of body fluids by preventing sharp changes in hydrogen ion concentration.