Biology

Every year new varieties of fruits and vegetables appear on the store shelves. Some are the result ...

Started by eruditmonkey@yahoo.com

How might washing your hands with an antibacterial soap increase your chance of getting a ...

Started by notis

The chemical name for table salt is sodium chloride, or simply NaCl. What type of chemical is NaCl?

Started by Tirant22

Identify the reactants in the following chemical reaction: C10H8 + 12 O2 10 CO2 + 4 H2O

Started by charchew

How many HCl molecules are required to balance the following reaction? Zn + ___ HCl ZnCl2 + H2

Started by burchfield96

What is a trace element?

Started by audie

What is the most common element in your body?

Started by naturalchemist

Which is not one of the four atoms that make up the bulk of living organisms?

Started by Collmarie

The majority of the elements essential to life are found in what part of the periodic table?

Started by mckennatimberlake

The typical carbon atom is described in the periodic table by the accompanying box. How many protons ...

Started by nmorano1

If the number of protons in an atom does not match the number of electrons, the atom is specifically ...

Started by mydiamond

Identify the part of the atom that most determines the chemical reactivity of the atom.

Started by Cooldude101

In chemical bonding, when the bonded atoms share electrons, it is specifically called ________.

Started by tatyanajohnson

What is the maximum number of electrons that can fit into the innermost shell of an atom?

Started by Sufayan.ah

While the maximum number of electrons required to fill the outermost shell of an atom varies ...

Started by NClaborn

What is the maximum number of single covalent bonds a carbon atom can form with other elements?

Started by asan beg

Individual water molecules are held to one another by relatively weak ________ bonds.

Started by bobthebuilder

The electronegativity of an atom is determined by how strongly outermost electrons are pulled toward ...

Started by charchew

Why is one side of a water molecule partially negative while the other side is partially positive?

Started by crazycityslicker

Water is the lightest (least dense) when it ________.

Started by tatyanajohnson

A needle can be made to "float" on the surface tension of water. What causes this surface tension to form?

Started by JMatthes

Water "beads up" on synthetic fabric like polyester but binds to cotton. What is the most likely ...

Started by bio_gurl

Select the most complete explanation of what the pH scale actually measures.

Started by xroflmao

The difference in pH units between two acidic solutions is three. How much more acidic is the ...

Started by Diane

Something with a pH of 5 would be ________.

Started by 809779