| A | B |
|---|
| The most common elements in living things are what? (hint: NCHO) | nitrogen, carbon, hydrogen, oxygen |
| A substance formed by the chemical combination of two or more elements is an enzyme? or a compound? | a compound |
| The nucleus of an atom contains which 2 parts? proton? neutron? electron | proton and neutron ( electrons are in the outer shell) |
| What is the charge of a proton? | positive |
| What is the charge of an electron? | negative |
| What is the charge of a neutron? | no charge |
| Which of these parts of an atom has no charge? proton, neutron, or electron? | neutron |
| Carbon has several isotopes. Isotopes are atoms of the same element with the same number of proton but a different number of what? neutrons or electrons? | neutrons |
| When metal bonds to non metal what kind of bond is that? ionic or covalent bond? | ionic bond |
| What type of ion forms when an atom LOSES electrons? | Positive ion |
| What does a chemical reaction do? destroy atoms or rearrange atoms? | rearrange atoms |
| Two atoms of hydrogen and one atom of oxygen makes what molecule? | water H2O |
| Why does ice float on water? Ice is MORE dense than water? or Ice is LESS dense than water? | Ice is LESS DENSE than water |
| The space arround the nucleus contains the what? protons? neutrons? electrons? | electrons |
| If an atom has 11 protons and 12 neutrons what is its ATOMIC NUMBER? | 11 |
| An atom has 22 protons and 23 neutrons. What is its atomic number? | 22 |
| 2 Hydrogen and 1 oxygen form what product? | water |
| 2 H + 1 O = H2O Which part of the formulas is the reactants and which part is the products? | reactants are the H and the O. Product is H2O |
| I an atom has 6 protons and 14 neutrons, what is its ATOMIC MASS? | 20 |
| How many neutrons in an element that has 12 protons and an mass of 34? | 22 |
| Which is more acidic... a PH of 4.6 or a PH or 4.2? | 4.2 |
| If a substance has a PH of 6 is it an acid or a base? | an acid |
| If a sublstance has a PH of 9.2 is it an acid or a base? | a base |
| If salt is disolved in water, is water the solute? solvent? or solution? | solvent |
| If Nestles Quik is disolved in milk, is the Quik powder the solute? solvent? or solution? | solute |
| Is a monosaccaride an amino acid or a carbohydrate? | carbohydrate |
| Is a steroid a carbohydrate or lipid? | lipid |
| What is the main fuel of cells? proteins or carbohydrates? | carbohydrates |
| Carbohydrates provide cells with quick energy or stored energy? | quick energy |
| Monosaccharides, disaccharides and polysaccharides are forms of carbohydrates or lipids? | carbohydrates |
| Fatty acids, steroids, saturated and unsaturated fats are forms of carbohydrates or lipids? | lipids |
| Which come from animal fats? saturated or unsturated fats? | saturated fats |
| Which is the good type of cholesterol? LDL or HDL? | HDL (think "h" is for happy!!!) |
| Which organic compound is for stored energy? Lipids or amino acids? | Lipids |
| Cholesterol is a what steroid or a saturated fat? | steroid |
| Name the three polysaccharides that start with S, G and C | Starch Glycogen and Cellulose |
| A carbohydrate with two sugars is a disaccaride or a polysaccaride? | disaccharide |
| To add a monomer to a chain you need what kind of reaction? dehydration or hydration reaction? | dehydration reaction |
| Carbon based molecules are inorganic or organic? | organic |
| What speeds up a rate of a chemical reaction a catalyst or a molecule? | catalyst |
| Covalent bonds bond nonmetal to what? metal or nonmetal? | nonmetal |
| Ionic bonds form when a metal bonds to another metal or nonmetal? | nonmetal |
| What are the 4 common elements in living things? NCHO | Nitrogen, Carbon, Hydrogen, Oxygen |
| Which organic compound provides cells with QUICK ENERGY? | Carbohydrates |
| Which organic compounds provides cells with STORED ENERGY? | Lipids |
| Which organic compound provides cells with the building blocks to make cells? | Amino Acids |
| Which organic compound is need for DNA? | Nucleic Acid |
| Which organic compounds directs the cells acitivities and stores the genetic information? | Nucleic Acid |
| Where to saturated fats come from? plants or animals? | Animals |
| Lipids are fats or protein? | fats |
| Proteins are amino acids or carbohydrates? | Amino Acids |
| Carbohydrates are sugars or fats? | Sugars |
