Science Jeopardy Acids and Bases The Chemistry of

Science Jeopardy Acids and Bases The Chemistry of Living Things Density Buoyancy $100 $100 $200 $200 $300 $300 $400 $400 $500 $500 Chemical Reactions Law of Conservatio n of Mass $100

The 6 after the H in C 3 H 6 is called a ______. Subscript Main

What are the reactants in the following chemical equation? 2 C 2 H 6 + 7 O 2 4 CO 2 + 6 H 2 O 2 C 2 H 6 + 7 O 2 Main

In the chemical equation 2 C 2 H 6 + 7 O 2 4 CO 2 + 6 H 2 O, what does the arrow mean? Yields Main

The four clues that a chemical change has occurred are: Gas formation (bubbles) Energy change (heat or light) Color change Solid formation Main

New substances can only be formed by __________. Chemical reactions Main

The law of conservation of mass states that ___________________ __. Mass/matter/atoms cannot be created or destroyed Main

In a chemical equation, the number of atoms at the beginning of the reaction are _____ the number of atoms at the end of the equation. Equal to Main

Is this equation balanced or unbalanced? N 2 + H 2 NH 3 Unbalanced Main

Why do we have to balance this equation? N 2 + H 2 NH 3 There are less atoms in the products, so it looks like atoms were destroyed in the reaction (which is impossible. ) Main

What is the balanced equation for this reaction? N 2 + H 2 NH 3 N 2 + 3 H 2 2 NH 3 Main

Lemon juice and vinegar are classified as ______. Acids Main

Ammonia is classified as a _____. base Main

Acids have a p. H of ____. Less than 7 Main

Pure water is a neutral substance that has p. H of ____. p. H = 7 Main

Acids usually contain this element. H (Hydrogen) Main

Covalent compounds that are composed of carbon-based molecules are called _______. Organic Compounds Main

Why does Carbon form the backbone of organic compounds? Carbon can form up to 4 bonds. Main

Which of the following is a carbohydrate: sugar, enzymes, cooking oil, DNA? sugar Main

In which group of organic compounds does DNA belong? Nucleic Acid Main

In which cell structure would you find an abundance of phospholipids? Cell membrane Main

Density is ______ per _______. Mass per volume Main

What is the density of an object that has a volume of 200 m. L and a mass of 400 g? 2 g/m. L Main

A cereal box is 5 cm by 4 cm by 2 cm. If its mass is 20 g, what is the density of the box? . 5 3 g/cm Main

The amount of matter in a certain volume is _____. density Main

A liquid has a density of 2 g/m. L. If the mass is 50 g, what is its volume? 25 m. L Main

A buoyant force on an object causes it to ______. float Main

Which liquid is the least dense? LIQUID D LIQUID C LIQUID B LIQUID A Liquid D Main

If a bean floats in Liquid C, what does that say about the bean’s density? LIQUID D LIQUID C LIQUID B LIQUID A Density of Bean = Density of Liquid C Main

If an object weighing 100 N displaces a volume of water with a weight of 30 N, what is the buoyant force on the object? 30 N Main

Which of the following objects will sink in water? . 1 g/m. L . 8 g/m. L 2 g/m. L . 9 g/m. L Main