Which clue can be used to identify a chemical reaction as a combustion reaction?

Oxygen is a product.

A hydrocarbon reacts with oxygen.

Water and carbon dioxide react.

The reaction involves ions.

Which of the following is used to represent each element? formula equation symbol O coefficient

The layer below the active layer of the tundra is called the

How are spoilage bacteria useful

An ice cube is placed on a kitchen counter. Which best describes heat flow in this situation? A. Heat flows from the ice to the counter, causing the molecules in the counter to move more quickly. B.

How many hydrogen atoms are present in 5.00 mg of aspartame?

Which of following statements is true about scientific knowledge? Scientific ideas are not subject to change, so scientific knowledge stays the same. Scientific knowledge is constantly evolving as new observations are made.

Why is ice cream a mixture

Which of the following is a type of cell organelle? A. membrane B. cytoplasm C. DNA D. nucleaus

Electromagnetic forces are the predominant force in holding what subatomic particles together?

When in a compound, the oxidation number of a nonmetal: A). is always fixed and can never be changed B). can only be deduced once all the other oxidation numbers in the equation are totaled C).