What term defines a hydrocarbon with at least one double bond between carbons?

Paul's science class fills an ice cube tray with water. The tray is placed in a freezer for a day. The water freezes forming ice. The tray is removed from the freezer and left on a counter for a day.

Define a compound and a mixture. Explain how they are different.

What is A for ClO3, the chlorate ion?

In a zinc-copper cell, zn | zn2 + (1m || cu2 + (1m | cu, which electrode is negative?

Calculate the molarity of a solution made when 13 moles of NaOH is dissolved in water to make 2.0 liters of solution. Report your answer to the tenths place.

A scientist observed a 5-mL sample of an unknown substance. It is a blue liquid with a density of 1.2 g/cm. the substance reacts with carbon dioxide.

9.87 g of calcium sulfate and 12.05 g of potassium react. What is the total amount of potassium sulfate that can be produced?

What volume of water vapor measured at STP is produced by the combustion of 4.00 g of natural gas (CH4) ? (you must write and balance the equation first)

How many moles of 0.225 m ca oh 2 are present in 0.350 l of solution

A solute and a solvent are mixed together. What requirement would enable you to predict the the substances would form a homogeneous solution?