What volume of oxygen (O2) gas is equal to 4.5 moles at STP?

Which structure do both nonvascular plants and seedless vascular plants have in common

Which of these are made up of matter? Check all that apply. parts of outer space where there is no air or atoms salt dissolved in water air in the lower levels of the Earth's atmosphere leather made from cow hides metal after if has been molded

Explain the difference between a body fossil and a trace fossil. Give one example of each.

Identify the compound whose solubility decreases with increasing temperature.

Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of Al (C2H3O2) 3 and LiNO3 are mixed.

A piece of glass with a mass of 32.50 g specific heat of 0.840 J/g*°C and an initial temperature of 115 °C was dropped into a calorimeter containing 57 g of water (specific heat 4.184 J/g*°C).

Which of the following is the most likely description of the product or products of a double-displacement reaction? A) one new compound B) two new compounds C) oxygen and energy D) one new compound and an element

A balloon is filled with 12L of air at a pressure of 2 atm. What is the volume of ballon if the pressure is changed to 3 atm?

What ionic bond occurs between what particles? A. Two Negative Ions B. A positive and negative ion C. Two positive ions D. Two neutral atoms

Which of the following are good traits of a hypothesis? it will be able to be tested it can predict an outcome it will explain the observations all of these