Which of the statements is true about chemical reaction rates

the reaction rates can change

the reaction rates are always constant

the reaction rates cannot increase

the reaction rates cannot decrease

Arrange the following measurements, in seconds, from least bias to the greatest bias. 6.63+/-0.01, 6.6+/-0.1, 6.52+/-0.05, 6.4+/-0.5

Molarity is a quantity in chemistry that has the unit of moles per liter (mol/l) : if a sample of Chemical X consists of 32.22 moles and has a volume of 850mL, what is the molarity of this sample?

How many grams of carbon dioxide would be formed if 38.9 g C2H2 reacted completely with oxygen

A lightbulb filled with argon gas has a volume of 75 milliliters at STP. How many moles of argon gas does the lightbulb contain?

A bottle of fertilizer contains a 6.0 M solution of ammonium nitrate (NH4NO3). If you wanted to fertilize your garden with 15.0 L of a 0.18 M solution, what quantities of the liquid fertilizer and water would you mix together to spray on your garden

Select the answers below that represent the ionic compounds in this list: na2so4 h2so4 ch3-ch3 n2o4 cacl2 ca3 (po4) 2

What is a physical property of water? A) liquid at room temperature B) not flammable C) pH of 7 D) reacts with sodium

If 0.360 J of heat is added to 0.7402 g of water, how much will the temperature increase?

Which of the following are properties of mechanical waves?

Why LDL called "bad" cholesterol?