Describe the ways you can know that a chemical reaction has occurred.

What is gentle breeding

What rules should you follow when adding and subtracting? Check all that apply. 1. The exponents in scientific notation should be added or subtracted. 2. The exponents need to be the same so the leading numbers can be added or subtracted. 3.

If the concentration of a reactant in a mixture is doubled and the reaction rate increases by a factor of eight, the reaction order with respect to that reactant is

If an element has 4 protons and 5 neutrons its mass number is

Which of the following elements has the lowest electronegativity? a. bromine b. lithium c. carbon d. fluorine

According to the ph scale, what is the approximate ph of acid rain? a. 4.0 b. 4.5 c. 5.0 d. 5.5

You find a little bit (0.150g) of a chemical marked Tri-Nitro-Toluene, and upon combusting it in oxygen, collect 0.204 g of CO2 and 0.030 g H2O (we'll assume that these are the products, along with nitrogen).

What reaction occurs when two amino acids are put together?

A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains of water at. During the reaction of heat flows out of the bath and into the flask. Calculate the new temperature of the water bath.

An aluminum can has a height of 4.83 inches, a diameter of 2.60 inches, and a uniform wall/end thickness of 0.0112 inches.