4 Lef's say you find a fossil in a layer of shale. How might you determine the age of the shale?

The stopcock between the two reaction containers is opened, and the reaction proceeds using proper catalysts. Calculate the partial pressure of NO after the reaction is complete.

What is entropy Disorder of a system Order of a system Disorder of a surrounding Order of a surrounding

Consider the two electron arrangements for neutral atoms A and B. Are atoms A and B the same element? A - 1s2, 2s2, 2p6, 3s1 B - 1s2, 2s2, 2p6, 5s1 yes or no

What is the change in temperature if 24g of water at 50°C absorbs 985 J of heat energy?

What causes each new row in a periodic table

Coefficients in a chemical equation are used to: balance the number of atoms on both sides of the equation ensure that all subscripts on both sides of the equation are the same indicate energy changes that occur during the reaction indicate the type

What determines your blood cholesterol level?

Describe two ways that water moves through earthy atmosphere in the water cycle.

which of the following questions can use science as a method of inquiry? a. is cloning appropriate b. how can we protect crops from drought c. why is jazz a great type of music d. did dinosaurs exist

How many moles of CO will be produced, if 32.5grams of H2O are produced? C6H6S+6O2=>6CO+3H2O+SO3