The rate law for the decomposition of phosphine (PH3) is below. It takes 120. s for 1.00 M PH3 to decrease to 0.250 M. How much time is required for 4.00 M PH3 to decrease to a concentration of 0.320 M?

When is it necessary to draw a multiple bond in a lewis structure?

Describe what water does to pavement when it continually freezes and thaws

Identify all of the physical changes that take place during the making of the omelet. Sara is making an omelet. She cracks open 6 eggs and places them in a bowl. She adds some milk, salt, and pepper to the eggs and mixes them together with a whisk.

Is a salt neutral or a charged particle?

What are energy levels?

What changes do you shown in the model

Select all the correct answers. What are the products of the acid-base reaction between HClO3 and LiOH? LiClO4 H2O LiH LiClO3 HClO4

Under what conditions will light bend? a) Never b) When it slows down while going through space c) When it speeds up while going through space d) When it passes from one medium to another

Cells can manipulate the free energy of reactions by: (Select all that apply) Changing the concentrations of products and reactants Changing the concentration of the enzyme involved in the reaction Using enzymes A.

NH3 is an example of A. an element. B. an atom. C. a mixture. D. a compound.