An unknown substance has hydrogen ion concentration of [H+]=3.1*10^-8M. Find the pH and classify the substance as acidic or basic

How does the weight of your skin compare to the weight of your brain

For an experiment, you need 0.10 moles of NaCl for a chemical reaction. how much NaCl must you weigh out? A. 0.14g B. 3.2 g C. 8.2 g D. 5.8 g

Which question cannot be answered scientifically? A. How many particles do two gases at the same temperature and pressure contain? B. What happens to a gas at standard temperature and pressure? C.

What's the constant presuure of gas?

Daniel claims that the product of two square roots of integers is always rational. His reasoning is given in the example below.

A5.00 liter ballon of gas at 25 degree Celsius is cool to 0 degrees Celsius. What is the volume (liters) of the ballon?

How much thermal energy (q) is required to heat 15.2 g of a metal (specific heat = 0.397 J/G) from 21.0 degrees C to 40.3 degree C

Two gas jars are connected to each other, but they are separated by a closed valve. One gas jar contains oxygen, and the other is empty. What will happen when the valve is opened?

4. Calculate the final concentration if water is added to 1.5 L of a 12 M NaOH solution to make 3.0 L of a diluted NaOH solution. Your answer

Why is it possible to safely drink a solution that contains a 50:50 mixture of equal concentrations of a strong acid and a strong base, either of which, if ingested separately, would be very caustic and damaging?