What volume does 0.305 moles of hydrogen gas (H2) occupy at 40 degrees Celsius and 1.46 atm pressure?

Explain what happens to energy and matter during a chemical reaction. Be sure to use complete sentences.

An 1.04-L sample of gas at 759 mm Hg pressure expanded until its volume is 2.24 L. What the pressure in the expanded gas sample at constant temperature) ?

What happens when light strikes a dark heavy object

Angie mixes the fertilizer for her plants at the beginning of the week. She puts 40 g of the fertilizer-water solution in each of seven closed containers and uses one container each day to water her plant.

Of the following elements, which one has the smallest ionization energy? a. boron c. aluminum b. carbon d. silicon

Identify the product of radioactive decay and classify the given nuclear reactions accordingly.

If a 860. ml of linseed oil has a mass of 680 g, what is the density of the oil

Without any force to change it, an object at rest stays at rest and an object in motion stays in motion. This demonstrates which of Newton's Laws? Question 3 options: (A) Newton's First Law (B) Newton's Second Law (C) Newton's Third Law

You are examining the DNA sequences that code for the enzyme phosphofructokinase in skinks and Komodo dragons.

Scientists are often interested in knowing the molar heat of combustion the heat released during the combustion of one molar of a substance use a periodic table to find molar masses. How many moles of ethanol are present in the sample? ? Mol