Eva pumps up her bicycle tire until it has a gauge pressure of 413 kilopascals. If the surrounding air is at standard pressure, what is the absolute pressure in the bicycle tire?

A. 33.9 kPa

B. 49.7 kPa

C. 312 kPa

D. 514 kPa

Round 0.0645 g to 2 significant figures

How many liters of chlorine gas, at standard temperature and pressure, will react with 15.5 grams of potassium metal? Show all of the work used to solve this problem. 2K + Cl2 yields 2KCl

Which of the following would most likely contain a fossil? intrusive igneous rock extrusive igneous rock chemical sedimentary rock organic sedimentary rock

Why are liquids well suited for hydraulics? Liquids have low densities. Liquids are incompressible. Liquids change volume easily. Liquids have few molecules.

The is a measure of how acidic or basic a solution is.

How much heat is needed to raise the temperature of 75 g of a substance by 15 C when the specific heat is 0.92 J/g-C?

A nitric acid solution flows at a constant rate of 5L/min into a large tank that initially held 200L of a 0.5% nitric acid solution. The solution inside the tank is kept well stirred and flows out of the tank at a rate of 10L/min.

How many molecules are in 237g (about a cup of water)

3. A compound was analyzed and found to contain 9.8 g of nitrogen, 0.70 g of hydrogen, and 33.6 g of oxygen. What is the empirical formula of the compound?

A 126-gram sample of titanium metal is heated from 20.0°C to 45.4°C while absorbing 1.68 kJ of heat. What is the specific heat of titanium?