True or False? Buoyancy is an upward force exerted by a fluid on a submerged object.

Fires in forests can sometimes be stopped by cutting down trees to make a gap called a for break. Which part of the fire triangle does this remove?

Gasoline has a density of. 74g/mL. How many milliliter if gasoline have a mass of 2.5kg?

Martina has a sample of an unknown substance, she measures the substance, its mass is 13.5 grams, and its volume is 5cm^3 which metal might her sample be made of? silver density: 10.49 g/cm^3 copper density: 8.96 gm/cm^3 iron density: 7.

When an ionic bond forms between lithium (Li) and fluorine (F), which of the following occurs? F loses one electron. F loses two electrons. F gains one electron. F and Li share electrons.

How much energy is needed to change 70g of ice at 0ºC to water at 90°C?

A chemist uses 0.25 L of 2.00 M H2SO4 to completely neutralize a 2.00 L of solution of NaOH. The balanced chemical equation of the reaction is given below. What is the concentration of NaOH that is used?

How to find the number of neutrons in an atom

A balanced chemical equation indicates both the number of particles of reactants and products and the number of a. orbits. c. nuclei. b. electrons. d. moles

To squeeze a gas into a smaller space

Why does soda fizz when you poor it into a cup?