Larissa pumps up a soccer ball

a fire truck siren siren getting louder as it braces towards you and quieter as it moves away is called

Gasoline (which can be considered to be octane, C8H18) burns in oxygen to produce carbon dioxide and water. What volume (L) of oxygen at STP is necessary to react with 1.0 gal of gasoline? (The density of gasoline is 0.81 g/mL. 1 gal = 3.78 L)

How do I convert moles to atmospheres

Using the periodic table as a reference, which elements could bond to form a compound most like NaCl? Question 3 options: Hydrogen (H) and Oxygen (O) Potassium (K) and Fluorine (F) Magnesium (Mg) and Iodine (I) Lithium (Li) and Sulfur (S)

The proportion of dissolved substances in seawater is usually expressed in

In what applications might coal replace petroleum based fuel

How many molecules are in 7.5 mol of h2o

An electron moved from a lower energy level to a higher energy level. What most likely happened during the transition? A random amount of light was released. A fixed amount of energy was absorbed. A fixed amount of energy was released.

Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of hydrogen gas are formed when 57.1 grams of sodium are added to water?

The distance from dalton, ga to Dallas, tx is 1308 km. What is the distance in miles