This equation indicates that the reaction gives off heat. What is this type of reaction called? 2C4H10 + ? O2? 8CO2 + 10H2O + heat

a. an exothermic reaction

b. an endothermic reaction

c. absorption reaction

d. precipitation reaction

Why only electrons stick to oil drop in millikan's experiment however protons are also present there? why millikan only used oil? and what is the ability in oil drop that it attracts electron towards itself?

What is the best metal used by the gods?

How many ml of naoh are needed to neutralize 15.0 ml of 0.350m ch3cooh?

True or False If the answer is true, write "true" on the line. If the answer is false, replace the underlined word or phrase with one that will make the sentence correct.

What is the concentration of nitrate ions in a 0.225 msr (no3) 2 solution?

What do chemists use to describe a chemical reaction

When you drop a sugar cube in a glass of water, at first the water doesn't taste sweet. Later, it tastes very sweet. Eventually, the water will taste equally sweet throughout. What term explains molecule movement to maintain a balance?

Using density what is the mass in grams of 150mL of a liquid with a density of 1.4 g/mL

All of the following can be recycled except clothing aluminum cans compact fluorescent bulbs plastic drink bottles

Use Henry's law and the solubilities given below to calculate the total volume of nitrogen and oxygen gas that should bubble out of 1.0 L of water upon warming from 25 ∘C to 50 ∘C.