Which important change in electronic devices, such as televisions and computers, is a result of the use of metalloids as semiconductors?

What happens to the density of most substances as they cool and solidify?

How many grams of nitric acid will react completely with a block of iron metal that is 4.5 cm by 3.0 cm by 3.5 cm, if the density of iron is 7.87 g/mL? Show all steps of your calculation as well as the final answer. Fe + HNO3 → Fe (NO3) 3 + H2

Which solution when mixed with a drop ofbromthymol blue will cause the indicator to change from blue to yellow

What happens to the particles when a pure substance melts

497.680 to the nearest gram (1 g)

Dalton's atomic theory

Describe how food is digested and absorbed

If a solution A has twice as much solute as solution B. Is it possible for the solutions to have the same concentration?

Chris is studying oxidation and reduction reactions. Which of the following could she use as an example of an oxidation reaction?

In a short circuit as the resistance decreases what happens to the current?