Which of the following was not part of democritus' theory of matter?

1. matter consists of tiny particles called atoms

2. atoms retain their identity in a chemical reaction

3. atoms are indestructible

4. atoms are indivisible

Which of the following is an example of chemical energy? Gasoline A nuclear power station A wound clock A coiled spring

How many moles are in 6.8 x 1023 molecules of NaOH?

Apply Concepts Why do most tall mountains have cooler climates than the areas at their bases?

If your heart beats an average of 68 times per minute, how many times will your heart beat in an hour? In a day? In a week? Show all work

What characteristics of copper and aluminum causes them to be good conductors what is the effect of this

Which earth cycle does the suns energy drive

How many moles are in 10 grams of CaCl2?

Which is the correct formula for phosphorus pentachloride? PCl4 because a subscript of 4 indicates four Cl atoms PCl5 because a subscript of 5 indicates five Cl atoms P5Cl because a subscript of 5 indicates five P atoms P5Cl3 because a subscript of

Why are the elements in groups 3 to 12 often used to make dyes?

What is not needed for corrosion of metals? a. oxygen c. water b. ions d. sunlight