I found a type of rock in the woods it's kinda rough black with some purple like a lavender purple and i can break it into pieces what could it be?

What is stored in carbon bonds? Wate water energy glucose ATP

Which is most likely to happen during a single-displacement reaction? A. A compound will break apart into two or more products. B. A metal will replace a nonmetal in a compound C. A metal replaces another metal in a compound D.

What volume of hydrogen gas is evolved from a reaction between 0.52 g of Na and water? This gas is collected at 20 C and 745mmHg

What must occur in order for a gas-discharge lamp to produce light?

What are some similarities between weathering and erosion?

Which statement best describes a mole?

The data below were collected for the following reaction at 500 ∘C: CH3CN (g) →CH3NC (g) Time (h) [CH3CN] (M) 0.0 1.000 5.0 0.794 10.0 0.631 15.0 0.501 20.0 0.398 25.0 0.

How do i convert 3.00 moles H2 to molecules?

How can you use the chemical formulas for sucrose (C6H, 20,) and rust (Fe, O,) to classity them ionic or molecular compounds?

What is true of energy as is passes through an ecosystem? a. All of the energy in an organism is used by the animal that eats it. b. Any stored energy in an organism is used by the animal that eats it. c.