A piece of limestone erodes due to acid rain. This process can be best described as a ...

a. slow chemical change.

b. rapid chemical change.

c. slow physical change.

d. rapid physical change

What is the period of below average temperatures called

What consume energy from dead organism

A specific, electrically neutral atom of boron has 5 protons, 5 electrons, and 6 neutrons. what is the mass number of this atom of boron? 6 5 11 16

What is the arrangement of positive metal ions compared to valence electrons in a metallic bond? A. The valence electrons are free to move between different ions, while the positive metal ions are fixed in place. B.

What would happen to an enzyme and its reaction if you were to freeze? A. Slow B. Nothing C. Fast

Select all the statements that are true about electron configurations: A) The electron configuration of an atom describes the energy of electrons in the atom.

Acid is added to a beaker containing crushed marble. what effect does stirring this mixture have on the system?

How many milliliters of 0.200 M NH4OH are needed to react with 12.0 mL of 0.550 M FeCl3? FeCl3 + 3NH4OH Fe (OH) 3 + 3NH4Cl

Based on the law of conversation of mass, how does the mass of reactants compare with the mass of products in a given reaction?

How many moles of sucrose are dissolved in 520 mL of solution if the solution concentration is 0.150 M