What does CaCO3 represent?

A chemical reaction.

A chemical subscript.

A chemical formula.

A chemical symbol.

How many electrons would be represented in the lewis dot notation for an atom of oxygen? A, 2. B. 6. C. 8. D. 18

Abiotic factors in an environment include A) producers. B) decomposers. C) predators and prey. D) sunlight and water. Abiotic factors in an environment include

Why is it important to living things that water is bonded by h bond and not by covalent or ionic one

The notation for the nuclide gives information about

One of the hydrates of MnSO4 is manganese (II) sulfate tetrahydrate. A 71.6 gram sample of MnSO4 4 H2O was heated thoroughly in a porcelain crucible, until its weight remained constant.

What do nucleus act as

Change of state may occur when?

During the combustion of 2.00 g of coal, the temperature of 500 g of water inside the calorimeter increased from 25.0°c to 43.7°c. the specific heat of water is 4.18 j/g·°c. how much heat did the reaction generate?

Catalysts are substances that increase the rate of reaction but can be recovered unchanged at the end of the reaction. Catalysts can be classified as either homogeneous (same state as reactants) or heterogeneous (different state than reactants).

How many molecules are there in 79g of Fe2O3?