The flame from my candle gives off black smoke heat and light what type of changes do these indicate

What is a chemical bond? a. the force that holds together the elements in a compound b. a substance that's composed of atoms c. a representation of chemical properties d. the attraction of two atoms that holds the atoms together?

What type of compound is almost always found as a solid? Metallic Covalent Nuclear Ionic

What type of reaction is shown in this thermochemical equation? A + B + heat → C + D endothermic combination decomposition exothermic

Is 7 bean soup a mixture compound or element

Use this diagram of an animal cell to answer the question. Where does the second stage of cellular respiration occur? w x y z

A covalent bond is best described as Question 1 options: the sharing of electrons between atoms. the transfer of electrons. a bond between a metal and a nonmetal. a bond between a metal and a polyatomic ion.

From the list below, choose which groups are part of the periodic table

Gypsum is a mineral that is used in the construction industry to make drywall (sheetrock). The chemical formula for this hydrated compound is CaS04 • 2H20. A hydrated compound contains water molecules within its crystalline structure.

What is plasma from which clotting factors have been removed called?

Genetic evidence supports which of the following explanations for the presence of 13 different finch species on the Galápagos Islands? A.