Investigating a fire scene, you determine several places where fires started. What might you guess about the cause of the fire?

A. It was an electrical fire

B. It was deliberately set

C. An accelerant was used

D. It was an accident

When a mixture is stirred A) the rate of dissolving stops. B) the rate of dissolving will increase. C) the rate of dissolving will decrease. D) the rate of dissolving will remain constant.

How many valence electrons are transferred from the calcium axiom to iodine?

What is the chemical formula for gallium chlorine?

What is the difference between atom A and atom B? A - 1s22s22p63s1 B - 1s22s22p65s1 Answers to choose from: 1) Atom B has lost some inner electrons. 2) The outer electron of atom B has moved to a lower energy state.

The nucleus of an atom of Cobalt-58 contains: 1. 27 protons and 31 neutrons 2. 27 protons and 32 neutrons 3. 59 protons and 60 neutrons 4.60 protons and 60 neutrons

The organisms living together in a community are interdependent upon one another. Look at the food web below. In which of the following ways is a puffin dependent upon salmon? A. Puffins have a commensalistic relationship with salmon. B.

2) Which of the following is a true statement? A: All the atoms of an element must be identical. B: Compounds may be separated by physical means. C: Mixtures may not be separated. D: Homogeneous is one type of compound.

How to tell the difference between ionic and covalent bonding?

The combustion of propane may be described by the chemical equation C3H8 (g) + 5O2 (g) ⟶3CO2 (g) + 4H2O (g) C3H8 (g) + 5O2 (g) ⟶3CO2 (g) + 4H2O (g) How many grams of O2 (g) O2 (g) are needed to completely burn 83.3 g C3H8 (g) ?

Was the relationship among temperature, heat, and thermal energy?