What are characteristics that can change without changing the identity of a substance? a) Chemical properties

b) rotting properties

c) physical properties

b) rusting properties

Which option identifies the field of science that supports the interests of the person in the following scenario? Tina's family is from South America.

If an atom has 8 protons, how many electrons will it have in its normal state?

A mixture of uneven distribution and easy separation is: - heterogeneous - a solution - homogeneous - a standard

What are all the different types of chemical change?

An 8 N force is applied to a 2 kg object. What is the magnitude of the object's acceleration? A. 0.25 m/s² B. 4 m/s² C. 6 m/s² D. 16 m/s²

What two items must be equal for a nuclear equation to be balanced?

When a calorimeter is used, no thermal energy is exchanged between the contents of the container and the outside air.

When adjusted for any changes in δh and δs with temperature, the standard free energy change δg∘t at 2400 k is equal to 1.22*105j/mol. calculate the equilibrium constant at 2400 k.?

What symbol represents "yields" or "forms" in a chemical reaction?

Hydrazine (N2H4) is a chemical compound used in rocket fuel. Which of the following represents the correct balanced equation for the reaction of hydrazine liquid with oxygen gas to produce nitrogen gas and steam? A.