subject
Chemistry, 16.07.2019 12:30 22moneymorgan

If a chemical change has taken place, which of these is most likely true? a. original substance can be easily recovered. b. composition of a substance is the same. c. a completely new substance is formed. d. an easily reversible process has taken place.

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 23.06.2019 00:30
Arrange the elements in order of increasing electronegativity. use the periodic table to you arrange the elements. p o k mg
Answers: 2
question
Chemistry, 23.06.2019 01:30
Astudent states that 9.0 g of baking soda will form an unsaturated solution in 100 g of water. what do you need to know to decide whether this statement is correct? a. the temperature of the water and the molar mass of baking soda b. the percent by volume of the solution and the solubility of baking soda c. the temperature of the water and the solubility of baking soda at that temperature
Answers: 1
question
Chemistry, 23.06.2019 01:40
Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon dioxide as shown below. caco3(s) cao(s) + co2(g) the kp for this reaction is 1.16 at 800°c. a 5.00 l vessel containing 10.0 g of caco3(s) was evacuated to remove the air, sealed, and then heated to 800°c. ignoring the volume occupied by the solid, what will be the mass of the solid in the vessel once equilibrium is reached?
Answers: 1
question
Chemistry, 23.06.2019 02:00
Alice did an experiment to find the relationship between the angle at which a ray of light strikes a mirror and the angle at which the mirror reflects the light. she placed a ray box in front of a mirror. she changed the angle at which the light from the ray box struck the mirror and noted the corresponding angle at which the mirror reflected the light. which of the following is the dependent variable in this experiment? the mirror used to reflect the light the ray box used as the source of light angle at which the light from the ray box strikes the mirror angle at which the mirror reflects the light from the ray box
Answers: 2
You know the right answer?
If a chemical change has taken place, which of these is most likely true? a. original substance ca...
Questions
question
Mathematics, 26.11.2020 07:40
Questions on the website: 13722361