A student described two properties of a substance shown below which of the following is true about the two properties described
in the table? x-the substances catches fire easily
y-a substance spontaneously explodes when exposed to other substances
a/ both are physical properties
b/both are chemical properties
c/x is a chemical property and y is a physical property
d/x is a physical property and y is a chemical property
The fact that the substance catches fire easily and explodes when it comes in contact with other materials is as a result of some kind of chemical reactions which are spontaneous and highly exothermic. Chemical properties of a substance are the properties it exhibits when it interacts chemically with other substances. The both properties described above are due to chemical interactions of the substances with other substances hence they are chemical properties.
catches fire easily, there is a chemical in the substance that reacts to the flame, and a key to it being a chemical property is when exposed to other substances, there is a chemical in the other substances that makes it chemically react
Qual das alternativas a seguir é uma mistura homogênea?
Escolha uma:a. Mercúrio metálico e água. b. Gelo e água líquida. c. Areia e carvão em pó. d. Nitrogênio gasoso e vapor d’água. e. Poeira e ar atmosférico.
Distillation is the process by which sugar can be separated from the sugar solution.
Explanation:
Distillation, or classical distillation, is the process of separating the components or substances from a liquid mixture by using selective <u>boiling and condensation.</u>
As water freezes, a crystalline structure preserved by hydrogen bonding is formed by water molecules. Less dense than liquid water is solid water, or ice. Ice is less dense than water since molecules are pulled farther apart by the direction of hydrogen bonds, which decreases density.
