Answer:
Explanation:
The melting point of a substance is the temperature at which its melt. The state of a substance is dependent on it's melting temperature. Generally, melting point above 25 °C is a solid.
This means phenol is a solid
Duodecane has melting point below 25 °C hence it is either a liquid or gas. However its boiling point of 216 °C means it would require higher temperature to boil it. Since 25 °C is less than 216 °C it means that it would remain in the liquid state.
Methane has melting point below 25 °C hence it is either a liquid or gas. However its boiling point of -164 °C means it boils easily even at very low temperatures. Since 25 °C is greater than -164 °C it means that it would exist in the gaseous state
An Olympic decoration is granted to effective contenders at one of the Olympic Amusements. There are three classes of decoration: gold, granted to the victor; silver, granted to the first sprinter up; and bronze, granted to the second sprinter up.
Answer:
Scientific laws or laws of science are statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena.
Explanation:
hope it's help
Answer:
Subtract the mass of the CuSO4⋅ 5H2O from the mass of CuSO4 is the right one
This question is incomplete because you lack the options. But it can be answered based on my knowledge.
Two types of mixture could be: homogeneous and heterogeneous
A mixture is a term that refers to the combination of two or more components joined but not chemically combined. Mixtures can be classified as follows:
- Homogeneous: Are characterized by having a uniform texture and appearance, their components are not distinguished.
- For example: water + grapes = wine
Homogeneous mixtures can be:
- Solutions: The mixtures formed are characterized by being formed with components that do not react chemically with each other, but that can modify their physical properties when they become part of the solution.
- For example: coffee + milk = Coffee
There are also Colloids, a type of mixture formed by particles of one or more substances that are dispersed in another substance called a dispersing medium.
- For example Gelatin powder + Water = Gelatin.
They are the intermediate mixtures between homogeneous and heterogeneous.
- Heterogeneous: Are mixtures in which it is possible to observe their components due to the discontinuity with the naked eye.
- For example Milk + cereal = Cereal
Learn more in: brainly.com/question/24713315
