Table of Contents
- 1 What is the first step in the process of distillation?
- 2 What occurs when one or more substances change to produce one or more different substances?
- 3 What is the symbol of solid?
- 4 What is the process called when a solid turns into a liquid?
- 5 Which is an example of the process of condensation?
- 6 How does condensation lead to the formation of fog?
What is the first step in the process of distillation?
The process of distillation begins with heating a liquid to boiling point. The liquid evaporates, forming a vapor. The vapor is then cooled, usually by passing it through pipes or tubes at a lower temperature. The cooled vapor then condenses, forming a distillate.
What term is used to describe a solid substance formed in a chemical reaction as in the figure shown?
A precipitate is a solid substance that forms in a solution. The figure below shows some of the signs that a chemical reaction is happening. Some chemical reactions produce a precipitate.
What is matter that flows but has a definite volume?
liquid. matter that flows but has definite volume. mass. amount of matter that an object contains. element.
What occurs when one or more substances change to produce one or more different substances?
What are the basics of chemical reactions?
- A chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products.
- A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.
What are the 3 stages of distillation?
The overall process of alcohol distillation can be summed up into 3 parts: Fermentation, Distillation, and Finishing.
Which mixtures can be separated by distillation?
Fractional distillation is a method for separating a liquid from a mixture of two or more liquids. For example, liquid ethanol can be separated from a mixture of ethanol and water by fractional distillation. This method works because the liquids in the mixture have different boiling points.
What is the symbol of solid?
s
Using state symbols in chemical equations
| State symbol | Meaning |
|---|---|
| (s) | solid |
| (l) | liquid |
| (g) | gas |
| (aq) | aqueous (dissolved in water) |
What would indicate the formation of a new substance?
Yes; new substances formed, as evidenced by the color changes and bubbles. Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change.
Has definite volume and can flow?
A solid has definite volume and shape, a liquid has a definite volume but no definite shape, and a gas has neither a definite volume nor shape. The change from solid to liquid usually does not significantly change the volume of a substance.
What is the process called when a solid turns into a liquid?
The process of a solid becoming a liquid is called melting (an older term that you may see sometimes is fusion). For any pure substance, the temperature at which melting occurs — known as the melting point — is a characteristic of that substance. It requires energy for a solid to melt into a liquid.
Is the ability to promote change or work?
The ability to do work or cause change is called energy. Energy comes from many sources, and is found in two main forms. One form, potential energy, is energy that has the potential, in an object at rest, to do work later.
What is it called when one or more substances rearrange to form different substances?
The process by which the atoms of one or more substances are rearranged to. form different substances is called a chemical reaction.
Which is an example of the process of condensation?
The air is full of water, as water vapor, even if you can’t see it. Condensation is the process of water vapor turning back into liquid water, with the best example being those big, fluffy clouds floating over your head.
How are water molecules arranged in the vapor form?
Water molecules in the vapor form are arranged more randomly than in liquid water. As condensation occurs and liquid water forms from the vapor, the water molecules become more organized and heat is released into the atmosphere as a result. The little cloud that could—but why?
How are clouds formed by the condensation process?
The clouds formed by condensation are an intricate and critical component of Earth’s environment. Clouds regulate the flow of radiant energy into and out of Earth’s climate system. They influence the Earth’s climate by reflecting incoming solar radiation (heat) back to space and outgoing radiation (terrestrial) from the Earth’s surface.
How does condensation lead to the formation of fog?
Fog develops when air having a relatively high humidity comes in contact with a colder surface, often the Earth’s surface, and cools to the dew point. Additional cooling leads to condensation and the growth of low-level clouds. Fog that develops when warmer air moves over a colder surface is known as advective fog.