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All about Matter
Question | Answer |
---|---|
What is matter? | anything that has volume and mass |
The amount of space taken up, or occupied, by an object is known as? | volume |
What is the curve at the liquid's surface called? | meniscus |
A property of matter that can be observed or measured without changing the identity of the matter is called? | physical property |
What are some physical properties to identify or describe matter? | color, density, texture, state (solid, liquid, gas) |
What is density? | the amount of matter in a given space; mass per unit volume |
What is the formula for density? | D = m/v |
What is the unit used to express density? | g/cm³ or g/ml |
What is the amount of matter in an object? | Mass |
What is a chemical property? | a property of matter that describes a substance based on its ability to change into a new substance with different properties |
What are some common chemical properties of matter? | flammability, reactivity with acid, ability to decompose, able to be eaten, ability to rust or react with oxygen |
a change that affects one or more physical properties but does not change the identity of a substance is called? | physical change |
What are some examples of physical change? | cutting hair, grinding chalk into powder, freezing water, mixing oil and vinegar |
What is a chemical change? | when one or more substances are changed into entirely new substances with different properties |
Baking a cake, iron rusting, rotting fruit, copper turning green over time are all examples of? | chemical change |
The properties that are used in identifying a substance, such as density, reactivity with acids, solubility are called? | characteristic properties |
Does the characteristic properties of a substance change if the sample being observed is large or small? | no; the characteristic properties of a substance is always the same regardless of the size of the sample |
How is a chemical change different from a chemical property? | a chemical change is the actual process in which a substance changes into another substance; a chemical property describes a substance's ability to change |