Naturwissenschaften Klasse 5–6

Gr 8 - L1 - Chemical Properties of Substances Elaborate

Group Activity

Geteilt von Amro Abdoun vor 2 Stunden 10 F 0 Mal übernommen 2 Spiele 2 Schüler haben gespielt

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Which of the following best defines a chemical property?

A A characteristic that describes how a substance interacts with other substances to form new substances.

B A characteristic that describes the physical state of a substance at room temperature.

C A characteristic that can be observed without changing the substance's identity.

D A characteristic that measures how much matter is in a substance.

Which of the following is an example of a chemical property?

A Flammability

B Density

C Color

D Melting point

A student observes that a shiny iron nail left outside becomes covered with a reddish-brown flaky substance. What type of change has occurred?

A Chemical change, because the nail became heavier.

B Chemical change, because a new substance (rust) is formed.

C Physical change, because the nail's shape changed.

D Physical change, because the iron is still iron.

Which of the following properties is a physical property, not a chemical property?

A Ability to rust

B Flammability

C Reactivity with acid

D Boiling point

When magnesium burns in air, it produces a bright white light and a white powder. Which of the following best explains why this is a chemical change?

A A new substance with different properties is formed.

B The magnesium changes state from solid to gas.

C The magnesium becomes hotter.

D The magnesium's shape changes.

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