Chemical Properties of Matter

Which list contains an element, compound and mixture?

• air, water, oxygen

• oxygen, glass, water

• plastic, copper, iron

• silver, gold, hydrogen

Which of the following is true about all mixtures?

• They can be separated by chemical means.

• They exist as suspensions.

• They have different properties from their constituents.

• They are obtained by combining constituents in variable proportions.

Which statement about the Periodic Table is correct?

• Elements in Group 1 are all non-metals.

• There are both metals and non-metals in Group 18.

• The horizontal row of the Periodic Table is known as the period.

• The elements in the Periodic Table are arranged in alphabetical order.

Which of the following statements is true?

• The components in a compound are not in a fixed ratio.

• Compounds have the same properties as their elements.

• A chemical reaction takes place when a compound is formed.

• Compounds can be easily broken down by physical methods.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Three samples X, Y and Z are represented in the diagrams below.

• X: elements Y: elements Z: elements

• X: compounds Y: elements Z: mixture

• X: compounds Y: mixture Z: mixture

• X: mixture Y: mixture Z: mixture

Tags

NGSS.MS-PS1-1

Which of the following groups consist of an element, a compound and a mixture?

• salt, glass and steel

• oxygen, air and milk

• pencil lead, plastic and concrete

• nitrogen, water vapour and air

Titanium is in Group 4 and Period 4 of the Periodic Table. What is the name of the element in Group 4 and Period 6?

• Molybdenum

• Chromium

• Rutherfordium

• Hafnium

The diagram shows parts of the Periodic Table. Which two elements have similar chemical properties?

• P and R

• Q and T

• R and Q

• S and T

Emma wants to dissolve some sugar in her tea as quickly as possible.

Which action will not help her do so?

• increasing the temperature of the tea

• stirring the tea more quickly

• using a bigger cup

• using smaller granules of sugar

Tags

NGSS.MS-PS1-4

Zinc is a silvery solid at room temperature and chlorine is a yellowish gas at room temperature. Zinc chloride is formed when zinc is heated in chlorine gas. It is off-white in colour and a solid at room temperature.

What can we conclude about compounds based on the description above?

• Compounds are broken down by chemical methods.

• Compounds are solids at room temperature.

• Compounds have a fixed composition by mass.

• Compounds have different properties from its constituents.

Tags

NGSS.MS-PS1-2