Reactivity Of Metals

Hematite is a natural compund found in the Earth’s crust. What are the elements that formed the hematite?

• Iron and sulphur

• Stanum and oxygen

• Iron and oxygen

• Silicon and oxygen

Tags

NGSS.MS-PS1-1

Calcium carbonate is a natural compound that consists of a combination of several elements. Which elements combine in calcium carbonate?

• Calcium

• Carbon

• Oxygen

• Hydrogen

Tags

NGSS.MS-PS1-1

What are P and Q?

• P: acid, Q: carbon dioxide

• P: alkali Q: carbon dioxide

• P: acid, Q: hydrogen

• P: alkali, Q: hydrogen

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

• X: lead, Y: copper

• X: lead, Y: iron

• X: zinc, Y: copper

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

• Mineral X is an element

• Mineral X is a compound

• Mineral X is a mixture of metal and carbonate

• Mineral X does not decompose when heated

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

NGSS.MS-PS1-4

Which of the following metals can be extracted through electrolysis of molten ores?

• Tin

• Magnesium

• Zinc

• Copper

Tags

NGSS.HS-PS2-5

Choose the elements

• Iron

• Quartz

• Bauxite

• Silver

Tags

NGSS.MS-ESS3-1

The number of minerals in Earth’s crust is the same as the number of elements.

• TRUE

• FALSE

Tags

NGSS.MS-PS1-1

Aluminium ore is a mineral compound in Earth’s crust.

• TRUE

• FALSE

Tags

NGSS.MS-ESS3-1

Calcium oxide that is used to reduce the acidity of soil is basic

• TRUE

• FALSE