metals and water

How can you tell that a metal is reacting with water?

• Colour change
• Bright light
• Fizzing
• It gets colder

Tags

NGSS.MS-PS1-2

What gas is always produced when a metal reacts with water?

• Oxygen
• Carbon dioxide
• Hydrogen
• Carbon monoxide

Which metal is most likely to react with water or acid?

• Copper
• Potassium
• Magnesium
• Iron

What is formed when sodium reacts with water?

• sodium oxide and hydrogen
• sodium hydroxide and hydrogen
• sodium hydroxide and oxygen
• sodium hydroxide and carbon dioxide

Tags

NGSS.MS-PS1-5

What is the symbol equation for the reaction between sodium hydroxide and water?

• 2Na + 2H₂O → 2NaOH + H₂
• Na + H₂O → NaOH + H
• Na + H₂0 → NaCl + CO₂
• 2Na + 2H₂O → 2NaH₂ + O₂

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the state symbol for a solution?

• (S)
• (s)
• (sl)
• (aq)

Which one of the following metals reacts most vigorously with cold water?

• Sodium
• Magnesium
• Copper
• Zinc

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which is the correct word equation for calcium reacting with water?

• calcium + water --> calcium + oxygen + hydrogen

• calcium + water --> calcium hydroxide + hydrogen

• calcium hydroxide + hydrogen --> calcium + water

• calcium + water --> calcium oxide + hydrogen

Which of the following sets of reactants would result actually result in NO REACTION?

• lithium + water --> no reaction

• calcium + water --> no reaction

• iron + water --> no reaction

• gold + water --> no reaction

In the following equation which chemicals are the reactants?

lithium + water --> lithium hydroxide + hydrogen

• lithium and hydrogen

• lithium hydroxide and lithium

• hydrogen and lithium hydroxide

• water and lithium