Matter & Chemistry Essentials

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Quick quiz on symbols, reactions, and phase changes.

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Elisha Ochieng'

Kenia

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Matter & Chemistry EssentialsVersión en línea Quick quiz on symbols, reactions, and phase changes. por Elisha Ochieng' 1 What is the chemical symbol for Iron (Fe) used universally? a Fr b In c Fe d Ir 2 What is Rule 1 for writing chemical symbols? a All lower-case b First letter must be capital c All letters capital d Second letter capital 3 If a symbol has two letters, how should they appear? a First lower-case b First cap, second lower-case c Both lower-case d Both upper-case 4 In a chemical word equation, what does the arrow mean? a Reactants disappear b Heat is applied only c No reaction occurs d Substances change to form products 5 What is diffusion in liquids and gases? a Movement from high to low concentration b No movement c Only effective in solids d Movement from low to high 6 During melting in a heating curve, what happens to temperature? a Remains constant at the melting point b Oscillates wildly c Drops below freezing d Keeps rising steadily 7 Impurities in a liquid affect melting point how? a Raise melting point b Lower melting point c Always stops melting d No effect 8 What is a physical change? a No new substance is formed b Energy released only c New substance forms d It always irreversible 9 Which components form the Fire Triangle? a Heat, Pressure, Time b Fuel, Heat, Oxygen c Oxygen, Water, Spark d Water, Fuel, Oxygen 10 Class B fires involve which fuel type? a Electrical equipment b Flammable liquids c Ordinary combustibles d Gaseous flames only

Matter & Chemistry EssentialsVersión en línea

Quick quiz on symbols, reactions, and phase changes.

por Elisha Ochieng'

What is the chemical symbol for Iron (Fe) used universally?

What is Rule 1 for writing chemical symbols?

All lower-case

First letter must be capital

All letters capital

Second letter capital

If a symbol has two letters, how should they appear?

First lower-case

First cap, second lower-case

Both lower-case

Both upper-case

In a chemical word equation, what does the arrow mean?

Reactants disappear

Heat is applied only

No reaction occurs

Substances change to form products

What is diffusion in liquids and gases?

Movement from high to low concentration

No movement

Only effective in solids

Movement from low to high

During melting in a heating curve, what happens to temperature?

Remains constant at the melting point

Oscillates wildly

Drops below freezing

Keeps rising steadily

Impurities in a liquid affect melting point how?

Raise melting point

Lower melting point

Always stops melting

No effect

What is a physical change?

No new substance is formed

Energy released only

New substance forms

It always irreversible

Which components form the Fire Triangle?

Heat, Pressure, Time

Fuel, Heat, Oxygen

Oxygen, Water, Spark

Water, Fuel, Oxygen

Class B fires involve which fuel type?

Electrical equipment

Flammable liquids

Ordinary combustibles

Gaseous flames only

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Matter & Chemistry Essentials

Test

Sobre esta actividad

Creada por

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Matter & Chemistry EssentialsVersión en línea

por Elisha Ochieng'

What is the chemical symbol for Iron (Fe) used universally?

What is Rule 1 for writing chemical symbols?

If a symbol has two letters, how should they appear?

In a chemical word equation, what does the arrow mean?

What is diffusion in liquids and gases?

During melting in a heating curve, what happens to temperature?

Impurities in a liquid affect melting point how?

What is a physical change?

Which components form the Fire Triangle?

Class B fires involve which fuel type?

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