Chemical reactions, Combustion, Oxidation, Fermentation | Baamboozle - Baamboozle

0%

0 0 0

Back Restart

Which of the following can you separate with a magnet? Metal and Metal / Metal and plastic / Metal and sand /

Both metal and plastic and metal and sand

True or false: There are 3 types of mixtures.

False, there are 2 types (homogeneous and heterogeneous)

What do you call this? Water / waiter/ H2O / wait

Water and H2O

Metals and food oxidize when... (A) They are exposed to air / (B) They are exposed to water / (C) They are brought close to each other / (D) They are exposed to oxygen

A. They are exposed to air.

True or false: matter is ONLY made up of heterogeneous mixtures.

False - there are also homogeneous mixtures.

TRUE OR FALSE : Soda with ice is an example of a homogeneous mixture

False - the ice can be separated so it's HETEROgeneous!

Mixtures are __________ combinations of ___________.

Physical combinations of more than one substance

WHAT CAUSES chemical reactions?... (A) Light and water /(B) heat and oxygen / (C) light and heat / (D) Fire and earth

B. Heat and oxygen

How many types of chemical reactions are there? (A) 5 - five / (B) 10 - ten / (C) 3 - Three / (D) 4 - four

C - 3 (three)

Combustion is... (A) Exothermic - produces heat / (B) Endothermic - absorbs heat / (C) Exothermic - surroundings get hotter / (D) Both A and C are correct.

D. Both A and C are correct.

All matter is made up of ...

Atoms and molecules

When a chemical reaction occurs, it... (A) Produces the same things / (B) changes the properties of a substance / (C) Produces something different / (D) destroys things / (E) both B and C

Both B and C are correct

The types of chemical reactions are: (A) solid, liquid and gas / (B) Evaporation, digestion and magnetic separation / (C) Elements, compounds and mixtures / (D) Oxidation, combustion and fermentation

D. Oxidation, combustion and fermentation

The symbol for gold on the periodic table is...

Au

Water is made up of...

2 hydrogens and 1 oxygen

TRUE OR FALSE - Sugar dissolving in water is NOT a chemical reaction.

True - nothing changes and nothing different is produced.

True or False? Water can oxidize.

FALSE!

Substances can either be _________ or ________

Elements or compounds

Which is NOT an example of a chemical reaction? ( A) Yeast fermenting bread dough / (B) Wood burning / (C) Separating iron from sand with magnets / (D) all of these answers are correct.

C - separating iron from sand with magnets.

TRUE OR FALSE - Chemical reactions occur around us ONLY when something is burning.

False - they also happen in oxidation and fermentation. Not ONLY when something is burning

What things produce combustion? (A) Fish, plants and petrol / (B) Natural gas, wood and plastic / (C) Electricity, Iron and paper / (D) Natural gas, wood petrol

D. Natural gas, wood and petrol

Fermentation is caused by: (A) Fungi ONLY / (B) Fungi and bacteria / (C) Bacteria ONLY / (D) None of these answers is correct.

B. Fermentation is caused by FUNGI AND BACTERIA.

In a chemical reaction, energy is either ________ or _________ (A) absorbed or released / (B) digested or breathed / (C) eaten or drunk / (D) None of the above answers is correct

A. Energy is either absorbed or released.

What happens when a chemical reaction occurs? (A) The substance stays the same. / (B) The properties of a substance are changed. / ( C) The substance disappears / (D) Both B and C are correct

B. The properties of a substance are changed.

TRUE OR FALSE: When wood burns, it produces oxygen..

False: it produces carbon dioxide

What material DOESN'T make food oxidize? (From class experiment) (A) Sugar / (B) orange juice / (C) flour / (D) oil

C. Flour

What's the difference between an element and a compound?

Element = Only one component, Compound = MORE THAN one component

Combustion produces energy... (A) When water turns to ice / (B) When oxygen in the air reacts with wood, petrol and gas / (C) When ethanol and water mix / (D) when a gas turns into a solid.

B. When oxygen in the air reacts with wood, petrol and gas

Combustion = ____________ + ____________ (A) water + sugar / (B) Oxygen + fuel (wood, petrol, gas) / (C) Air + sunlight / D. Oxygen + air

B. Oxygen + fuel (wood, petrol, natural gas)

Combustion produces energy in the form of _______ and _______ (A) Water and carbon dioxide / (B) oxygen and gas / (C) heat and light / (D) wood and natural gas

(C) heat and light

Chemical reactions occur around us _________. (A) Once every 5 billion years / (B) once every trimester / (C) all the time / (D) once a week.

C. All the time

True or false? A milkshake is an example of a homogeneous mixture

True!

In fermentation, bacteria that produce lactic acid ________ food and makes it last __________. (A) Destroys... less time/ (B) preserves... Longer / (C) preserves... Less time / (D) destroys... Longer

B. Preserves food and makes it last longer

True or false? During oxidation, metals react with carbon dioxide in the air to form rust.

FALSE: Metals react with oxygen to form rust!

Chemical reactions, Combustion, Oxidation, Ferme ...