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Science Quiz > Front > Flashcards

Front Flashcards

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Biology 101 flashcards
1
Q
  1. What type of acid is in vinegar?
A

Ethanonic is the acid that is in vinegar.

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2
Q

3.What acid is in fruits?

A

Citric acid is in fruits.

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3
Q
  1. Is acid rain harmful and if it is name 3 reasons?
A

It causes deforestation, it decays statues made of limestone and it can pollute water and even kill fish.

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4
Q
  1. On the PH scale what type of substance is it and what colour is it if it is the number 10?
A

It is a weak alkali and and it is the colour blue.

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5
Q

6.What causes global warming?

A

Carbon dioxide is ozone in the air.

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6
Q
  1. What do you do if you spill a strong acid that could possibly be very harmful?
A

You would dilute it to make it less harmful.

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7
Q
  1. What is the best indicator to use for an experiment?
A

Universal indicator

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8
Q
  1. What colour does litmus go if you put acid in it?
A

Red

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9
Q
  1. What colour does litmus go if you put alkali in it?
A

Blue

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10
Q
  1. What is the acid that is in your stomach?
A

Hydrochloric

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11
Q
  1. Name 5 different hazardous symbols?
A 
Toxic
Irritant
Harmful
Corrosive
Highly flammable
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12
Q
  1. If you put an equal amount of acid and alkali what does it make?
A

Salt and water.

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13
Q
  1. If i add an equal amount of acid and alkali together what takes place and what colour forms?What is the pH also?
A

14.Neutralization forms a green colour with a pH of 7.

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14
Q
  1. On the PH scale what would happen if an equal amount of acid and alkali. What is the called?
A

Neutralization

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15
Q
  1. When we add universal indicator to the alkali what colour did it turn?
A

Blue

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16
Q
  1. How many things are you aloud to change to make it a proper practical?
A

Two things you are aloud to change

17
Q
  1. What is an independent variable?
A

What you change

18
Q
  1. What is an dependent variable?
A

Changes as it depends on dependent variable

19
Q
  1. What is an control variable?
A

Variables that are kept the same

20
Q
  1. If we had a large substance on acid and a drop of strong acid and we drop it in. Would it affect it and why?
A

It would not affect it because only one drop would not make a difference to this big substance

21
Q
  1. On the PH scale what is the number when the colour is yellow?
A

Weak acid

22
Q
  1. What is so good about the universal indicator?
A

It is universal which means that it can be read and recognised anywhere in the world

23
Q
  1. Name 5 safety rules for practicals?
A 
Stools pushed in
Sleeves and tie tucked in
Wear safety goggles 
Tidy workspace 
Stand during practical
24
Q
  1. Are all acids dangerous? Explain why?
A

No not all acids are dangerous because some of them we eat.

Science Quiz (2 decks)

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