GRADE 10 SCIENCE EXAMM

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

how to find the number of neutrons

Back (Answer)

Mass Number- Number of protons

Front (Question)

what is Homogeneous Mixture

Back (Answer)

You can’t see the different layers - Salt in water (it’s mixed so well, you can’t see the salt).

Front (Question)

what is heterogeneous Mixture

Back (Answer)

You can see the separate parts Example: Salad (you can see the veggies and dressing separately).

Front (Question)

how to know if its a chemical change

Back (Answer)

-new colour that isn’t supposed to happen -bubbles of gas -heat or light

Front (Question)

how to know if it’s a Physical change

Back (Answer)

textural change, shape, size, volume and density

Front (Question)

reactive perodic table

Back (Answer)

Metals: Most reactive → Group 1 (Alkali metals), increasing reactivity as you go down the group. Non-metals: Most reactive → Group 17 (Halogens), increasing as you go up the group. Noble gases: Least reactive.

Front (Question)

what happens when the indicator Blue Litmus paper enters an acid, neutral or base solution

Back (Answer)

acid- turns red neutral- nothing happens base- nothing happens

Front (Question)

what happens when the indicator Red Litmus paper enters an acid, neutral or base solution

Back (Answer)

acid- nothing happens neutral-nothing happens base- turns blue

Front (Question)

what happens when the indicator phenolphthalein enters an acid, neutral or base solution

Back (Answer)

acid- nothing happens neutral-nothing happens base-turns pink

#10

Front (Question)

what happens when the indicator bromothymol blue enters an acid, neutral or base solution

Back (Answer)

acid-turns yellow neutral- turns green base-turns blue

#11

Front (Question)

what happens when the universal indicator enters an acid, neutral or base solution

Back (Answer)

acid- turns red neutral- turns green base-turns purple

#12

Front (Question)

what happens when the indicator PH paper enters an acid, neutral or base solution

Back (Answer)

acid- turns pink base-turns yellow neutral- turns brown

#13

Front (Question)

How to name binary acids

Back (Answer)

-Add the prefix “hydro” -write the root of the non-metal name -add “ic” - add the ending acid -if you see (g) write like it’s ionic metal+non-metal+ide

#14

Front (Question)

how to name oxyacids

Back (Answer)

using polyatomic ions -write the name of the polyatomic (anion) if it ends with “ate” replace with “ic” -if it ends with “ite” replace with “ous” -add acid at the end

#15

Front (Question)

How to name bases

Back (Answer)

-Once you see “OH” you know its a base -name the metal -add the word hydroxide

#16

Front (Question)

how do bonds form when something is ionic

Back (Answer)

electrons are transferred

#17

Front (Question)

how do bonds form when something is covalent

Back (Answer)

electrons are shared

#18

Front (Question)

what is the state of something ionic

Back (Answer)

-consists of ions -hard but brittle -solid at room temp -odourless -crystal lattice

#19

Front (Question)

what is the state of something covalent

Back (Answer)

-consists of molecules -solid, liquid, gas at room temp -sometimes has odour.

#20

Front (Question)

melting/boiling point of something ionic

Back (Answer)

-high melting point + boiling point -requires more energy to break -crystal lattice structure

#21

Front (Question)

melting/boiling point of something covalent

Back (Answer)

-low melting + boiling point

#22

Front (Question)

solubility of something ionic

Back (Answer)

-most are soluble

#23

Front (Question)

solubility of something covalent

Back (Answer)

-some are soluble

#24

Front (Question)

conductivity of something ionic

Back (Answer)

-conduct electricity when dissolved in water (electrolytes)