Simple acids
Which of the following are acids?
Milk of Magnesia
Lemon juice
Vinegar
Baking soda
Battery acid
Ammonia
Vinegar
battery acid
Lemon juice
Which of the following solutions could have a pH of 12?
Sodium sulphate
Sulfuric acid
Sodium hydroxide
Which of the subatomic particles is not included when calculating mass?
Electrons
State the process that occurs when a gas turns into liquid ?
Condensation
What is the common name for sodium chloride?
Table salt
The lower the pH, the __________ is the acid
stronger
Which of the following are alkalis?
Milk of Magnesia
Lemon juice
Vinegar
Baking soda
Ammonia
Battery acid
Ammonia
Baking Soda
Milk of magnesia
Use your periodic table to identify the number of neutrons found in Nitrogen.
7 neutrons
The proccess where a gas changes to a solid
Deposition
Bee stings are acidic and causes pain. In your opinion, what can be applied to the skin to lessen the pain.
a weak alkali
Name the process when acid reacts with alkali
Neutralization
The higher the pH value, the _______________ is the alkali
Stronger
12C , 13C and 14C are all isotopes of carbon.
State the difference between these three isotopes in terms of subatomic particles
They all have a different number of neutrons
when wet clothes are hang to dry
what is evaporation ?
Aqueous ammonia is alkaline. Choose from the list, the pH value that is alkaline. Draw a circle around your chosen answer. pH 1 pH 5 pH 7 pH 10
pH 10
determines the pH of solutions, changes color
indicator
What is the range of pH value of alkalis?
Below are three statements about mixtures.Which of them are correct?
1.Mixtures can contain elements and compunds2
2.The components of a mixture must be in the same state.
3.The components of a mixture keep their own properties.
1and 3
The correct combination relating to state change ,particles and energy is :
A ) Subliming -particles move apart -particles gain energy
B ) Vaporising-particles come closer together -particles gain energy
C ) Melting -particles moves further apart-particles lose energy
D ) Condensing -particles come closer together -particles gain energy
C )
A
Which gas is made when powdered zinc is added to dilute hydrochloric acid?
hydrogen
True or False. An acid can have the OH (Hydroxide) ion.
false
Give the formula of the ion that is present in all alkaline solutions.
OH
X is particle with 19 electrons and 20 neutrons.
Three species are shown below :
40Ca+ , 39K+, 38Ar
Which of these three species could particle X be ?
Ca+
The amount of space an object occupies
What is volume ?
Complete the word equation for the reaction of magnesium oxide with hydrochloric acid
magnesium chloride ,hydrogen gas