(i) State the observations made when the blue copper (II) sulphate y
(ii) Identify liquid Y and write an equation for its formation. w at
b) Pellets of sodium hydrogen and anhydrous Copper (II) sulphate were py
dishes and left in the open for two hours. Explain the observation in each
Tormation. Water, CuSO4
11) sulphate were put in separate Petri-
observation in each Petri-dish.
mic splyer

answer: a chemical reaction

explanation:

im not wrong

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them  

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

hope this mark me brainliest

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l