Answer:
Just add a plenty of dots in the first one and very few dots in the second one
Limestone CaCO3 is a product of calcium oxide CaO and carbon dioxide CO2.
CaO + CO2 -----> CaCO3
Hope it helped!
Answer:
"Synchronize" means to place together in terms of time and manner.
Explanation:
- In the word 'synchronize' the prefix added is 'syn'.
- The prefix 'syn' has been derived from the Greek language.
- The prefixes 'syn' and 'sym' are equivalent in terms of their meanings.
- The meaning of the prefix is to put 'together'.
- The words formed by adding the prefix es 'syn' and 'sym' highlights the meaning of togetherness of the specific things.
- Here, the word 'synchronize' means to put together in terms of time and manner.
Answer:
Explanation:
A precipitate of calcium carbonate is formed when an aqueous solution of sodium carbonate reacts with aqueous calcium chloride . Balanced equation of this reaction ,
(↓)
This reaction takes place when both reactants present in aqueous conditions, while calcium chloride precipitate separated from aqueous solution by filtration of an aqueous solution. This filtration of precipitate formed in the reaction left behind the residues aqueous solution .
Answer:
4.55x10⁻⁴ atm
Explanation:
When the balance is used, it first must be tared, it means that the weight of the vessel will be discounted, so the mass of the gas produced must be above 0.5 mg to be read in the balance.
The molar mass of the CO2 is 44 g/mol, so, for a mass of 0.5 mg = 0.0005 g, the number of moles is:
n = 0.0005/44
n = 0.000011 mol
The ideal gas law is:
PV = nRT
Where P is the pressure, V is the volume, R is the constant of the gases (0.082 atm.L/mol.K), and T is the temperature (30°C = 303 K), so:
P*0.6 = 0.000011*0.082*303
P = 4.55x10⁻⁴ atm
