Answer:
Carbonates (CO3-2), phosphates (PO4-3) and sulfides (S-2) are insoluble.
The exceptions are the alkali metals and the ammonium ion.
Answer:
They expressed it as rate of change in concentration of reactants or products in a chemical reaction
To Find :
Number of moles of C₃H₆O present in a sample weighing 25.6 grams.
Solution :
Molecular mass of C₃H₆O is :
M = (6×12) + (6×1) + (16×1) grams
M = 94 grams/mol
We know, number of moles of 25.6 grams of C₃H₆O is :
Hence, this is the required solution.
Answer:
A chemical reaction is a process in which the chemical bonds of a substance are broken or rearranged. One or more substances are formed with different properties because of this chemical reaction. Examples of chemical reactions are rust, combustion, and oxidation.
The land of mass that is surrounded by water has more stable climate and smaller temperature flactuation is because of the property of water called specific heat, water has a specific heat of 4180 J/kg C this means that it needs a lot of energy to raise the temperature of water and also vice versa. unlike in the area surrounded by mass like deserts where the sand has a specific heat of about 880 j/kg C which means it only needs small amount of energy to raise its temperature and also to cool down, that is why during at morning in the desert is too hot while at night it is too cold
