Answer:
3 Cu (N O3)2 + 2 Al (O H)3 ---- 2 Al (N O3)3 + 3 Cu (O H) 2
Answer: OPTION, D
Explanation:
It is an example for ionic salt and has Calcium ion and sulfate ion.
Hence it's name is Calcium sulfate.
Calcium sulfoxide does not exist.
Calcium sulfite has CaSO3.
Answer:
Explanation:
Hello,
In this case, given that a typical aspirin tablet contains 5.00 grains of pure aspirin, the first step here is to compute the mass of those grans per tablet given that 1.00 g = 15.4 grains:
In such a way, the number of aspirin tablets are computed considering the total mass of aspirin and the mass per tablet:
Best regards.
Answer:
billion is larger \ part if billion
Answer:
Option c and d
Explanation:
John Dalton. In 1808, John Dalton proposed a theory known as Dalton’s Atomic Theory. The theory was published in a paper titled “A New Chemical Philosophy”. This theory was new to that era
The 5 postulates of Daltons' atomic theory are:
1. All the matters are made of atoms.
2. Atoms of different elements combine to form compounds
3. Compounds contain atoms in small whole-number ratios
4. Atoms can neither be created nor destroyed
. (This was later proven wrong )
5. All atoms of an element are identical and have the same properties (This was later proven wrong as atoms of same element may be different in case of elements having isotopes )
Therefore, options c and d are the answer.
