Answer:
i think its going to be liquid
Explanation:
Answer:The number of atoms in 2.0 mole Al is A. 2.0 Al atoms. B. 3.0 x 1023 Al atoms.
Secondly, is aluminum an atom or molecule? Aluminum is the second element in the thirteenth column of the periodic table. It is classified as a post-transition metal and a "poor metal". Aluminum atoms contain 13 electrons and 13 protons. There are 3 valence electrons in the outer shell.
3 C6H12O6,
C=3*6=18 Carbon atoms
H=3*12=36 Hydrogen atoms
O=6*3=18 Oxygen atoms
Take any compound, for example Al2O3.
For determining %composition of an element in the compound, divide total mass of the element with total mass of the compound and then multiply it by 100.
In the case of Al2O3, if we have to find the % composition of oxygen then,
R.M.M. of Al2O3 = 2×27 + 3×16
= 54 + 48
= 102
Percent composition of oxygen
= (G.M.M. of oxygen/R.M.M. of
Al2O3) × 100
= (48/102) × 100
=47.06%
Answer: 165.6grams
Explanation:
Mass of a block = ?
Volume of block = 18 cm^3
Density of block = 9.2 g/cm^3
The density of any object depends on its mass and volume.
i.e Density of block = Mass / volume
9.2 g/cm^3 = Mass / 18 cm^3
Mass = 9.2 g/cm^3 x 18 cm^3
= 165.6 g
Thus, the mass of the block is 165.6grams