Answer:
'*:*'
Explanation:
I know this looks weird, but
'= electron
*:* equals the nucleus, so 2 protons and 2 neutrons
and then '=electron
Answer:
Sum of coefficients in balanced equation is 18
Explanation:
Unbalanced equation: 
Balance O: 
Balance C: 
Balanced equation:
Sum of coefficients in balanced equation = (1+8+1+8) = 18
So, option (4) is correct.
Answer:
Density = Mass / Volume ..... which means that .....
Volume * Density = Mass
So....for the liquid in the bottle we have that
750 ml * 1.006 g / ml = Mass [ the "ml" cancels ]
750 * 1.006 g =
754.5 g .... this is the mass ["weight "] of the liquid .....
And the acetic acid is 4% of this
So........the mass ["weight"] of the acetic acid is 4% of this...so
.04 * 754.5 =
30.18 g
Explanation:
Silver is an example of an element. True. Elements are pure substances that cannot be broken down into simpler substances. An atom is the smallest unit of an element that retains all properties of the element.
Explanation:
Solubility is a saturated when the maximum amount of solute is dissolved in the solvent at a given temperature.
Dissociation occurs when an ionic compound is dissolved in water due to interactions between the charges and the polarity of atoms in the water molecule.
Hope it help
