Answer:
is the notion of an atom 'X', if the mass number is A and the atomic number is Z
Explanation:
The symbol of the element is "X"
The notion comprises of symbol of element "X" in the center.
On the upper left side of the symbol mass number "A" is kept and on the lower left side of the symbol, atomic number "Z" is kept.
Thus, notion will be
Answer:
Products
Explanation:
During a chemical reaction, there are the reactants (left side), and the products (right side).
When mixing these two systems, it should be noted that the temperature of these should go to equilibrium which would mean that heat absorbed should be equal to the heat rejected. We calculate as follows:
(mCΔT)1 = (mCΔT)2
(410)C(T - 25) = (100)C(95-T)
T = 38.73 °C
Answer is: Volume of hydrogen sulfide is 131,37 L.
m(H₂S) = 200,0 g.
n(H₂S) = m(H₂S) ÷ M(H₂S).
n(H₂S) = 200 g ÷ 34,1 g/mol.
n(H₂S) = 5,865 mol.
V(H₂S) = n(H₂S) · Vm.
V(H₂S) = 5,865 mol · 22,4 L/mol.
V(H₂S) = 131,37 L = 131,37 dm³.
n - amount of substance.
Vm - molar volume.
Answer:
Negative ion S²- 3. Names of ionic compounds Formula Positive ion Cu2s Cut |Fe₂O₃ CuCl2 FeS Ag,0 FeBr2 Name Copper(I) sulfide Iron (I) oxide Copper (I) chloride Iron (II) sulfide Silver Oxide Iron(i) bromide