KOH + H2SO4 —> K(+) + HSO4(-) + H2O
Or a total reaction
2 KOH + H2SO4 —> 2 K(+) + SO4(2-) + 2 H2O
Answer:
Generally, the atomic radius decreases across a period from left to right and increases down a given group. ... This causes the atomic radius to decrease. Moving down a group in the periodic table, the number of electrons and filled electron shells increases, but the number of valence electrons remains the same.
Hey there!
Protons determine the name of the element you build.
Protons are the particle that determines many things about the element.
The number of protons is the atomic number of an element, which is found on the periodic table.
Hope this helps!
S (s) + O₂ (g) → SO₂ (aq) represents this chemical reaction
<h3>Further explanation</h3>
In stating a chemical equation it can be done in the form of a word or a chemical formula
A word equation will include the words of the reactants, products, form of the compound (liquid, gas, solid), the total concentration/quantity of the reactants and products which can be expressed in mass, moles, or volume
The questions statement above shows that sulfur powder (S) and oxygen gas (O₂) are reactants (located on the left of the reaction equation), and sulfur dioxide (SO₂) is the product of the reaction (stated in the problem there is the word "to form") which is located on the right
So the complete reaction
S (s) + O₂ (g) → SO₂ (aq)
Answer:
The value of x in ethanol is 5
Explanation:
Given molar mass, you can subtract the molar masses of different elements present to find the missing amount of hydrogen; in other words:
Carbon*2 + Hydrogen*x + Oxygen*1 + Hydrogen*1 = 46
Molar mass carbon = 12.01
Molar mass hydrogen = 1
Molar mass oxygen = 16
12.01*2 g/mol + 1*x g/mol + 16*1 g/mol + 1*1 g/mol = 46 g/mol
Subtracting all knowns from the current molar mass gives
46 - 41.02 = 4.98
This means that x amounts of hydrogen has a molar mass of 4.98, or roughly just 5. Since each hydrogen has a molar mass of one, that means that there are 5 hydrogens missing and the complete molecular formula is C2H5OH
