Answer:
the highest is "A" and the lower is "C"
<span>Among the choices provided, the answer is letter C, CuSO4(aq) + Fe(s) → FeSO4(aq) + Cu(s) since Iron(Fe) is higher up on the action graph and is, along these lines, more responsive than Copper(Cu). Because of this, Iron can supplant Copper in that substance equation. </span>
Answer:
Yes. There must be a difference.
Explanation:
The part of water with low density (warm or hot) would rise, and the cold water would sink. This creates a convection.
Answer:
Balanced equation
CS2(l) + 3O2(g)------> CO2(g) + 2SO2(g)
Explanation:
For a chemical equation to be balanced, the number of atoms of each element on the left Hans side of the reaction equation must equal the number of atoms of that element on the right hand side of the reaction equation.
Atoms of oxygen are six on both sides of the reaction equation. Atoms of sulphur are two while there is only one atom of carbon on both sides of the reaction equation.
Answer:
1.385 × 10²³ atoms of calcium
Explanation:
Given data:
Number of moles of calcium = 0.23 mol
Number of atoms = ?
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
For example,
18 g of water = 1 mole = 6.022 × 10²³ molecules of water
1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen
For 0.23 mole of calcium:
one mole = 6.022 × 10²³ atoms of calcium
0.23 × 6.022 × 10²³ atoms of calcium
1.385 × 10²³ atoms of calcium
