Answer:
C2H3Br + O2 → CO2 + H2O + HBr
Explanation:
The term balancing of chemical reaction equation has a unique meaning in chemistry. What it actually means is to ensure that the number of atoms of each element on the left hand side of reaction equation becomes equal to the number of atoms of the same element on the right hand side of the reaction equation.
When we look at the equation; C2H3Br + O2 → CO2 + H2O + HBr, the number of atoms of each element on the left and right hand sides of the given equation are not the same hence the equation is unbalanced.
If we look at the equation; 2C2H3Br + 5O2 → 4CO2 + 2H2O + 2HBr, the number of atoms of each element on both sides of the reaction equation are now equal, thus the later equation is the balanced version of the former.
Answer:
false
Explanation:
there are more than 2 forces of nature that change the environment and landforms
A. Breaking Bread, because you can rip or cut it and it is still bread.
hope that helps :)
In the Bohr Model, the electron is treated as a particle in fixed orbits around the nucleus. In the Quantum Mechanical Model, the electron is treated mathematically as a wave. The electron has properties of both particles and waves.
Answer:
Answers are given below.
Explanation:
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) 0.680 moles of H₂S
0.680 mol × 6.022 × 10²³ molecules / 1mol
4.09× 10²³ molecules
2) 8.96 moles of KI
8.96 mol × 6.022 × 10²³ molecules / 1mol
53.96 × 10²³ molecules
3) 6.500 moles of KClO
6.500 mol × 6.022 × 10²³ molecules / 1mol
39.143 × 10²³ molecules
4) 0.950 moles of NaOH
0.950 mol × 6.022 × 10²³ molecules / 1mol
5.721 × 10²³ molecules
5) 4.73 moles of Na₂CO₃
4.73 mol × 6.022 × 10²³ molecules / 1mol
28.48 × 10²³ molecules
