A neutron is neutral and a proton is positive and a electron is negative
Answer:
6.022 × 10²³ molecules of B₂H₆
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
1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen
B₂H₆ molecules:
21.63 g = one mole of B₂H₆= 6.022 × 10²³ molecules of B₂H₆
Answer:
The answer to your question is 43.9%
Explanation:
Data
ZnSO₄ 7H₂O
percent of H₂O
Process
- Calculate the molar mass of the molecule
molar mass of ZnSO₄ 7H₂O = 65 + 32 + (14 x 1) + (11 x 16)
= 287g
molar mass of H₂O = (2 x 1) + 16 = 18 g x 7 = 126 g
- Calculate the mass percent of water
287 g ------------------------- 100%
126 g ------------------------- x
x = (126 x 100)/287
x = 43.9 %
Answer: the faster moving molecules in the warm reactants hit each other with more energy and so are more likely to react.
Explanation: