In the modern periodic table, the elements are arranged according to their atomic number - not their relative atomic mass.
In the periodic table the elements are arranged into:
rows, called periods, in order of increasing atomic number
vertical columns, called groups, where the elements have similar properties
Answer:
Mass = 253.4 g
Explanation:
Given data:
Mass of oxygen required = ?
Mass of hydrogen available = 32.0 g
Solution:
Chemical equation:
2H₂ + O₂ → 2H₂O
Number of moles of hydrogen:
Number of moles = mass/molar mass
Number of moles = 32.0 g/ 2.02 g/mol
Number of moles = 15.84 mol
Now we will compare the moles of hydrogen and oxygen:
H₂ : O₂
2 : 1
15.84 : 1/2×15.8 = 7.92 mol
Mass of oxygen required:
Mass = number of moles × molar mass
Mass = 7.92 mol × 32.00 g/mol
Mass = 253.4 g
Answer:
a market/society is dictated by supply and demand and scarify affects the supply of a product because if something is more scarce/rare then usually there is a higher demand and a higher price. This impacts society because it affects the price of things and how much people are willing to give for it
Explanation:
Answer:
<h2>The answer is 28.2 g</h2>
Explanation:
The mass of a substance when given the density and volume can be found by using the formula
<h3>mass = Density × volume</h3>
From the question
volume of table = 12 cm³
density = 2.35 g/cm³
The mass of the table is
mass = 2.35 × 12
We have the final answer as
<h3>28.2 g</h3>
Hope this helps you
Answer:
A
Explanation:
A ball buried under the ground is the answer because it has no kinetic energy because of it's inability to move