Answer:
Molecular formulas describe the exact number and type of atoms in a single molecule of a compound. The constituent elements are represented by their chemical symbols, and the number of atoms of each element present in each molecule is shown as a subscript following that element's symbol.
Answer:
0.00642mole
Explanation:
Molar Mass of Cu = 63.5g/mol
Mass of Cu from the question = 0.4076g
Number of mole =?
Number of mole = Mass /Molar Mass
Number of mole of Cu = 0.4076/63.5 = 0.00642mole
Answer:
A - 8
B - 8
C - O
D - 26
E - 30
F - Fe
Explanation:
Use these things:
1. A = Z + N,
where A - mass number,
Z - atomic number,
N - number of neutrons
2. atomic number = number of protons
Answer:
34g of potassium chlorate.
Explanation:
A saturated solution is a solution that, under a temperature, has the maximum amount of solute possible. The maximum amount that a solvent can dissolve of a solute is called <em>solubility.</em>
<em> </em>
The solubility of potassium chlorate in water at 70°C is 34g/ 100g of water.
That means, to saturate 100g of water at 70°C you need yo add:
<h3>34g of potassium chlorate.</h3>
The white dwarf has the lowest density of the stars listed. Hope this helps and have a nice day!
