Answer:
1450 W
Explanation:
<u>5800n x 20m</u> =1450w
80s
Answer:
Molarity of Sr(OH)₂ = 0.47 M
Explanation:
Given data:
Volume of Sr(OH)₂ = 15.0 mL
Volume of HCl = 38.5 mL (0.0385 L)
Molarity of HCl = 0.350 M
Concentration/Molarity of Sr(OH)₂ = ?
Solution:
Chemical equation:
Sr(OH)₂ + 2HCl → SrCl₂ +2H₂O
Number of moles of HCl:
Molarity = number of moles/ volume in L
0.350 M = number of moles/0.0385 L
Number of moles = 0.350 mol/L× 0.0385 L
Number of moles = 0.0135 mol
Now we will compare the moles of HCl with Sr(OH)₂.
HCl : Sr(OH)₂
2 : 1
0.0135 : 1/2×0.0135 = 0.007 mol
Molarity/concentration of Sr(OH)₂:
Molarity = number of moles / volume in L
Molarity = 0.007 mol /0.015 L
Molarity = 0.47 M
Compressional force is found in destructive plate boundary (convergent plate boundary).
The related landforms are rift valley and block mountain.
A representative particle is the smallest unit of a substance that can be broken down without altering the composition. Matter is composed of three types of representative particles: atoms, molecules and formula units.
Atoms and Elements
Atoms are the smallest particle that can be split. Substances that contain only one kind of atom are called elements.
Molecules
The molecule is the representative particle of molecular compounds. It is also the representative particle of diatomic elements.
Formula Unit
The representative particle of an ionic compound is the formula unit. A formula unit uses a formula to calculate the basic whole number ratio of the ions in an ionic compound.
Diatomic Elements
Diatomic elements, or molecules, are made up of two atoms of the same element. These diatomic elements are not part of a compound.
Answer:
1. When salt is mixed with water, the salt dissolves because the covalent bonds of water are stronger than the ionic bonds in the salt molecules
2. Pure sodium explodes on contact with water
Explanation:
