Yes, aluminum is flammable
Answer:
0.1988 M
Explanation:
Molarity of a solution can be defined as the number of moles of solute present in that solution per volume of the solution in liter. Mathematically, molarity can be expressed as:
number of moles/volume (liter)
Also, moles = mass of substance/molar mass
mass of sucrose = 6.4475 g
molar mass of sucrose = 324.3 g/mol
moles of sucrose = 6.4475/324.3 = 0.0199
volume of solution = 100.00 ml = 0.1 liter
Hence, molarity of the solution = 0.0199/0.1
= 0.1988 M
The molarity of the solution is 0.1988 M.
Water has a definite volume but not a definite shape making the correct answer A.
When the charged balloon is brought near the wall, it repels some of the negatively charged electrons in that part of the wall. Therefore, that part of the wall is left repelled.
<u>Explanation</u>:
- Balloons don't stick to walls. However, if you rub the balloon on an appropriate piece of material such as clothing or a wall, electrons are pulled from the other material to the balloon.
- The balloon now as more electrons than normal and therefore has an overall negative charge. Two balloons like this will repel each other.
- The other material now has an overall positive charge. Because opposite charges attract, the balloon will now appear to stick to the other material. If you didn't rub the balloon first, it's charge would be neutral and it wouldn't stick to the wall.
You didn't put the reactions