Some laces get warm and some get cold
Answer:
What happened?
What was the date, time and duration of the incident or behavior?
How many times did this happen?
Where did it happen?
How did it happen?
Did anyone else see it happen? Who? What did they say? What did they do?
Was there physical contact? Describe it. Demonstrate it.
What did you do in response to the incident or behavior?
What did you say in response to the incident or behavior?
How did the subject of the allegation react to your response?
Did you report this to anyone in management? To whom? When? What they say and/or do?
Did you tell anyone about the incident or behavior? Who? What did they say and/or do?
Do you know whether the subject of the allegation has been involved in any other incidents?
Do you know why the incident or behavior occurred?
Do you know anyone else who can shed light on this incident?
Is there anything else you want to tell me that I haven’t asked you?
Explanation:
Answer:
A, option is the correct answer of this question
To begin with, the equation given is not correct.
Correct equation is : CaCO3 + HCl ---> CaCl2 + H2O + CO2
It's CaCl2 not CaCl because Ca has a valency of 2
LHS RHS
CaCO3 + HCl ---> CaCl2 + H2O + CO2
First of all, to balance the equation you must look at the number of atoms on each side of the equation.
we have 2 H on the RHS and 1 H on the LHS. So, we put a 2 on the LHS
CaCO3 + 2HCl ---> CaCl2 + H2O + CO2
Check for the LHS: 1 Ca, 1 C, 3 O, 2 H & 2 Cl on the LHS
Now check for the RHS: 1 Ca, 2 Cl, 2 H, 1 C & 3 O
Hope it helped!
Explanation:
Moles of compound =
We have ;
Volume of solution = 600 mL = 0.600 L ( 1 mL = 0.001 L)
Moles of NaOH = n
Molarity of the solution = 3 M
n = 3 M × 0.600 L = 1.800 mol
Mass of 1.800 mole sof NaOH :
1.800 mol × 40 g/mol = 72.0 g
Preparation:
Weight 72.0 grams of sodium hydroxide and add it to the 500 mL of volumetric flask along with some water. Dissolve the all the solute by adding small proportion of water. After the solution becomes clear make the water upto the mark of 500 ml.
Transfer the solution to a bigger beaker and 100 mL of water more to it.