(in scientific vocab)
my guess i dont know exactly but heat is energy
heat absorbed or radiated during a change of phase at a constant temperature and pressure. specific heat. the heat required to raise the temperature of one gram of a substance one degree centigrade. heat of condensation. heat liberated by a unit mass of gas at its boiling point as it condenses into a liquid.
(1) O2
(2) CO2
(3) NH3
(4) CH4
Answer: Option (3) is the correct answer.
Explanation:
A molecule is polar when the net dipole moment of molecule is zero. When an electronegative atom is attached to an electropositive atom then the electronegative atom pulls the shared pair of electrons more towards itself.
As a result, the movement of electrons is more towards the electronegative atom and the dipole moment becomes zero. This will also induce partial positive and partial negative charge on electropositive and electronegative atom.
On the other hand, are covalent compounds and does not have a net zero dipole moment.
Thus, we can conclude that out of the given options represents a polar molecule.
In order for you to calculate for the mass of ammonium carbonate, you need to know the molar mass of it and the nitrogen atoms in the compound. Ammonium carbonate has a molar mass of 96.08 grams per mole. There are two nitrogen atoms in ammonium carbonate which is equal to 28.02 grams per mole. Divide the molar mass of nitrogen to the ammonium carbonate, 28.02/96.08 x 100, we get 29.16wt% nitrogen.
Answer:
29.16%.
Explanation:
You can determine the mass percent, or how much of the total mass of ammonium carbonate is nitrogen, by first determining the mass of nitrogen and the mass of the total compound.
1. the mass of nitrogen in this compound is 2 x 14.007, or 28.014.
2. the mass of ammonium carbonate is 96.09 grams.
To find the percentage of nitrogen in the overall mass of ammonium carbonate, simply divide the mass of nitrogen by the mass of ammonium carbonate and multiply by 100:
28.014/96.09 x 100 ....................... 29.16%.
Also, I got the correct answer :)
–5.6 mc031-2.jpg 10–3 L
5.6 mc031-3.jpg 10–3 L
5.6 mc031-4.jpg 103 L
The correct way to represent 5600 L using scientific notation is written as 5.6 x 10³ L.
Scientific notation or standard form is method of representing large numbers in more condensed form using power of ten.
The correct way to represent 5600 L using scientific notation is written as follows;
5600 L = 5.6 x 10³ L
Thus, the correct way to represent 5600 L using scientific notation is written as 5.6 x 10³ L.
Learn more about scientific notation here:brainly.com/question/325572
To solve this we use the equation,
M1V1 = M2V2
where M1 is the concentration of the stock solution, V1 is the volume of the stock solution, M2 is the concentration of the new solution and V2 is its volume.
2.5 M x V1 = 0.50 M x .100 L
V1 = 0.02 L or 20 mL
Answer:
20 milliliters
Explanation:
I don't cap
The correct answer is: Option (D) 120g
Explanation:
We are given the following:
Mass of sugar = 20 g
Mass of water = 100 g
When sugar is completely dissolved into water, the mass of the solution will get:
mass-of-solution = mass-of-sugar + mass-of-water
mass-of-solution = 20 + 100
mass-of-solution = 120 g (Option D)