Answer:
The correct option is: D.act as a Lewis base in water.
Explanation:
Ammonia is a hydride of nitrogen with the chemical formula NH₃. It is a colorless gas with a characteristic pungent smell. According to the VSEPR theory, it has a trigonal pyramidal structure.
In water, ammonia acts as a Lewis base due to the presence of lone pair on the nitrogen atom. Lewis bases are electron pair or lone pair donors.
Answer:
PV=nRT
Explanation:
T=PV/nR
P=5.6atm n= 4 mol V=12 L R =.082Latm/K mol
T= (5.6 atm)(12 L)/(4 mol)(.082Latm/K mol)
T = 205 K = -68 C
Answer: Here are the steps to determine the atomic mass of an element with isotopic forms:
1. Identify the isotopes: Determine the different isotopic forms of the element. Isotopes are atoms of the same element that have different numbers of neutrons but the same number of protons.
2. Determine the relative abundance: Find the relative abundance of each isotope. This information is typically given as a percentage or decimal. The relative abundance represents the proportion or percentage of each isotope in a naturally occurring sample of the element.
3. Obtain the mass of each isotope: Identify the mass of each isotope. This is usually given in atomic mass units (u) or grams per mole (g/mol).
4. Multiply the mass of each isotope by its relative abundance: Multiply the mass of each isotope by its relative abundance (expressed as a decimal). This calculates the contribution of each isotope to the overall atomic mass.
5. Sum the contributions: Add up the contributions of each isotope to obtain the atomic mass. This sum represents the weighted average of the masses of all the isotopic forms, taking into account their relative abundance.
means ...
A. copper
B. silver
c. gold
D. tin
Answer:
A im pretty sure
Explanation:
b. Oxygen, fuel, primer.
c. Oxygen, fuel, oxygen enriched environment.
d. Oxygen, fuel, a liquid.
Hey there
The answer should be : Oxygen, fuel , heat
I hope that's help !
Explanation:
Mass of the cube -1 = 8.91 g
Mass of the cube-2 = 8.88 g
Volume of the cube-1 = Volume of cube-2 = V
Density of the cube-1 = D
Density of cube-2 = D'
Density directly depends upon mass of the substance and inversely depends upon volume of the substance.
Here volume of the both cubes are same but masses are different. So, in this case densities of both cubes can be compared on the basis of masses.
This difference in densities of same material can be due following possibles:
1. May be an impurity present in the one of the cubes for which they have given different values their mass.
2. Weighing may not be working well.
3. May be an air trapped inside in one of the cubes.