3) orbitals can hold two electrons provided they are spinning in the same direction
We define an orbital in chemistry as a region in space where there is a high probability of finding an electron.
Each orbital holds a maximum of two electrons which spin in opposite direction according to Pauli exclusion principle.
According to this principle no two electrons can have the same set of quantum numbers. As a result, the spin quantum numbers of two electrons in the same orbital must differ hence they spin in opposite directions.
https://brainly.com/question/19536139
How is kinetic energy of particles and temperature related
Answer:
The higher the temperature, the faster the particles move, the lower the temperature, the slower.
HELP ME PLSSSS
Which *TWO* statements explain ways in which cells get nutrients
A. The nucleus provides the instructions for making proteins from amino acids.
B. Mitochondria change energy stored in organic compounds into a usable form
C. Transport proteins help molecules cross cell membranes.
D. A chloroplast converts energy from sunlight into organic matter
Answer:
i am not sure but
Explanation:
b and c should be correct
Answer:b and D
Explanation:
12. If the particles of a liquid are always moving, why don't they all come apart from each other and become a gas?
Answer:
even though the particles of a liquid are moving, they are attracted to each other so they don't spread far apart to become a gas.
Explanation:
"but some do when they evaporate"
In liquids, the particles are allowed to move freely rather than the solid. The gaseous particles can move more freely than liquids.
Particles in liquids:In liquids, the particles are placed randomly and thus are allowed to move freely but they do not become a gas as liquids are slightly less compressible than gases. Even though the particles of a liquid are moving, they are attracted to each other so they don't just spread far apart to become a gas.
Find more information about Liquids here:
brainly.com/question/752663
CAN SOMEONE PLEASE HELP ME WITH THIS
Answer:276ml
Explanation:
If an element has an atomic number of 12 how many protons does each atom have?
The chemical name for common salt is
Sodium chloride
commonly known as salt, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions. With molar masses of 22.99 and 35.45 g/mol respectively, 100 g of NaCl contains 39.34 g Na and 60.66 g Cl.
Answer:
Sodium chloride
Explanation:
that is the name and the formula is
NaCl
What is the ionic charge of elements in column 1?
Answer:
こんにちは
Explanation:
Match these solutions with their examples:
Liquid in liquid
Solid in liquid
gas in liquid
gas in gas
solid in solid
liquid in solid
Gas in solid
Examples
A. Air
B. seawater
C. marshmallow
Answer:
sea water
Explanation:
a sea water can match the following
Describe what happens to kinetic energy of the molecules when temperature increases.
Answer:
When the temperature of an object increases, the average kinetic energy of its particles increases. When the average kinetic energy of its particles increases, the object's thermal energy increases. Therefore, the thermal energy of an object increases as its temperature increases.
Explanation:
That is all I know.
Why do we use Scientific Notation?
Answer:
Scientific Notation was developed in order to easily represent numbers that are either very large or very small. As you can see, it could get tedious writing out those numbers repeatedly. So, a system was developed to help represent these numbers in a way that was easy to read and understand: Scientific Notation.
Explanation:
Answer:
Working with very large or small quantities usually ends up being quite complicated. Scientific notation is a way to write numbers in an abbreviated way, making it easier to work with these numbers.
Explanation:
Volume of water displaced
Answer:
The volume of displaced fluid is equivalent to the volume of an object fully immersed in a fluid.
please answer this its really fast
In the following balanced equation what is a correct mol ratio? *
1 mol CH4 / 2 mol CO2
1 mol O2 / 1 mol H2O
2 mol CO2 / 3 mol O2
4 mol H2O / 3 mol CH4
Answer:
ugly
Explanation:
help me out plz!!!!
The most stable group of elements on the periodic table is the?
A) halogens
B) noble gases
C) alkali earth metals
D) alkaline earth metals
Answer:
Noble Gases B
Explanation:
The noble gases are the chemical elements in group 18 of the periodic table. They are the most stable due to having the maximum number of valence electrons their outer shell can hold. Therefore, they rarely react with other elements since they are already stable.
The final temperature and pressure in a container is 234K at 210 kPa.
If initial temperature was 175 K, what was the starting pressure?
Answer:
Initial pressure = 157 kpa (Approx)
Explanation:
Given:
final temperature = 234 K
final pressure = 210 kpa
Initial temperature = 175 K
Find:
Initial pressure
Computation:
Initial pressure / Initial temperature = final pressure / final temperature
Initial pressure / 175 = 210 / 234
Initial pressure = 157 kpa (Approx)
what particle joins or bonds atoms to form a compound or molecule
Explain why there is a difference in the thickness of the crust between the side of the moon facing the Earth and the side that faces away from the Earth?
Answer:
the lack of maria; the thicker crust means it was harder for giant impacts to pierce the crust and get darker basaltic lava bubbling up.
Explanation:
Calculate the average atomic mass of antimony
Antimony-121 has a mass of 120.904 amu and a natural % abundance 57.21
Antimony-123 has a mass of 122.904 amu and a natural % abundance of 42.79
can you give the work aswell trying to understand how to do it
Answer:
Wow, now this one is a hard one, took me quite a while to figure it out but here it is
The abundances of the two isotopes is:
Antimony-121 = 57.2%
Antimony-123 = 42.8%
Explanation:
what are the 3 types of water?
Answer:
3 Types of Water: Mineral, Spring and Prepared Water
Aly's science class was looking at bacteria through a microscope. Aly's teacher said some bacteria can be as small as 0.00365 cm long. What is the length of the bacteria written in scientific notation?
Answer:
[tex]0.00365\ cm=3.65\times 10^{-3}\ cm[/tex]
Explanation:
Aly's teacher said some bacteria can be as small as 0.00365 cm long.
In this problem, we need to write the length of the bacteria written in scientific notation. Any number can be written in the form of scientific notation as follows :
[tex]N=a\times 10^b[/tex]
a is a real no and b is an integer
In the given number, there are two zeroes before 3. We need to shift the decimal after 3. It can be done as follows :
[tex]0.00365\ cm=3.65\times 10^{-3}\ cm[/tex]
Hence, this is the required solution.
The Bohr model of the atom suggest that the protons and neutrons are found in the nucleus and the electrons orbit the nucleus much line planets around the sun. How is our modern model of the atom different from this model?
Answer:
D) The electrons move around the nucleus in an electron cloud
Explanation:
i just did it on usa test prep !
Which of the following is the final stage of development before birth?
a
zygote
b
embryo
c
uterus
d
fetus
Answer:
D. Fetus
Explanation:
Uranium - 235
Atomic #
Atomic mass
# of protons
# of neutrons
# of electrons
Answer:
# of protons
Explanation:
Identity the solution among the following mixture-air
Answer:
Air is composed of about 78% nitrogen, 21% oxygen, and 1% of other gasses like carbon dioxide
Explanation:
Brainly deleted my answer so I came back to answer this again :(
You
2. An all natural mosquito repellent
is trying to make its way into the
market. One arm is sprayed with the
repellent and one arm is not sprayed
with anything. After 3 hours, the
number of mosquito bites is counted. What is the control group
Answer:
The arm that was not sprayed with anything
Explanation:
The control group would be the arm that was not sprayed with anything.
The control group during an experiment is a group that forms the baseline for comparison in other to determine the effects of a treatment. The control group does not include the variable that is being tested and as such, it provides the benchmark to measure the effects of the tested variable on the other group - the experimental group. In this case, the experimental group would be the arm that was sprayed with the repellent.
1. At what temperature dose water freeze
2. at what temperature dose ice melt
3. At what temperature dose water boil
Answer:
1. water will freeze at a temperature below 32 degrees fahrenheit 0 degree celsius.
2. Ice will melt at a temperature above 32 degrees fahrenheit 0 degrees celsius.
3. water boils at 212 degrees fahrenheit or 100 degrees celsius.
Help plz!!!!!!!!!! Urgent
Answer:
Explanation:
10^-2
As you were climbing a a mountain, you noticed that rocks were crumbling below your feet and moving down the mountain. What two processes did you observe?
Answer:
Weathering and erosion
Explanation:
Weathering can be explained as the breaking down of rocks/minerals on the surface of the Earth as a result of contact with biological organism, water, air and other factors
. There are 3 common types of weathering which are;
1) physical weathering
2) biological weathering
3) chemical weathering
Erosion can be regarded as a geological process, whereby earthen material are been transported away by natural forces, these forces could be wind as well as water.
Therefore, as you were climbing a a mountain, you noticed that rocks were crumbling below your feet and moving down the mountain. What is observed are weathering and erosion processes.
After the weakening and broken up of the rock by weathering then erosion transport the bit of the rock down the mountain as you are climbing, which means the "weathering process" breakdown and the "erosion process" involves the transport or movement of the bit of the rocks
A scientist built a computational model to investigate what happens when magma comes into contact with the ground surface. In the model, the ground surface was 293K, whereas the magma was 1,500K. The model examined different depths of the magma away from Earth's surface and toward the core. Over a greater amount of time, more magma cooled. What form of heat transfer accounts for the magma cooling?
Answer:
Conductive heat transfer is most likely responsible for the cooling of the magma
Explanation:
The Earth's core is continuously cooling due to human's digging, allowing for more space and heat escape from the Earth's core. All magma closer to the core would have its heat absorbed by the core, hereby increasing its coolness.
This heat transfer process is common to conduction.
I hope this was helpful.
Which characteristic is related to kinetic energy but not potential energy
Answer:
kinectic is movement and potential is still
Explanation:
While kinetic energy of an object is relative to the state of other objects in its environment, potential energy is completely independent of its environment. Hence the acceleration of an object is not evident in the movement of one object, where other objects in the same environment are also in motion.
Answer:an object’s speed
Explanation: