Answer:
Using the VSEPR theory, the electron bond pairs and lone pairs on the center atom will help us predict the shape of a molecule. The shape of a molecule is determined by the location of the nuclei and its electrons. The electrons and the nuclei settle into positions that minimize repulsion and maximize attraction.
Explanation:
this from the internet
sorry if im wrong
The lone pairs and bond pairs in a molecule are used to determine the location of electron pair geometry around the molecule.
What is electron pair geometry?The geometry of a molecule refers to the shape of the molecule. The geometry of a molecule is determined by the valence shell electron pair repulsion theory.
Now, we know that both lone pairs and bond pairs in the molecule are used to determine the electron domain geometry around the central atom as they take the most appropriate orientations in space to minimize electron pair repulsions.
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Which of the cells is flat and protects you?
Answer:
Skin cells are flat and protect you!
Explanation:
Answer:
Epithelial cells are the safety shields of the body. Take another look at your hand. It is covered with epithelial cells that protect your body by being a barrier between your internal cells and the dirt and microbes in the environment.
What is helium an example of?
element
compound
atomic number
subatomic particle
Answer:I believe it is Subatomic Particle.
if the products of a reaction have higher energy than the reactants, then the reaction...
Answer:
Explanation:If the products of a reaction have higher energy than the reactants, then the reaction...
What is the maximum number of electrons in an atom that can have the following quantum numbers? Specify the orbitals in which the electrons would be found. (a) n = 2, ms = +1 2; (b) n = 4, mℓ = +1; (c) n = 3, ℓ = 2; (d) n = 2, ℓ = 0, ms = −1 2; (e) n = 4, ℓ = 3, mℓ = −2.
Answer:
1.04
Explanation:
Where does the energy of a hurricane come from? (1 point)
O the Sun
O strong winds
O Earth's spin
O Earth's moon
Answer:
strong winds come from the energy of a hurricane
The energy of a hurricane come from strong wind. The Taino Native American term hurricane, which translates to "bad spirit of the wind," is where the word hurricane originates.
What is hurricane ?A tropical storm that has sustained winds of 74 mph or greater is referred regarded as a hurricane. A storm's eye typically measures 20 to 30 miles in width and can reach distances of 400 miles. Storms can be dangerous because of their torrential downpours, strong gusts, and storm surges.
When warm, humid air begins to rise over water, hurricanes emerge. Cooler air replaces the rising air. Large clouds and thunderstorms continue to grow as a result of this process. Thanks to the earth's Coriolis Effect, these thunderstorms are still expanding and starting to rotate.
Thus, option B is correct.
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What is the total number of neutrons in an atom of O-18? a) 18 b) 16 c) 10 d) 8
Answer:
There are 10 neutrons
Explanation:
Because the atomic number is 8 and the isotope number is 18 (which is the collective protons and neutrons), we can do
18-8=10
Answer:
10
Explanation:
8 proton because it is oxygen
10 neutron because 18-8
PLEASE HELP ASAP!!!! (60 POINTS)
Answer:
copy and paste here ill do it
What is the name of the theory that proposes continents move over time due to the motion of the lithospheric plates?
Continental Slide
Convection Currents
Plate Drifting
Continental Drift
Answer:
plate drifting
Explanation:
Plate tectonics
Plate tectonics is the theory that Earth's land masses are in constant motion. The realization that Earth's land masses move was first proposed by Alfred Wegener, which he called continental drift.
Answer:
Plate drifting
Explanation:
Plate drifting is similar to plate tectonics.Earth's surface consists of different plates.These plates keep moving slowly all time .So slowly the continents have been formed by this tectonics (Still going on)what are the statement of ethanol
Answer:
Density 0.78945 g/cm3 (at 20 °C)
Melting point −114.14 ± 0.03 °C (−173.45 ± 0.05 °F; 159.01 ± 0.03 K)
Boiling point 78.23 ± 0.09 °C (172.81 ± 0.16 °F; 351.38 ± 0.09 K)
Solubility in water Miscible
Explanation:
mark brainliest
I need help with this
Answer:
129 units cubed
Explanation:
There are ten spaces between 120 and 130, so we can infer that each line represents a change in volume of 1 unit. The volume of the substance in the graduated cylinder looks like it's 1 under 130, so its volume is 129 units.
Hopefully this was helpful! :)
assuming that no heat is lost to the surroundings, what is the final temperature of the mixture?
how many elements belong to the alkali metal family
Answer:
six
Explanation:
check your periodic table
please help me I need this done
Select the correct answer.
Which bond theory can easily predict magnetic and ionization properties?
A valence bond theory
В. molecular orbital theory
C. modern valence bond theory
D both molecular orbital and valence bond theories
Answer:
b molecular orbital therory
Which one of the following is a measure of the certainty of a
result comparing to a given value or the agreement of
measurements?
a. Accuracy
b. precision
c. Percentage
d. Uncertainty
Answer: a. Accuracy how close is your measurement tot the true value
Explanation:
Which one of the following is a measure of the certainty of a
result comparing to a given value or the agreement of
measurements?
a. Accuracy how close is your measurement tot the true value
b. precision; how close are yourr measurements to each other
c. Percentage: the ratio of tour measurement to the true value X 100
d. Uncertainty: how unsure are you of your measurements
Determine the mass of 10g of CaCO3
Answer:
= 100u. Hence 10 g = 0.1 mole. Hope it's helpful to u
Which item is a good example of potential energy?
A thrown baseball
O Electricity
O A rock
A battery
65,000(0.08 x 200x 0.004) / (800x300)
Perform the following operations giving the proper number as a benefit get figures in the answer.
Help
Answer:
Use calculator but first group them one by one and open the bracket by solving them accordingly
The number we get by this operation is 0.016. This number can be taken based on the rules for significant figures.
What is significant figures?The number of significant figures is the number of digits that are known with certainty plus the last one having some uncertainty. All non zero values are significant and zero preceding first non zero digit is not significant .
For example in 65000, there are only two significant figures. Similarly in 0.08 only one significant digit is present. Now when we multiply two decimal numbers, the result can only have as many decimal places as there are in the value with fewest decimal places.
First, multiply the numbers inside the bracket. As per the above rule, the result should contain only two decimal places.
(0.08 ×200×0.004) = 0.06
Multiply by 65000 - 0.06×65000 = 3900
Now divide it by the multiplication product (800× 300), 240000 we get as follows:
3900÷240000 = 0.016
Hence the result of this operation is 0.016.
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The temperature of a gas is increased. Which statement best explains the effect that this has on the motion of gas
particles?
Answer:
The average kinetic energy increases, and the particles collide more frequently.
Explanation:
guys- my science teacher doesn't teach, he just says go on schoology
whats valency of nitrogen in N2O3, N2O5 and NO
Answer:
Valency of nitrogen in the given compounds:
N₂O₃ = +3
N₂O₅ = +5
NO = +2
-TheUnknownScientist 72
Drug addiction occurs in
age groups, from a
variety of backgrounds.
A young, narrow
B. all, narrow
C. all, wide
Answer:
A. young, narrow
Explanation:
Correct me if I am wrong
#LetsStudy
In making a pizza, which process involves a chemical
change?
o mixing spices for the sauce
o slicing pepperoni for the topping
o spreading cheese on the pizza
o baking the dough to form the crust
Answer:
baking the dough to form the crust
In making a pizza, the process that involves a chemical change is baking the dough to form the crust.
What is chemical change?Chemical changes occur when a substance combines with another to form an entirely new substance.
During a chemical change there is a formation of an entirely new product different from the original product.
Thus, In making a pizza, the process that involves a chemical change is baking the dough to form the crust.
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could you help answer these two question
Answer:
number 29 is D
Explanation: When the moon orbits the earth some of the light reflects off the moon, making it visible on the Earth.
I dont know how to answer 28 fully, is there a picture?
Heat is transferred from a fire to potatoes that are sitting on top of the coals.
Which type of heat transfer is occurring?
Answer: Is it Conduction?
Explanation:
Ethanoic acid is a weak acid because
Is a carboxylic acid
Does not irritate the skin
Is not completely ionized in water
Produces one hydrogen ion per molecule
Answer:
is not completely ionized in water
The ethanoic acid (acetic acid) is considered as a weak acid because it does not releases all of its hydrogen in water, rather it dissociates partially and establishes an equilibrium with its conjugate base.
According to Newton's 3rd Law of Motion, if a force is exerted on an object, how does the other force occur?
A.Another force occurs that is in the same direction and at the same speed.
B. Another force occurs that is in the same direction and is the same size.
C. Another force occurs that is equal in size and opposite in direction
D. Another force occurs that is equal in speed and opposite in direction.
Answer:
Explanation:
According to Newton's third law of motion, forces always act in equal but opposite pairs. Another way of saying this is for every action, there is an equal but opposite reaction. ... When one object exerts a force on another object, the second object exerts the same size force on the first object
the answer is B
Answer:
C. Another force occurs that is equal in size and opposite in direction
Explanation:
According to Newton's 3rd Law of Motion, if a force is exerted on an object, how does the other force occur?
A.Another force occurs that is in the same direction and at the same speed.
B. Another force occurs that is in the same direction and is the same size.
C. Another force occurs that is equal in size and opposite in direction
D. Another force occurs that is equal in speed and opposite in direction.
NEWTON SAID "FOR EVERY ACTION, THERE IS AN EQUAL AND OPPOSITE REACTION"
What fraction of the original atoms of the radioactive sample will remain after the given number of half-lives has passed?
Answer:
1/8
Explanation:
[tex] \frac{1}{ {2}^{3} } = \frac{1}{8} [/tex]
Mark brainliest please
Using the picture below find the density of the irregular object.
Answer:
51.842/2.1 g/mL
Explanation:
the volume of the irregular object= 19.8 - 17.1 =2.7 mL
the density if the irregular object= mass ÷ volume = 51.842 ÷ 2.1 = 51.842/2.1 g/mL
Why are being flammable and combustible considered to be chemical properties and not physical properties?
A. They alter its mass and volume
B. They change the state of matter
C. They change the substance into another substance
D. They change the color of the substance
Answer:
C. They change the substance into another substance.
Explanation:
Hope it helps!!
What makes inertia important in that activity?
