What is the force needed to accelerate a 25 kg object at 3 m/s²? Formula ( F = m x a)
Answer:
75n
Explanation:
Answer:
I think it is A sorry if wrong
Explanation:
Identify each molecule below as either a polar molecule or a nonpolar molecule. Explain your reasoing.
Oxygen Carbon dioxide
Answer:
Why then is carbon dioxide a nonpolar molecule while water is a polar molecule? Carbon dioxide is a nonpolar molecule because its atoms equally share the electrons. Water is polar because its atoms share the electrons unequally.
Explanation:
Oxygen and Carbon dioxide molecules are non polar.
What is Non-polarity?Non-polarity is defined as molecules in which the bonds are equal. This is
as a result of the electrons being shared equally.
In the case of Oxygen molecules, the electrons are equally distributed
between the two oxygen atoms which is a feature of a non polar
substance.
Carbon dioxide have dipoles which cancel each other out thereby
resulting in an equal distribution of electrons.
Read more about Non-polarity here https://brainly.com/question/545359
What are the differences between ionic and covalent compounds?
Answer And Explanation:
An ionic bond essentially donates an electron to the other atom participating in the bond, while electrons in a covalent bond are shared equally between the atoms.
Which energy sublevel occurs out of place because of its lower energy? A. 1p B. 4s C. 2s D. 3d
Answer:
When arranged in order of increasing energy, the 2s energy sublevel is out of place.
Note: 1p energy sublevel does not exist in the first shell, as there is only the 1s orbital, and this shell can have a maximum of only 2 electrons.
Explanation:
The arrangement of electrons in orbits or shells around the nucleus of an atom is known as the electronic configuration of the atom. Some principles and rules guide electron-filling in atoms; one of which is the Aufbau principle.
According to Aufbau principle, electrons are fed into shells of lower energy levels before filling up of higher energy shells.
The energy levels of of electron orbitals arranged in the order of increasing energy level is given below:
1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, ..., 7p
Therefore, during electron filling, the 2s orbital is filled first before the 4s orbital because it is at a lower energy level.
Answer:
The answer is B. 4s
Explanation:
Educere
I need help, and fast, please.
Why do (or can) your muscles hurt after a good workout
A. The ATP causes the cells to burn extra glucose causing cell deterioration
B. There has been a build up of alcohol
C. There is an accumulation of carbon dioxide
D. There is an accumulation of lactic acid
Answer:
option C.there is an accumulation of carbon dioxide.
Explanation:
Juan and Jose are having an argument about their science book. Juan says that since the book is sitting still, there are no forces acting upon it. Jose says there are forces acting upon the book. Who is correct? Explain why.
Answer:
Jose is right
Explanation:
As the book is sitting still on the table, it is being acted upon by two forces of equal magnitude and opposite direction. Theses are;
i) The weight of the book
ii) The normal reaction on the book
The weight of the book acts downwards while the normal reaction acts upwards. These two forces exactly counterbalance each other hence the book sits still on the table.
Can someone help me with this question please? I don’t understand molarity
Answer:
4.7L
Explanation:
For the following questions protons are blue and neutrons are red
Your dog is dragging you with a force of 100N at an acceleration of 4m/s2 what is your mass?
Answer:
25kg
Explanation:
F=ma
A heat lamp heats a pot of water from below, heat is
transferred throughout the water in the pot, and a person puts
their hand into the water to warm it. Which of the following
types of heat transfer are occurring in this scenario?
a Conduction
b Radiation
C Convection
d All of the above
Answer:
i think it is D. All of the above
but i will check to see if it's right
Answer:
D all of the above
Explanation:
I got it right on my test
help pls!!
H2O(g) → H2O(l)
The chemical equation above describes a(n) __________.
A) irreversible state change
B) physical change
C) endothermic change
D) chemical change
Answer:
C, physical change
Explanation:
take a look at the equation. Next to each form of water do you see the little (g) and (l)? These represent the state of matter the water is in. So, the water is going from a gas to a liquid. The chemical compound is the same so its a physical change, not chemical, and it is reversible. You could change the liquid water back to the gas through evaporation. Endothermic has literally nothing to do with this equation so you can easily eliminate that answer choice.
Why does Avogrados principle hold true for ideal gases that have small particles and for ideal gases that have large particles?
What is the mass of 3.5 moles of helium gas?
Answer:
1 mole is equal to 1 moles Helium, or 4.002602 grams.
Explanation:
Answer:
14.009.107
Explanation:
Moles to Grams helium
1 mole is equal to 1 moles Helium, or 4.002602 grams
4.002602 x 3= 12.007.806
4.002602 : 2 = 2.001.301
12.007.806+2.001.301= 14.009.107
5.Are pure solids included in equilibrium expressions? Explain your answer.
Answer:
Pure solids or liquids are excluded from the equilibrium expression because their effective concentrations stay constant throughout the reaction. The concentration of a pure liquid or solid equals its density divided by its molar mass.
Explanation:
Hope this helps!!!
An atom of element Be has four protons, four electrons, and five neutrons.
Which element below could be an isotope of this atom?
Answer:
b i took the edge test
Explanation:
I got told if i got a lighter lit it and put it on my self that i should eat a cookie an watch :D should i do it :3
HELLLLLLLP ASAP ITS DUE TODAAAAY :(
Answer:
the answer is j
Explanation:
Answer:
J. All of the above
Explanation:
Since the sun is tilted on it's axis, then the rays of the sun fall on the equator, directly, and that causes it to heat the equator more than the other regions.
Sometimes the sun's rays are on two tropics, Cancer and Capricorn, and that causes the Earth to heat unevenly, which causes wind and ocean currents to form.
TRUE or FALSE? Alkali and Halogen group has the same valence.
Answer:
False
Explanation:
Alkali metals are found in group 1 of the periodic table. They only have one valence electron. The easiest way for them to complete an octet is to lose an electron. Halogens, on the other hand, have seven valence electrons and gain an electron to complete octet.
Question 7 of 10
What is the correct electron configuration of phosphorus (P)?
A. 1922s22p%3s 3p
B. 1922s²2p3s 3p4
c. 1s22s22p6206
O D. 1s 2s22p%3s 3p3
SUBMIT
Answer:
1s2 2s2 2p6 3s2 3p3
Explanation:
The correct electron configuration of Phosphorus (P) :
1s², 2s², 2p⁶, 3s², 3p³ or [Ne] 3s²3p³
Further explanationGiven
Phosphorus (P) element
Required
The correct electron configuration
Solution
The electron configuration of an element is primarily based on the number of electrons
Phosphorus (symbol P) has the atomic number 15
The atomic number itself shows the number of electrons and the number of protons of an atom.
atomic number = number of electrons = number of protons in neutral atoms
So that the number of electrons from Phosphorus = 15
Its electron configuration :
1s², 2s², 2p⁶, 3s², 3p³ or [Ne] 3s²3p³
When a sample of gas is heated, its thermal energy a. increases b. decreases c. remains the same
Answer:
A) increases
Explanation:
Which of the following is an example of convection?
A. a hot oven warming the air around it
B. the rays of sun warming the earth
C. hot air rising and cooler air failing
Answer:
C. hot air rising and cooler air failing.Explanation:
Please mark my answer as a brainliest. That is the correct answer. ❤❤❤❤Which two changes would make this reaction reactant-favored?
2H2 + O2 + 2H20 + energy
A. Increasing the pressure
B. Reducing the temperature
O C. Increasing the temperature
O D. Reducing the pressure
Two changes would make this reaction reactant-favored
C. Increasing the temperature
D. Reducing the pressure
Further explanationGiven
Reaction
2H₂ + O₂ ⇒ 2H₂0 + energy
Required
Two changes would make this reaction reactant-favored
Solution
The formation of H₂O is an exothermic reaction (releases heat)
If the system temperature is raised, then the equilibrium reaction will reduce the temperature by shifting the reaction in the direction that requires heat (endotherms). Conversely, if the temperature is lowered, then the equilibrium shifts to a reaction that releases heat (exothermic)
While on the change in pressure, then the addition of pressure, the reaction will shift towards a smaller reaction coefficient
in the above reaction: the number of coefficients on the left is 3 (2 + 1) while the right is 2
As the temperature rises, the equilibrium will shift towards the endothermic reaction, so the reaction shifts to the left towards H₂ + O₂( reactant-favored)
And reducing the pressure, then the reaction shifts to the left H₂ + O₂( reactant-favored)⇒the number of coefficients is greater
Answer: C. Increasing the temperature
D. Reducing the pressure
Explanation:
Which of the following contains the most atoms?
Select one:
a. 2.9.0122 g Be
b. 39.098gk
c. 24.305 g Mg
d. 21.62gb
Answer:
b
Explanation:
Use the periodic table
Name of Metallic compound VSe
Answer: vanadium selenide
Explanation:
Answer:
Vanadium(V)selenide
Explanation:
NEED THIS NEED TO GET OFF ITS MY BRO BDAY NEED IT FOR A BIG GRADE NEed it SO BAD
Answer:
he is right, top right
Explanation:
True or False: A charged object has a surplus or deficiency of electrons
Answer:
true I believe
Explanation: so sorry if this is wrong
How many Sodium (Na) atoms are in 6NaCl?
6 Sodium (Na) atoms are in 6NaCl.
Sodium chloride, NaCl, is composed of two elements: sodium (or Na) and chlorine (or Cl). A molecule of sodium chloride, NaCl, is made up of one sodium atom and one chlorine atom. As a result, each NaCl molecule has two atoms.
[tex]1\ molecule\ of\ NaCl=2\ atoms\\\\6\ molecule\ of\ NaCl=12\ atoms\\\\[/tex]
So, 6 NaCl contains 12 atoms that is 6 Cl, and 6 sodium.
Hence, the answer is 6.
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Why do rats like cheese? <>-<> Im freaking out here dudes
Answer:
because its yellow
Explanation:
because rats like yellow
Jack claims that two 1.0 M solutions will always have a higher reaction rate
than two 0.5 M solutions of the same reactants. Which statement tells
whether Jack is right and gives a correct explanation?
A. He is not right, because there will be more successful collisions
between reactants in the 0.5 M solutions.
B. He is right, because there will be more successful collisions
between reactants in the 1.0 M solutions.
C. He is right, because the 0.5 M solutions give the molecules more
space to move more quickly.
D. He is not right, because the 0.5 M solutions give the molecules
more room to move around and align themselves well for
collisions.
Answer:
Hi i got , B. He is right, because there will be more successful collisions between reactants in the 1.0 M solutions.
Explanation: Hope it helps !!
The statement that gives correct explanation is:
B. He is right, because there will be more successful collisions between reactants in the 1.0 M solutions.
Relationship between collisions and concentration:With an expansion in the centralization of any responding substance, the opportunities for crashes between atoms are expanded on the grounds that there are more particles per unit of volume.
As the concentration increases, the collisions between the molecules increases. The solution having 1.0 M concentration will have more collisions due to the increase in the concentration as compared to the solution having 0.5 M.
Thus, option B is correct.
Find more information about Collisions here:
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