Answer:
A. Electrons all have approximately the same energy.
C. Electrons move freely among atoms (delocalized).
Next Question:
B. Electrons move among orbitals of different energies.
C. Electrons move freely among atoms (delocalized).
Explanation:
Electron sea model
Electrons move freely among atoms (delocalized).Electrons all have approximately the same energy.Metallic Band theory
Electrons move among orbitals of different energies.Electrons move freely among atoms (delocalized).Electron sea model is one of the simplest form of metal bonding model. Its bonding is as a result of the sharing of valence electrons. The electrons here are delocalized which serve as the gum that keeps the metal atoms together.
Conclusively, we can say Electron sea model
Electrons move freely among atoms (delocalized).Electrons all have approximately the same energy.Metallic Band theory
Electrons move among orbitals of different energies.Electrons move freely among atoms (delocalized).Learn more from:
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Based on the illustration below, explain how the different organ systems work together.
__________________________________________
____________
Answer:
this is not a proper informative question
What provides the energy to set the water cycle in motion?
Nothing, the water cycle does not need energy.
Clouds
Sun
Water.
pls help i give brainest
Convert 220 grams of CO2 into Moles.
Answer:
. 44.0 g/mol.
Explanation:
It would be helpful if you could explain the process or do a few to show me how to do it. You don't need to do it all just one would help.
Thank you
Identify the reaction type and the products. Al+F2 ->
Answer:
redox and AlF2
Explanation:
Four groups of students were each asked to create table listing two elements and two compounds. Only one group’s table was correct. Which group’s table is correct? [Can someone just please answer]
Jay painted the inner four walls of a box. Then he put an ice block into it such that it did not touch the walls, but he couldn't do the same when he put water in that box. Why?
Answer:
Liquid takes the shape of container, so it will always touch the walls of the box in which you put it.
Explanation:
We know that a solid has a definite shape and a definite volume hence it occupies only its own volume in the box, it does not touch the walls of the box.
However, a liquid does not have a definite shape and volume. It occupies the volume of the box. Therefore, the liquid water must definitely touch the walls of the box.
What Classification type star this?
Explanation:
The Sun is a as a G2V type star, a yellow dwarf and a main sequence star. Stars are classified by their spectra (the elements that they absorb) and their temperature.
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Which best describes what occurs when heating a compound containing a
metal in the flame of a Bunsen burner?
1)Forms new atoms in the compound. When these new atoms are formed in the
compound, thes release energy as colored light.
2)Can destroy atoms in the compound. When the atoms of the compound are
destroyed, this gives off energy in the form of heat and colored light.
3)Can cause electrons in some of the metal atoms to move further away from the
nucleus. When these excited electrons return to their original locations, energy is
given off in the form of colored light.
4)can cause new nonmetal atoms to be formed in the compound. These new nonmetal
atoms release energy in the form of colored light when they are created.
Answer:
Heating compound containing a metal can cause electrons in some of the metal atoms to move further away from the nucleus.
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Explanation:
If 3.50 moles of sodium chloride is added to your food, how many grams is added?
Answer:
204.8g
Explanation:
The number of moles of a substance is related to its mass and molecular mass as follows:
mole (n) = mass (m) ÷ molar mass (MM)
According to this question, 3.50 moles of sodium chloride (NaCl) is added to a food.
Molar mass of NaCl = 23 + 35.5
= 58.5g/mol
Using mole = mass/molar mass
Mass = molar mass × mole
Mass = 58.5g/mol × 3.5mol
Mass = 204.75
Mass = 204.8grams.
Therefore, 204.8grams of NaCl or common salt was added to the food.
8)
How many molecules are there in 230 grams of CoCl2?
Answer:
1.07x10^24
Explanation:
thats the answer
Therefore, the number of mole will be 1.065 × [tex]10^{24}[/tex].
What is mole?
A mole is the quantity of a substance containing 6.023 x [tex]10^{23}[/tex] particles of that substance. The mole is really the SI unit for a substance's quantity.
It is given that, mass of 230 gram of CoCl2.
Moles = mass / molar mass
Put the value of given data in mole formula.
Moles = 230 / 129.8
Moles = 1.77
It is known that, 1 mole = 6.02 × [tex]10^{23}[/tex] molecule.
Hence, 177 moles = 6.02 × [tex]10^{23}[/tex] × 1.77 = 10.65 × [tex]10^{23}[/tex] .
Therefore, the number of mole will be 1.065 × [tex]10^{24}[/tex].
To know more about mole.
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If an object has a Mass of 11g and a volume fo 13mil, what is its density?
A.143g/ml
B.0.85g/ml
C.2g/ml D.24g/ml
Answer:
[tex]\boxed {\boxed {\sf B. \ d \approx 0.85 \ g/mL}}[/tex]
Explanation:
Density is found by dividing the mass by the volume.
[tex]d=\frac{m}{v}[/tex]
The mass of the object is 11 grams and the volume is 13 milliliters.
[tex]m= 11 \ g \\v= 13 \ mL[/tex]
Substitute the values into the formula.
[tex]d= \frac{11 \ g}{13 \ mL}[/tex]
Divide.
[tex]d=0.846153846 \ g/mL[/tex]
Round to the nearest hundredth. The 6 in the thousandth place tells us to round the 4 to a 5.
[tex]d \approx 0.85 \ g/mL[/tex]
The density is about 0.85 grams per milliliter.
if you do 40 J of work on an object move it to meters, you apply ____ newtons of force to the object
Which of the activities below does NOT affect the water cycle
Hydroelectricity
Deforestation
Exercising
Greenhouse effect
Answer:
Exercising would not affect the water cycle.
If a 2,000-kilogram car accelerates at a rate of 3 meters per second squared,
what is the force the engine applied to the car?
HELP
Answer:
Explanation:
assuming there is no friction
fnet=ma
2,000 kg*3m/s=6,000 N
PLS HELPPP ASAP
According to the Periodic Table of Elements, the neutral atom of what element has 4
protons, 5 neutrons, and 4 electrons?
O A. beryllium
O B. boron
OC. fluorine
D. aluminum
Have you figured out the answer yet ?
Answer:
no
Explanation:
Answer:
Not yet!
Note:
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6 grams of sodium chloride (NaCl) is dissolved to create 0.5 L of solution. What is the
molarity of this solution?
Answer:
0.206M
Explanation:
Molarity, which refers to the molar concentration of a substance can be calculated using the formula as follows:
Molarity (M) = number of moles (n) ÷ volume (V)
According to the provided information, mass = 6grams, volume = 0.5L
Since molar mass of NaCl = 23 + 35.5
= 58.5g/lol
Mole = mass/molar mass
Mole = 6/58.5
Mole = 0.103mol
Hence;
Molarity = 0.103/0.5
Molarity = 0.206M
Explain how mass extinctions occur.
Answer:
Mass extinctions happen because of climate change, asteroid impacts, massive volcanic eruptions or a combination of these causes.
Explanation:
When white light passes through a prism, what can be discovered?
A)
White light is made invisible by passing through prisms.
B)
White light is made brighter by passing through prisms.
White light is made of a spectrum of various colors.
D)
White light gets hotter when it passes through prisms.
Answer:
White light is made of a spectrum of various colors.
Explanation:
As light passes through a prism, it is bent, or refracted, by the angles and plane faces of the prism and each wavelength of light is refracted by a slightly different amount. ... As a result, all of the colors in the white light of the sun separate into the individual bands of color characteristic of a rainbow.
what are atoms? please answer me fast i need help
Explanation:
an atom is the smallest unit of ordinary matter that forms a chemical element every solid liquid gas and plasma is compost neutral or ionized atoms. atoms are extremely small typically around 100 picometers across.
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Hey everyone! Trying to figure out the name for this question. If you could help me, that would be amazing!
If there are 0.090 moles of sugar (C₁₂H₂₂O₁₁) in the average can of soda, how many sugar molecules would this be
Given :
There are 0.090 moles of sugar (C₁₂H₂₂O₁₁) in the average can of soda.
To Find :
How many sugar molecules would this be ?
Solution :
We know, in 1 mole of any compound their are [tex]6.022\times 10^{23}[/tex] molecules of that compound.
So, number of molecules in 0.090 moles of compound is :
[tex]n = 0.090 \times 6.022 \times 10^{23}\\\\n = 5.42\times 10^{22}[/tex]
Therefore, number of molecules in 0.090 moles of compound is [tex]5.42 \times 10^{22}[/tex] .
In a 63.17 g sample of SOs, how many grams are sulfur?
Answer:
25.30 gram
Explanation:
No of moles = given mass / molar mass
No of moles = 63.17/80.06
0.7890 moles
Mass of sulphar = no of moles× molar mass of sulphar
Mass of sulphur = 0.7890×32.065
25.30 gram
how much thermal energy does a cup of coffee have
Answer:
a lot that's why it's really hot
Determine el número de moles presentes en una esfera de titaniode 0.5 cm de radio, sabiendo que la densidad del titanio es de 4507kg/m³. =433
Answer:
0.0493 moles de Titanio
Explanation:
Primero, debemos hallar el volumen de la esfera. Usando la densidad podemos hallar la masa de titanio y usando la masa atómica encontraremos las moles de titanio:
Volumen de la esfera:
Volumen esfera = 4/3π * Radio³
Volumen = 0.5236cm³
En m³ (1m³ = 1x10⁶cm³):
0.5236cm³ * (1m³ / 1x10⁶cm³) = 5.36x10⁻⁷m³
Masa en gramos:
5.36x10⁻⁷m³ * (4507kg / m³) = 2.36x10⁻³kg * (1000g / 1kg) = 2.36g de Titanio
Moles -Masa molar Ti: 47.867g/mol-:
2.36g de Titanio * (1mol / 47.867g) =
0.0493 moles de TitanioFor the reaction
? P4+? S8 - ? P4S10
what is the maximum amount of P4S10 which
could be formed from 15.29 g of P4 and 17.66 g
of Sg?
Answer in units of g.
Please hurry it’s due today and include the steps if you can
HELP ASAP!!!
Which of the following is a function of the cell membrane?
Producing energy
Creating new cells
Eliminating of waste
Replacing damaged cells
Which of the following is the most accurate description of chemical energy? A. The energy released by heat in a chemical reaction B. The energy in the motion of the substance C. The energy stored in the chemical bonds of a substance D. The energy that is absorbed in a chemical reaction
Answer:
The answer is A The energy released by heat in a chemical reaction
Explanation:
Is the process represented below an example of a physical or a chemical
change?
CO2(s) —» CO2(g)