Answer:
Wind
Explanation:
Wind turbines make energy by the movement of the natural force on earth called 'wind' and renewable resources are resources that can be made from natural and environment-safe objects or things (e.g. Water, Geothermal Heat, The Sun, and Wind)
A rectangular block weighs 121g. The dimensions of the block are 9.1cm by 5.4cm by 2.3cm. From this data, what us the density of the block in g/mL? Will tge block float or sink in water and how do you know? Show all your work on a piece of paper.
The density of the rectangular block is 1.07 g/mL.
From the question, we have the mass of the rectangular block as 121g
The dimensions of the block are given as follows;9.1cm by 5.4cm by 2.3cm
So we have the volume of the block as; 9.1cm × 5.4cm × 2.3cm = 113 cm^3
Let us recall that; 1 cm^3 = 1 mL, so 113 cm^3 = 113 mL
Having said that, we must also remember that;
Density = Mass/volume
Density = 121g/113 mL
Density = 1.07 g/mL
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The tides of the oceans and large lakes that occur on Earth are caused by_______
The gravitational pull from the moon and sun
The earth’s rotation
Answer:
The gravitational pull from the moon and sun
Explanation:
Answer: gravity
Explanation:
Gravity is one major force that creates tides. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth (Sumich, J.L., 1996).
Which factor causes Earth’s seasons?
Answer:
The sun's position near earth
Explanation:
Air is made up of different gases, such as oxygen, nitrogen, and carbon dioxide.
Which statement best describes these three components of air?
O Oxygen, nitrogen, and carbon dioxide are all classified as pure substances.
Oxygen, nitrogen, and carbon dioxide cannot react with another substance.
Oxygen, nitrogen, and carbon dioxide are chemically bonded to one another.
O Oxygen, nitrogen, and carbon dioxide can be classified as elements.
idio
Answer:
option A
Explanation:
hope it helps
1. Since the electron has a negative electric charge and the nucleus has a positive
electric charge, where would you expect to find electrons in atoms?
The substance chlorine monoxide, ClO(g), is important in atmospheric processes that lead to the depletion of the ozone layer. The ClO molecule has an experimental dipole moment of 1.24 D and the Cl−O bond length is 1.60 Å.
Part A: Determine the magnitude of the charges on the Cl and O atoms in units of the electronic charge, e.
Part B: Based on the electronegativities of the elements, which atom would you expect to have a partial negative charge in the ClO molecule?
Atom O or Atom Cl
Part C: Using formal charges as a guide, propose the dominant Lewis structure for the molecule. (Draw a diagram)
Part D: The anion ClO− exists. What is the formal charge on the Cl for the best Lewis structure for ClO−?
A) The magnitude of the charges on CI and O atoms are : +0.16e and -0.16e respectively
B) Atom O will have a partial negative charge on the CIO molecule
C) Attached below
D) The formal charge on Cl is +3
A) Determine magnitude of charges on CI and O
Magnitude of charge = dipole moment / bond length --- ( 1 )
where : dipole moment = 1.24 D * [tex](\frac{3.34*10^{-30} C m}{1 D} )[/tex]
Bond length = 1.60 A° * [tex]( \frac{10^{-10} m}{A^{0} } )[/tex]
∴ Magnitude of charge = 2.56 * 10⁻²⁰ C
Note : Charge of an electron = 1.602 * 10⁻¹⁹ C
Therefore the magnitude of charges on CI and O atoms is
2.56 * 10⁻²⁰ C * [tex]\frac{1e}{1.602*10^{-19} }[/tex] = 0.16 e
Therefore
charge on CI = +0.16e
charge on O = -0.16e
Hence we can conclude that A) The magnitude of the charges on CI and O atoms are : +0.16e and -0.16e respectively and Atom O will have a partial negative charge on the CIO molecule also The formal charge on Cl is +3
Learn more about CIO : https://brainly.com/question/212138
The scientific community dismissed John Needham’s attempt to prove spontaneous generation. What was the reason that they gave? *
A. By sealing off the flask he deprived the environment of air, a requirement of spontaneous generation
B. He used the wrong type of flask
C. He left the flasks open to the air for too long
D. He did not boil his broth long enough and the flasks were not cleaned prior to the experimenter.
Answer:
He did not boil his broth long enough and the flasks were not cleaned prior to the experimenter
Why do scientists use remotely operating vehicles (ROVs) in scientific study?provide an example of their use
Answer:
Remotely operated vehicles, or ROVs, allow us to explore the ocean without actually being in the ocean. ... Additional equipment, such as a manipulator or cutting arm, water samplers, and instruments that measure parameters like water clarity and temperature, may also be added to vehicles to allow for sample collection.
Explanation:
Fill in the [?]
73,542 m = [?] km
Give your answer in standard form.
How many grams of NaBr must he measure out to have 4.20 moles?
Answer: 432 grams
Explanation:NaBr must he measure out to have 4.20 moles.
A substance that flows is called a
Answer: a fluid???
Explanation: Sorry if it is wrong but i think that is right
what is a compound substance
Answer:
A compound is a substance that contains atoms of two or more different elements.
Explanation:
Please mark my answer no. 1
17 Polly has a pencil that is 21 cm long. How long is the pencil
Answer:
The pencil is 8.268 inches
if 0.400 moles CO and 0.400 moles O2 completely react how many grams of CO2 are produces?
2CO+O2 becomes 2CO2
If 0.400 moles CO and 0.400 moles O2 completely react, 17.604 grams of CO2 would be produced.
First, let us look at the balanced equation of reaction:
[tex]2CO + O_2 ---> 2CO_2[/tex]
According to the equation, the mole ratio of CO and O2 is 2:1. But in reality, the mole ratio supplied is 1:1. Thus, CO is the limiting reactant while O2 is in excess.
Also from the equation, the ratio of CO consumed to that of CO2 produced is 1:1. Thus, 0.400 moles of CO2 would also be produced from 0.400 moles of CO.
Recall that: mole = mass/molar mass
Therefore, the mass in grams of CO2 that would be produced from 0.400 moles can be calculated as:
Mass = mole x molar mass
= 0.400 x 44.01
= 17.604 grams
More on calculating mass from number of moles can be found here: https://brainly.com/question/12513822
PLEASE HELP!!!!!!!!!!!!!
Which option would be an appropriate model of nuclear fission?
A. dividing a stack of paper equally between two people
B. taking a teaspoon of sugar from a bowl
C. disturbing a drop of water such that it breaks into smaller droplets
D. cutting a cake in half
Answer:C
Explanation:
Help please!! I thought it was 374.8 but it keeps saying to check my significant digits
Answer:
ok
Explanation:
i am doing now so
HELP!! please choose all the correct answers, picture attached
Answer:
Only C. is wrong else every option is correct.
Explanation:
Hope this helps you. If you want explanation then ask in comments. Good luck!
Which of the following resources can be obtained from the hydrosphere?
Calculate the mass percent of H in C3H8O3.
%
Answer:
because of it being that you have inferno dragon plsss
Explain how conditions in the mantle crate a conventional current
Answer:
As the warmer material rises, it also cools, eventually pushed aside by warmer rising material and sinking back toward the core. Mantle material flows slowly, like thick asphalt or mountain glaciers. While the mantle material remains solid, the heat and pressure allow convection currents to move the mantle material
Can anyone help me with this?
Answer:
Label 2
Explanation:
Earth is about 2/3 of the way up the Orion Arm of the Milky Way Galaxy
What is the answer with the proper significant figures 7.6+2.401+0.68=
Answer:
10.7
Explanation:
The addition of 7.6 + 2.401 + 0.68 = is 10.681.
According to the addition of sig figs, you want your answer to have the same amount of places, after the decimal point, as the least sig-fig figure.
7.6
2.401
0.68
+
----------
10.681 - Draw a line straight down from the least sig-fig figure (7.6)
So the maximum figure after the decimal point is one. Since 8 is greater than 5, you have to round up from 10.6 to 10.7.
Suppose a solution has a pOH of 5.3. What is the concentration of hydronium ion, H3O+, in the solution?
The concentration of hydronium ion, H3O+, in the solution with pOH of 5.3 is 1.99 × 10-⁹M.
HOW TO CALCULATE HYDROGEN CONCENTRATION:
The pOH of a solution is given as 5.3. The pH of this solution can be calculated as follows:pOH + pH =145.3 + pH = 14pH = 14 - 5.3 = 8.7pH = 8.7.The hydrogen ion concentration can be calculated by using the following expression:[H+] = 10-pH[H+] = 10-⁸.⁷[H+] = 1.99 × 10-⁹MTherefore, the concentration of hydronium ion, H3O+, in the solution with pOH of 5.3 is 1.99 × 10-⁹M.
Learn more at: https://brainly.com/question/12047300?referrer=searchResults
19. When you cut an apple in half. What type of change has occurred?
A.
Ichemical
C.
temporary
B.
physica
D.
reactive
Answer:
Physical
Explanation:
Nothing has chemically happened and the change is permenant therefore it is physical
What term refers to a group of nerve cells that are connected to one another?
A. neuron
B. nerve network
C. brain
D. cerebrospinal fluid
What element does “X” represent in Figure 1?
Helium
Krypton
Neon
Argon
Answer:
Argon
Explanation:
It's atomic number is 18
hope that's it
The mass of 1 mole of phosphorus atoms is how many
grams.
Answer:
approximately 30 g.
The mass of 1 mole of phosphorus atoms is approximately 30 g.
Explanation:
Hope this helps.
How many more electrons does each oxygen atom need to be stable?
Darrell has 35 grams of melted chocolate. He pours all of the melted chocolate in molds. After he allows them to cool, Darrell has two solid bars of chocolate.
If the two solid chocolate bars contain all of the melted chocolate, what is their combined weight?
A.
It depends on how long it took the chocolate to cool.
B.
The chocolate bars weigh more than 35 grams.
C.
The chocolate bars weigh exactly 35 grams.
D.
The chocolate bars weigh less than 35 grams.
Answer:
A
Explanation:
it is correctly right????
Answer:
B.
The chocolate bars weigh more than 35 grams.
which chemical formal shows an ionic compound? A. CO2 B.N 2 O C.NaCI D.C6 H12 O6
Answer:
B
N2O
Explanation:
maybe
d can also be lol