A valley or depression between continents
A. Ocean Ocean basin.
B. Divergent boundary
C. Transform boundary.
D. Convergent boundary
A valley or depression between continents is called Ocean basin. Therefore, the correct option is option A.
What is valley?A valley is indeed a long, low region that commonly runs between mountains or hills and has a river and stream that runs through one end to another. Most valleys are produced through long-term erosion of the ground surface by streams or rivers. Some valleys are produced by glacial ice erosion.
These glaciers may persist in valleys in mountainous areas or in polar regions. These glacially produced valleys could have been constructed or extended during ice periods at lower latitudes or elevations, but they are currently ice-free and populated by rivers or streams. A valley or depression between continents is called Ocean basin.
Therefore, the correct option is option A.
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What will be the volume occupied by 100 grams of oxygen gas
at STP?
Answer:70L
Explanation:
The volume occupied by 100g of oxygen gas at STP is 70L.
1 mole of a gas at STP occupies 22.4 L volume.
The same goes for oxygen gas, [tex]O_2[/tex]. 1 mole of [tex]O_2[/tex] occupies 22.4L volume.
Now the molar mass of [tex]O_2[/tex] is = 32g
So the number of moles of [tex]O_2[/tex] in 100g is
n = 100/32
n = 3.125 moles
Volume occupied by 3.125 moles or 100g of [tex]O_2[/tex] is
V = 3.125 × 22.4 L
V = 70 L volume is occupied by 100g of oxygen gas.
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What causes radiation?
Answer:
It can come from unstable atoms that undergo radioactive decay, or it can be produced by machines. Radiation travels from its source in the form of energy waves or energized particles. There are different forms of radiation and they have different properties and effects
Where is the main asteroid belt in the solar system?
Answer:
It's between Jupiter and Mars.What is the theoretical yield of SO3 produced by 4.91 g of S?
Answer:
12.2 g
Explanation:
Step 1: Write the balanced equation for the synthesis of SO₃ from S
S + 1.5 O₂ ⇒ SO₃
Step 2: Calculate the moles corresponding to 4.91 g of S
The molar mass of S is 32.07 g/mol.
4.91 g × 1 mol/32.07 g = 0.153 mol
Step 3: Calculate the theoretical yield, in moles, of SO₃ from 0.153 moles of S
The molar ratio of S to SO₃ is 1:1. The moles of SO₃ produced are 1/1 × 0.153 mol = 0.153 mol.
Step 4: Calculate the mass corresponding to 0.153 moles of SO₃
The molar mass of SO₃ is 80.06 g/mol.
0.153 mol × 80.06 g/mol = 12.2 g
A balloon with a volume of 0.5L at 293K is cooled to 20K. What is the balloon's new
volume?
Answer:
0.03 L
Explanation:
Step 1: Given data
Initial volume of the balloon (V₁): 0.5 LInitial temperature of the balloon (T₁): 293 KFinal volume of the balloon (V₂): ?Final temperature of the balloon (T₂): 20 KStep 2: Calculate the final volume of the balloon
The balloon is filled with air. If we assume it behaves as an ideal gas, we can calculate the final volume of the balloon using Charles' law.
V₁/T₁ = V₂/T₂
V₂ = V₁ × T₂/T₁
V₂ = 0.5 L × 20 K/293 K = 0.03 L
In an ionic bond, how does a sulfur atom achieve an octet of electrons?
By gaining 2 electrons
By gaining 6 electrons
By losing 2 electrons
By losing 6 electrons
a category of classification below a kingdom? A phylum B domain C species
Answer:
Phylum
Explanation:
After that it goes class, order, family, genus, and finally species. In that order, BTW before kingdom is domain.
Answer:
Phylum
Explanation:
Newton's Law of Gravity says that any the effect of gravity between two objects depends on what two factors?
Answer:
Explanation:
you sack
What is a membrane?
A: Another term for a cells nucleus
B: a sort of “skin that encloses something
C: A type of genetic material
D: A single-called organism
1) How many moles of water does 6.02 x 1023 molecules
represent?
Answer:
1.00 mol
Explanation:
Step 1: Given data
Molecules of water: 6.02 × 10²³ molecules
Step 2: Calculate the number of moles corresponding to 6.02 × 10²³ molecules of water
In order to convert molecules to moles, we need a conversion factor. In this case, we will use Avogadro's number: there are 6.02 × 10²³ molecules in 1 mole of molecules.
6.02 × 10²³ molecules × 1 mol/6.02 × 10²³ molecules = 1.00 mol (we keep 3 significant figures)
14) Propane, C3H8, is a hydrocarbon that is commonly used as fuel for cooking.
a) Write a balanced equation for the complete combustion of propane gas, which yields CO2(g) and
H2O(l).
b) If 10.0 g of propane undergo combustion, how many moles of oxygen will be consumed?
c) Assuming that air is 21.0 percent O2 by volume, calculate the volume of air needed to completely
combust 10.0 g of propane at 30oC and 1 atm
d) If the combustion of propane produces 2220 kJ/mole, how much energy is produced when 30.0 g
of propane undergoes complete combustion?
e) If the process described in d) above occurs in a calorimeter containing 8.25 kg of water, calculate
the change in temperature of the water that would be observed.
g 8. A hydrogen atom is initially a rest and in the ground state. A proton with kinetic energy 1000 eV scatters off the atom. In the process the hydrogen atom is ionized. The kinetic energy of the ionized electron is measured to be 15.2 eV and the kinetic energy of the proton produced from the ionization of hydrogen is 4.3 eV. What would be the final kinetic energy of the projectile proton after the collision
Answer:
Explanation:
Ionization energy of hydrogen atom is 13.6 eV . This energy will be provided by energetic proton , the kinetic energy of which is 1000 eV. The kinetic energy of ionized electron is 15.2 eV . Kinetic energy of proton produced from from the ionization of hydrogen or the nucleus of the hydrogen atom is 4.3 eV . All these energy must have come from kinetic energy of initial proton.
So kinetic energy of projectile proton after collision
= 1000 - ( 13.6 + 15.2 + 4.3 ) eV.
= 966.9 eV .
How many protons does isotope of carbon- 14 atom have
Answer:
Number of protons in Carbon - 14 atom [tex]6[/tex]
Explanation:
The atomic number of carbon 14 atom is [tex]14[/tex]
Number of neutrons in the nucleus of Carbon-14 atom [tex]= 8[/tex]
Atomic number is equal to the sum of neutrons and protons
Number of protons in Carbon - 14 atom [tex]= 14 -8 = 6[/tex]
which statement describes the energy and bonding changes as two atoms of fluorine become a molecule of fluorine?
Statement that gives description as regards energy and bonding changes between atoms such as fluorine become a molecule of fluorine, bond Energy is released as a bond is formed. Thus option 4 is correct.
What is bond energy ?The Bond Energy otherwise called as bond enthalpy is a quantity that offers insight into the strength of a chemical bond.
The ‘bond energy’ can also be represented as “the average value obtained from the bond dissociation enthalpies of all the chemical bonds in a given chemical compound.
The bond energy of a chemical bond is directly proportional to the stability of that bond which implies that the greater the bond energy o between two atoms, the greater the stability of that chemical bond.
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Your question was incomplete. The probable question.
Which statement describes the energy and bonding changes as two atoms of fluorine become a molecule of fluorine?
1.Energy is absorbed as a bond is broken.
2.Energy is absorbed as a bond is formed.
3.Energy is released as a bond is broken.
4.Energy is released as a bond is formed.
Why do not all rock types contain fossils?
Excessive heat and pressure can destroy fossils.
Fossils can only be created in certain places around the world.
Fossils cannot be created near volcanoes.
Fossils are too large to be found in igneous and metamorphic rocks.
Answer:
Igneous rocks form from molten rock, and rarely have fossils in them. Metamorphic rocks have been put under great pressure, heated, squashed or stretched, and fossils do not usually survive these extreme conditions. Generally it is only sedimentary rocks that contain fossils.
Explanation:
Hope it helps, some how.
what is the electron dot structure of AsClBr2? Pls pls pls help me
Answer:
Explanation:
Sorry, I don't really know about this. I hope it helps!
How does a liquid change as it moved from one container to another?
Answer:
gas
Explanation:
Which pair of elements will form an ionic bond?
Answer: A pair of elements will most likely form an ionic bond if one is a metal and one is a nonmetal. These types of ionic compounds are composed of monatomic cations and anions
Explanation:
Atom X contains nine protons and seven neutrons. Atom Z contains nine protons and eight neutrons. Which of the following statements correctly describes the two atoms? (AKS 1a/DOK 1)
A.
They have the same mass number
B.
They are radioactive
C.
They are isotopes
D.
They are atoms of different elements
7. Circle the number that is larger in each pair.
5.6 x 10-6 or
5.6 x 10-5
10 because it's a large number
bromine
+
calcium iodide ® calcium bromide + iodine
Answer:
Br2 + CaI2 = CaBr2 + I2
Explanation:
Disclaimer: Not sure what you're asking, however, I will provide you with the full balanced equation.
Br2 + CaI2 = CaBr2 + I2
Most caves form in: *
O Igneous rock
O Compacted soil
O Limestone
Sandstone
I’m stuck on number 2
What is the molarity when 1.25 mol is dissolved in 3.50 L of solution?
Answer:
0.36 mol/L
Explanation:
The formula for molarity M=m/L
m stands for moles
L stands for liters
Plug it into the equation...
M=1.25 mol/3.5 L
M=0.35714285714
According to the passage, how does conserving energy helps combat climate change?
A
It turns off the lights automatically.
B
It reduces the need for fossil fuels.
C
It recycles old materials into new ones.
D
It releases greenhouse gasses into the air.
Answer:
B it reduces the need for fossil fuels
Explanation:
I got the answer wrong and it showed B was the right one
How many atoms of which elements are represented by the following formula?
H3PO4
Argon makes up about 0.93% of our atmosphere. If the atmospheric pressure is 760 mm Hg, what is the pressure contributed by argon?
Answer:
[tex]P_{Ar}=7.068mmHg[/tex]
Explanation:
Hello!
In this case, according to the given percent of argon in our atmosphere, it is possible to compute the pressure contributed by it as shown below:
[tex]P_{Ar}=P_{atm}*0.93\%[/tex]
Thus, we plug in to obtain:
[tex]P_{Ar}=760mmHg*0.0093\\\\P_{Ar}=7.068mmHg[/tex]
Best regards!
The pressure of the argon gas will be equal to [tex]P_{Ar}=7.068 \rm\ mmHg[/tex]
What will be the pressure of the argon gas?Pressure is defined as the normal force acting on any surface in the case of gases it is the normal force acting on the surface of the earth.
now it is given in the question that the Argon contains 0.93% part in the atmosphere.
So here are the calculations
[tex]\rm P_{Ar}=P_{Atm}\times 0.93[/tex]%
[tex]\rm P_{Ar}=700\times 0.93[/tex]%
[tex]\rm P_{Ar}=7.068\ mmHg[/tex]
Thus the pressure of the argon gas will be equal to [tex]P_{Ar}=7.068 \rm\ mmHg[/tex]
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What is Magnesium phosphide cation and Anion
Answer:
Magnesium Phosphide has a formula of Mg3P2 . Magnesium is a metal cation with a charge of Mg+2. Phosphorus is a nonmetal anion with a charge of P−3. In order to bond ionically the charges must be equal and opposite
Explanation:
Please help me I need this really quick
Answer:
Produce CO2 = Both
Produces oxygen = Both
Use CO2 in photosynthesis = Both
Use O2 in cellular respiration = Both
Hope this helps! :)