Tectonic Plates
Tectonic Plates
Which of the following is an accurate description of the movement of the tectonic plates in the diagram?
O A. Plate A is sliding past plate B.
O B. Plate A and plate B are diverging.
OC. Plate A and plate B are of equal density and are colliding.
OD. Plate A is denser than plate B, which results in subduction.
Answers
Related Questions
What element has 7 valence electrons and 4 electron shells
Answers
Answer:
Mn
Explanation: 4th shell so 4th row and count 7 from the left most column
Use the following equation to answer the question below. How many moles of iron are made from 8.25 moles of Fe2O3?(see pic for equation)
Answers
Explanation: Using stoichiometry you can see that 1 Mol Fe2O3 becomes 2 Mol of Fe so, 8.25 is multiplied by 2.
How many Joules of heat are required to melt 250 grams of ice at 0°C?
AHfus = 334 J/g
AHvap = 2258 J/g
Cp= 4.184 J/g C
Answers
Heat required : Q = 83500 J = 83.5 kJ
Further explanationGiven
mass ice = 250 g at 0°C
Required
The heat required
Solution
The heat to change the phase can be formulated :
Q = m.Lf (melting/freezing)
Lf=latent heat of fusion
Input the value :
Q = 250 g x 334 J/g
Q = 83500 J
Explain why chlorine (Cl2) is a gas at room temperature,
but sodium chloride (NaCl) is a solid at room
temperature.
Include description of the bonding and structure of chloride and sodium chloride in your answer
Answers
Answer:
The melting/boiling point of a substance determines what state of matter it takes at a certain temperature.
In Cl2 there are covalent bonds between the atoms forming simple molecules. There are weak attractions between molecules of Cl2 meaning little energy is needed to break these forces of attraction and therefore Cl2 has a low boiling point.
NaCl on the other hand has strong electrostatic forces of attraction between the positvely charged Na ion and the negatively charged Cl ion. NaCl forms a giant ionic lattice that requires high amounts of energy to break and therefore has a high melting point.
I'm not sure how to do this
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1. How much taller is the average person today than the average person 100 years ago?
A. 1 inch
B. 2 inches
C. 5 inches
D. 10 inches
Answers
PLEASE HELP I don’t know how to do this
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Moles of Iron : 1.01
Further explanationGiven
Reaction
Fe2O3 + 3CO → 2Fe + 3CO2
34 liters of CO
Required
moles of Iron
Solution
Assumed at STP
Conditions at T 0 ° C and P 1 atm are stated by STP (Standard Temperature and Pressure). At STP, Vm is 22.4 liters / mol.
so for 34 L :
= 34 : 22.4
= 1.518 moles
From the equation, mol Fe :
= 2/3 x moles CO
= 2/3 x 1.518
= 1.01 moles
What is the oxidation number for Ba?
A. +1
B. -2
C. +2
D. -1
Answers
Answer:
+2
Explanation:
Ba is present in group 2 and group 2 show + oxidation state
Although I am in the middle of the 5 stages, I am just as important
as the first and the last. As soon as you see a leaf sprout, you are
sure to be in my stage. Who am I?
This is annoying
Answers
Answer: The final stage of the life cycle of a tree is when it has fully grown and reached the ... You should be confident in your supplier's approach to sustainability. ... This is the first occasion you will see a stem and perhaps a couple of leaves. ... The next phase is the sapling stage, this is when the sprout continues to grow and has ...
Explanation:
Find the amount of atoms from 128 grams of NaCl?
Answers
Answer:
13.25 ×10²³ atoms
Explanation:
Given data:
Mass of NaCl = 128 g
Number of atoms = ?
Solution:
First of all we will calculate the number of moles of NaCl.
Number of moles = mass/molar mass
Number of moles = 128 g/ 58.4 g/mol
Number of moles = 2.2 mol
Number of atoms:
1 mole of any substance contain 6.022×10²³ atoms.
2.2 mol × 6.022×10²³ atoms / 1mol
13.25 ×10²³ atoms
Which describes an example of ecological succession?
Answers
Answer:
b. a meadow replacing a pond in it's flood plain
Explanation:
I'ts a secondary succession.
Name the type of chemical reaction.
NaBr + H3PO4 → Na3PO4 + HBr
Answers
Answer:
double displacement (metathesis) hope that helps!(^_^メ)
Explanation:
meh.
explain isotope with hydrgen diagram
Answers
Answer:
Hydrogen has three naturally occurringisotopes: 1H (protium), 2H (deuterium), and 3H (tritium). Other highly unstable nuclei (4H to 7H) have been synthesized in the laboratory, but do not occur in nature. The most stable radioisotope ofhydrogen is tritium, with a half-life of 12.32 years.
_____ is responsible for bringing gravity into modern science.
Isaac Newton
Galileo Galilei
Albert Einstein
Answers
Match the orbital to its diagram.
Answers
Answer:
s --- the round single circle
p --- the two lobes
d --- the four lobes
f --- complex shape
Potassium nitrate is a component of black powder and a fertilizer. Its chemical formula is KNO3. Potassium nitrate is obtained by neutralizing which acid and alkali?
Answers
Answer:
Synthesis of Potassium Nitrate (KNO3)
When potassium hydroxide neutralizes nitric acid potassium nitrate is formed.
Answer:
Below.
Explanation:
Nitric acid and potassium hydroxide:
HNO3 + KOH ---> KNO3 + H2O.
SOMEONE PLS HELP ASAP!!
Which pair of objects will have the least gravitational attraction to each other?
Group of answer choices
Two marbles 12 centimeters apart.
A cinderblock and marble 6 centimeters apart.
A cinderblock and marble 12 centimeters apart.
Two cinder blocks 6 centimeters apart.
Answers
Answer:
Two cinder blocks 6 centimeters apart
Explanation:
im not 100% certain but the 2 cinder blocks are more dense than the other options
sry if its wrong
7. Although carbon's three isotopes are carbon-12, carbon-13, and carbon-14, its
average atomic mass is 12.01 because
A. carbon-12 is the heaviest isotope.
B. carbon-12 is most useful to humans.
C. carbon-12 is the most common isotope.
Answers
Answer:
B
Explanation:
carbon 12 is most useful to humans
If these teams are pulling with the same amount of force what will happen?
The team with the green and orange shirts will win.
bo
The team with the yellow and red shirts will win.
They will not move and neither team will win.
Answers
pls don't answer if you done know. Which of the following best describes what would happen if mitosis did not take place?
A.Cells would get smaller and smaller over time.
B.Body tissues would not be able to repair themselves
C.The production of gametes (reproductive cells) would not occur
D.Organisms would all be multicellular.
pls help i really need this answer
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Answer: B
Explanation:
Do the reactants or products contain more energy in the
decomposition reaction of sodium azide?
Answers
Answer:
reactants contain more energy in the decomposition reaction of sodium azide?
Explanation:
Give examples of kinetic energy and how they work.
Answers
Answer: The kinetic energy of an object depends on both its mass and velocity, with its velocity playing a much greater role. Examples of Kinetic Energy: ... A baseball thrown by a pitcher, although having a small mass, can have a large amount of kinetic energy due to its fast velocity.
Explanation:
Hope this help
Please help. Thank you:)
Answers
A. Water
B. Housing
C. Plants
D. Animals
E. Warmth
why sometimes the electrons of an atom transfer to higher energy level
Answers
Answer:
According to Bohr, the amount of energy needed to move an electron from one zone to another is a fixed, finite amount. ... The electron with its extra packet of energy becomes excited, and promptly moves out of its lower energy level and takes up a position in a higher energy level. This situation is unstable, however.
Heelllpp.!!
How many moles are in 78 grams of Chlorine
gas (CI)?
Answers
Answer:
Grams of chlorine gas to moles
The SI base unit for amount of substance is the mole. 1 grams Chlorine is equal to 0.028206357713029 mole.
Explanation:
Find the volume of a locker that is 30cm long, 40cm wide, and 200 cm high.
Answers
Answer:
V= L × W × H so the answer is 240,000
please answer this for me shehsh
Answers
Answer:
ih2706
Explanation:
PLEASE ASAP
Determine the mass, in grams, for 1.20e24 molecules of H₂
Answers
Answer:
3.98g
Explanation:
Given parameters:
Number of molecules = 1.2 x 10²⁴ molecules
Unknown:
Mass of H₂ = ?
Solution:
To find the mass of this molecule, we use the expression below:
Mass = number of moles x molar mass
Molar mass of H₂ = 2(1) = 2g/mol
6.02 x 10²³ molecules are contained in 1 mole of a substance
So; 1.2 x 10²⁴ molecules will have [tex]\frac{1.2 x 10^{24} }{6.02 x 10^{23} }[/tex] = 1.99 moles of H₂
Mass of H₂ = 1.99 x 2 = 3.98g
_____of gas molecules with an object is the cause of
pressure by a gas.
Answers
Answer:
Gas Pressure
Explanation:
Gas pressure is caused by the force exerted by gas molecules colliding with the surfaces of objects (Figure 5.2. 1). Although the force of each collision is very small, any surface of appreciable area experiences a large number of collisions in a short time, which can result in a high pressure.
Answer:
Collisions
Explanation:
It says that it was the answer.
Does anyone know this?
Answers
Answer:
Not balanced. There are different number of atoms on each side of equation.
Explanation:
Given balanced chemical equation:
Chemical equation:
3C₂H₄ + 3O₂ → 4CO₂ + 6H₂O
The equation is not balanced because umber of moles of C, H and O are not balanced. It consist of six moles of C, 12 moles of H and six moles of oxygen on left side of equation while on right side there are 4 moles of C fourteen moles of oxygen and twelve moles of hydrogen present.
Balanced chemical equation:
C₂H₄ + 3O₂ → 2CO₂ + 2H₂O
Now the equation became balanced. There are two moles of carbon, four moles of hydrogen and six moles of oxygen are present on both side of equation.
