The three reasons why plate tectonics can be described as the surface expression of mantle convection are;
1) It involves the outer shell which is the surface of the earth.
2) It involves movement of of rocks at the the surface which can be likened to mantle convection.
3) It involves transfer of heat as in mantle convection but at the surface.
Mantle convection is simply defined as transport of the solid bulk of the earths' interior known as mantle by the transfer of heat from the earth's white hot core which is its' deep interior to the surface known as lithosphere which causes the motion of Earth's mantle to solidly creep.Now, plate tectonics are defined as the theory that explains the past and present movements of the rocks situated at the surface of the earth which aids in understanding the geological history of the rocks. This means it is basically the outer shell of the earth that is being divided into large plates that move smoothly over the earths' mantle but above the earths' core.Read more at; https://brainly.com/question/19990159
An inherited characteristic of an organism is called a ___________________.
Answer:
fitness. the ability of an organism to survive and reproduce in its environment. adaptation. the inherited characteristic that increases an organism's chance of survival.
An inherited characteristic of an organism is called a heredity.
What do you mean by heredity ?The term heredity refers to the genetic heritage passed down by our biological parents. It is the transmission of traits from one generation to another generation. These traits can be physical, such as eye colour, blood type or a disease, or behavioral.
Heredity is also called biological inheritance, is the exiting of of traits from parents to their offspring either through asexual reproduction or sexual reproduction.
Heredity is a process in which organisms develop characteristics from their parents. These characteristics are called traits. Inheritance is the transmission of information from one generation of individuals to the next.
Thus, An inherited characteristic of an organism is called a heredity.
To learn more about the heredity, follow the link;
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Samantha and Claire determined the mass and volume of a piece of metal to be 24.16 g and 3.22 mL respectively. Determine the density of the metal.
Answer:
7.5031055900621
Explanation:
D= M/V
Why are anions negative?
Answer:
An anion has more electrons than protons, consequently giving it a net negative charge .
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what would be the theoretical yield of 2SO2 + O2 + 2H2O --> 2H2SO4
Answer:
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Explanation:
please help does anybody know how to calculate the molar mass of a compound?
What are gases that are molecules
Answer:
there are elemental molecules, made from one type of atom (pure), example: oxygen and there are compound molecules, made from more then one type of atom, for example carbon dioxide
What is formed when atoms of elements combine?
O Compounds
O Electrons
O Protons
O Neutrons
Answer:
compounds , because they're combined
Answer:
The answer is A.) Compounds
Explanation:
Compounds are when the atoms of elements combine. When combined it creates a compound.
How are crystals made?
Explanation:
Crystals often form in nature when liquids cool and start to harden. Certain molecules in the liquid gather together as they attempt to become stable. They do this in a uniform and repeating pattern that forms the crystal. In nature, crystals can form when liquid rock, called magma, cools.
Answer: Crystals often form in nature when liquids cool and start to harden. Certain molecules in the liquid gather together as they attempt to become stable. They do this in a uniform and repeating pattern that forms the crystal. In nature, crystals can form when liquid rock, called magma, cools.
Explanation: Can i have BrainLiest
2 Aluminum oxidizes according to the following equation: 4A1 + 302 → 2Al2O,
[a] Powdered Al (0.048 myl) is placed into a container containing 0.030 mol O.. What is the limiting reactant?
[b] How many moles of the excess reoctant remaine?
Answer:
Identify the limiting reactant (limiting reagent) in a given chemical reaction.
Calculate how much product will be produced from the limiting reactant.
Calculate how much reactant(s) remains when the reaction is complete.
When an oxygen-19 nucleus undergoes beta decay, the nucleus formed is
that of
oxygen-18.
O nitrogen-18.
fluorine-19.
O carbon-14.
What is not found on the inside of the eye? optic nerve, cornea, tear ducts, or iris?
science lab questions:
When the enzyme lactase breaks down lactose, the sugar ______________ is produced.
The _______________________ of an enzyme has a big impact on how fast or slow the enzyme reaction occurs.
Two environmental conditions that affect enzyme reaction rates are ____________________ and ____________.
The faster lactase works, the more ____________________ will be produced as lactose is broken down.
Answer:
glucose and galactose
concentration of the enzyme
temperature and pH
glucose and galactose
Explanation:
Enzymes are biological catalysts. They catalyze various biochemical reactions in the body. Enzymes are proteins.
The enzyme responsible for the breakdown of lactose is lactase. This enzyme catalyzes the breakdown of lactose to glucose and galactose. Galactose is about 65% as sweet as sucrose.
The rate of enzyme reaction is influenced by the concentration of the enzyme. As the concentration of the enzyme is increased, the velocity of the reaction proportionately increases.
Temperature and pH are important environmental factors that affect the rate of enzyme catalyzed reaction because they influence the activity of the enzyme and may even denature the enzyme.
Put the following elements in order from largest to smallest atomic radius
Br, Fe, Ga, Ca, Cu
Answer:
Ca-197
Ga-135
Cu-128
Fe-126
Br-114
Which model is based on Bohr's quantum model?
Model A
Model B
Model C
Model D
Answer:
Model D
Explanation:
Bohr's Model has a planetary look. Where the electrons are in an orbit.
Answer:
The answer is model D
Which of the following is true for a cell that has DNA present inside a nucleus? (5 points)
It must be a part of the oldest known fossils.
It must be a part of a eukaryote.
It must be a part of a bacterium.
It has a nucleoid.
I REALLY NEED THIS RIGHT NOW IF YOU SEE THIS AND NOW THIS PLEAASE HELPPP
Answer:
It must be a part of a eukaryote
Explanation:
Eukaryotic cells are larger than prokaryotic cells and have a “true” nucleus, membrane-bound organelles, and rod-shaped chromosomes. The nucleus houses the cell's DNA and directs the synthesis of proteins and ribosomes.
How many molecules are in 252.3 g H2S?
Answer:
4.457 × 10²⁴ molecules H₂S
General Formulas and Concepts:
Chemistry - Atomic Structure
Reading a Periodic TableUsing Dimensional AnalysisAvogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.Explanation:
Step 1: Define
252.3 g H₂S
Step 2: Identify Conversions
Avogadro's Number
Molar Mass of H - 1.01 g/mol
Molar Mass of S - 32.07 g/mol
Molar Mass of H₂S - 2(1.01) + 32.07 = 34.09 g/mol
Step 3: Convert
[tex]252.3 \ g \ H_2S(\frac{1 \ mol \ H_2S}{34.09 \ g \ H_2S} )(\frac{6.022 \cdot 10^{23} \ molecules \ H_2S}{1 \ mol \ H_2S} )[/tex] = 4.45688 × 10²⁴ molecules H₂S
Step 4: Check
We are given 4 sig figs. Follow sig fig rules and round.
4.45688 × 10²⁴ molecules H₂S ≈ 4.457 × 10²⁴ molecules H₂S
Answer:
[tex]\boxed {\boxed {\sf 4.457*10^{24} \ molecules \ H_2S}}[/tex]
Explanation:
First, find the molar mass of H₂S
Use the Periodic Table to find the mass of hydrogen and sulfur.
Hydrogen (H): 1.008 g/mol Sulfur (S): 32.07 g/molTo find the molar mass of H₂S, multiply the molar mass of the elements by the number of atoms of the element.
Hydrogen (2): (2)(1.008 g/mol) =2.016 g/molSulfur (1 atom): (1)(32.07 g/mol)= 32.07 g/molAdd.
2.016 g/mol + 32.07 g/mol =34.086 g/molNext, find the number of moles in the sample (252.3 g) Use the ratio of grams to moles.
[tex]252.3 / g * \frac{1 \ mol \ H_2S}{34.086 \ g }[/tex]
Multiply. The grams will cancel each other out.
[tex]\frac{252.3 / mol }{34.086 \ }=7.40186587 \ mol[/tex]
Finally, found the number of molecules using Avogadro's number (There are 6.022*10²³ molecules in 1 mole).
[tex]7.40186587 \ mol \ H_2S*\frac{6.022*10^{23} molecules \ H_2S}{1 \ mol \ H_2S}[/tex]
Multiply. The mole (mol) will cancel each other out.
[tex]7.40186587*{6.022*10^{23}\ molecules \ H_2S} = 4.45740363 *10^{24} \ molecules \ H_2S[/tex]
Round to the correct number of significant figures. The sample had 4 sig figs (2, 5, 2, 3), so round to 4 sig figs.
[tex]4.457*10^{24} \ molecules \ H_2S[/tex]
There are about 4.457 * 10²⁴ molecules of H₂S
What type of atom is hydrogen
Answer:
Protium
Explanation:
The hydrogen atom is the simplest of all atoms: it consists of a single proton and a single electron. In addition to the most common form of the hydrogen atom that is called protium, two other isotopes of hydrogen exist deuterium and tritium.
Answer: Hydrogen is a atom of the chemical element hydrogen.
Explanation:
A student has 0.75 L of a 5.0 M solution and dilutes it to make 3.5 liters. What’s the molarity of the diluted solution?
1.1 M
2.0 M
1.6 M
.93 M
The molarity of the diluted solution : 1.1 M
Further explanationDilution is the process of adding solvent to get a more dilute solution.
The moles(n) before and after dilution are the same.
Can be formulated :
[tex]\tt n_1=n_2\\\\M_1.V_1=M_2.V_2[/tex]
M₁ = Molarity of the solution before dilution
V₁ = volume of the solution before dilution
M₂ = Molarity of the solution after dilution
V₂ = Molarity volume of the solution after dilution
M₁=5
V₁=0.75
V₂=3.5
[tex]\tt M_2=\dfrac{M_1.V_1}{V_2}\\\\M_2=\dfrac{5\times 0.75}{3.5}\\\\M_2=1.07\approx 1.1[/tex]
When 33 g of CaO and 10 g of H2O react, how many grams of calcium hydroxide would you expect to be produced* Explain your answer.
Answer:
Calculate the number of moles of oxygen required to react exactly with 4.30 ... How many moles of NH3 can be made from 2.00 moles of Nz if you have excess Hz? ... 10. How many grams of water are made when 3.00 moles of butanol is combusted? ... If 50.0 g of calcium oxide were produced, how many grams of calcium ...
Answer:
41.44 g
Explanation:
First of all, we must put down the equation of the reaction;
[tex]CaO + H2O ----->Ca(OH)2[/tex]
Number of moles of CaO = 33g/56 g/mol = 0.59 moles
Number of moles of H20 = 10g/18 g/mol = 0.56 moles
Since the reaction is in 1:1 mole ration, H2O is the limiting reactant
Hence;
mass of Ca(OH)2 produced = 0.56 moles * 74 g/mol = 41.44 g
5. Which elements are examples of nonmetals?
a) Sodium, potassium, and calcium
b) Silicon, germanium, and astatine
c) Barium, iron, cobalt
d) Argon, sulfur, oxygen
Answer:
B
Explanation:
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Genesis lays an object on the table in a well-lighted room the object absorbs all visible light waves what color object does genesis see?
Answer:
The object Genesis sees is black.
Explanation:
The color an object reflects represents what the object's color is. For example, if a block reflects blue light, then only blue light is sent to our eyes, and hence we see the block as blue.
If an object absorbs all visible light waves, then, that means there's no visible light reflected, and we cannot see any color the object has. Hence, it is black in our eyes.
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If 1 kg of fuel is used in the above fusion reaction (2 1H + 3 1H--> 4 2He+1 0N) , the resulting helium has a mass of 0.993 kg. In other words, 0.007 kg of mass is converted to energy. How much energy is produced by the fusion of 1 kg of hydrogen? (Hint: Use Einstein's equation, E = mc2, where E is energy in Joules, m is mass in kilograms, and c is the speed of light, 3 x 108 m/s.)
Answer:
E--> mc2
E--> 0.007 x (3x108)2
E--> 6.3 x 1014J
Explanation:
In pure metals, the atoms are arranged in orderly _______
and _______
Answer:
Rows and columns.
Explanation:
Each atom gives up some of its electrons to create a kind of sea of these randomly moving charged particles. It's these free-flowing electrons that make metals conductive.
Alec saw footage of a landslide on the news. He saw rocks falling from the side of a mountain, with some of them smashing into each other and breaking apart. Alec witnessed
A. erosion and weathering.
B. erosion and compacting.
C. weathering and compacting.
D. weathering and sedimentation.
Answer:
a
Explanation:
How many double bonds are in CO2?
O 1
o 2
O 3
Explanation:
In CO₂ there's 2 double bonds.
Structure:
O=C=O (linear) (180°)
Therefore,
Option C is correct✔
23) Assuming STP, how many moles are in 30 L SO2?
Answer:
1.34 moles SO₂(g)
Explanation:
At STP 1 mole of any gas occupies 22.4 Liters. So, for 30 Liters ...
moles SO₂(g) = 30L/22.4L·mol⁻¹ = 1.34 moles SO₂(g)
13. Given the table representing the subatomic particles
in four different atoms:
Atom
Number of Number of Number of
Protons Neutrons Electrons
A
4
4
4
E
5
7
5
G
6
7
6
J
12
12
12
Which atom has a mass of 12 u?
A) A
B) E
C) G
D) J
Answer: E
Explanation:
What causes objects to speed up, slow down, and change directions?
PLS HELP ASAP I DONT HAVE TIME ONLY 5 MINUTES AND IM DOING OTHER THINGS HELPP
Answer:
The reactants of photosynthesis are Carbon Dioxide and water. The products are Glucose (or starch/sugar) and Oxygen. The autotroph uses light energy from the sun in order to complete this process. In the formula, the arrow is the light energy.
Explanation:
Answer:
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Explanation:
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a speed-time graph which the displayed data forms a straight line is a example of?
Answer:
constant speed or a horizontal line is an rest
Explanation: