Answer:
Grassland
Explanation:
Grasslands have too little water to support trees as it does not rain very often in more temperate Grasslands
Which of the following is true of fault-block mountains and volcanic mountains but not true of folded mountains?
The Answer is not D
Form from the buildup of lava and ash
May have a steeply sloping, jagged appearance
May have a gently sloping, dome-shaped appearance
Form at both convergent and divergent plate boundaries
Answer:
This one seems tricky, but the answer is B.
Explanation:
The first answer choice is wrong because it only applies to volcanic mountains.
C. would be true for folded mountains and volcanic mountains, but not fault-block mountains. Fault-block mountains have steep slopes and jagged surfaces; hence why B is correct.
D. is wrong because it applies to all three types of mountains mentioned.
Really, volcanic mountains can have gentle slopes and steep slopes, as well as jagged appearances and dome-shaped appearances. All that has to be assessed is the characteristics of fault-block mountains. This would be described in answer choice B.
A compound decomposes by a first-order process. If 37 % of the compound decomposes in 60 minutes, the half-life of the compound is ________minutes.
Answer:
90 minutes
Explanation:
The half life of a first order reaction is;
t1/2 = ln(2) / k
To solve for t;
The integral rate expression for a first order reaction is;
ln[A] = ln[Ao] - kt
t = 60 minutes
Final Concentration = [A] = 100 - 37 = 63
Initial Concentration = [Ao] = 100
ln(63) = ln(100) - k (60)
k (60) = ln (100) - ln(63)
k = 0.4620 / 60 = 0.0077
Inserting the value of k in the half life equatin;
t1/2 = ln(2) / 0.0077 = 90 minutes
4.Calculate the volume of 40g of Helium (He) at rtp.
Answer:
2.24dm³
Explanation:
Given parameters:
Mass of He = 40g
Unknown:
Volume of Helium = ?
Solution:
To solve this problem, we convert the given mass to number of moles.
Number of moles = [tex]\frac{mass}{molar mass}[/tex]
molar mass of He = 4g/mol
Number of moles = [tex]\frac{4}{40}[/tex] = 0.1mole
So;
1 mole of gas at rtp occupies a volume of 22.4dm³
0.1 mole of He will occupy a volume of 0.1 x 22.4 = 2.24dm³
C6H12O6 + 6O2 + 38ADP + 38Pi => 6CO2 + 6H2O + 38ATP is the chemical equation for
Answer:
C6H12O6 + 6O2 + 38ADP + 38Pi => 6CO2 + 6H2O + 38ATP is the chemical equation for cellular respiration
Explanation:
Cellular respiration is the process by which cells breakdown glucose molecules to produce energy in the form of ATP molecules and release waste products such as carbon dioxide and water molecules. Cellular respiration involves a series of reaction pathways such as glycolysis, pyruvate oxidation, citric acid cycle and the oxidative phosphorylation pathway.
The first step of glycolysis breaks down a glucose molecule to release two pyruvate molecules.
In pyruvate oxidation, two molecules of pyruvate are oxidized to acetyl-CoA molecules.
In the citric acid cycle, the acetyl-CoA molecules are used to produce the electron carriers NADH and FADH2.
In the oxidative phosphorylation pathway, NADH and FADH2 donate their electrons to oxygen and ATP molecules are produced using the energy of electron transfer and proton-pumping.
The overall equation for cellular respiration is given as:
C6H12O6 + 6O2 + 38ADP + 38Pi => 6CO2 + 6H2O + 38ATP
PLEASE ANSWER ITS DUE IN ABOUT AN HOUR!! What other body system does the diaphragm belong to?
Answer:
The respiratory system
Explanation:
Answer:
The diaphragm belongs to the respiratory system, digestive system, and muscular system.
I'm not too sure on the muscular system, but the other two 100%
Explanation:
Hopefully, this helps. :)
What is the area of the square of the leg 6?
What is the area of the square of the leg 8?
What is the area of the hypotenuse square?
What is the length of the hypotenuse?
Answer:
the area of the square of the leg 6: 6² = 36
the area of the square of the leg 8: 8² = 64
the length of the hypotenuse: √6² + 8² = √100 = 10
the area of the hypotenuse square: 10² = 100
Step-by-step explanation:
the area of the square of the leg 6: 6² = 36
the area of the square of the leg 8: 8² = 64
the length of the hypotenuse: √6² + 8² = √100 = 10
the area of the hypotenuse square: 10² = 100
SEnD NuuuDdddeeeeSss I you acccalty do you will get crown
Lori argues that atoms are not living, what cell theory example is this? Please help thank you
Answer:
No (I edited it because some people were confused )
Explanation:
In this way, cells are different from atoms and molecules. Atoms are not living things; they do not need food, water, and air; and they do not reproduce themselves. Cells are alive. Cells are bigger than atoms.
To see the number of atoms of an element in a given molecule we need to multiply stoichiometry to the number that is written on the foot of the element that is stoichiometry. Therefore, atoms are basic building block of any matter. Cells are building block of any living organism.
What is atom?Atom is the smallest particle of any element, molecule or compound. Atom can not be further divided. Atoms contains nucleus in its center and electron that revolve around the atom in fixed orbit.
In the nucleus, proton and neutron are present. Electron has -1 charge while proton has +1 charge. Neutron is neutral that is it has no charge. So overall the charge of nucleus is due to only proton, not by neutron. Atoms are basic building block of any matter. Cells are building block of any living organism.
Therefore, atoms are basic building block of any matter. Cells are building block of any living organism.
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_Li + __F2 → _LIF
How do I balance this?
Answer:
2Li + F₂ → 2LiF
Explanation:
The reaction expression is given as:
Li + F₂ → LiF
We are to balance the expression. In that case, the number of atoms on both sides of the expression must be the same.
Let use a mathematical approach to solve this problem;
Assign variables a,b and c as the coefficients that will balance the expression:
aLi + bF₂ → cLiF
Conserving Li: a = c
F: 2b = c
let a = 1, c = 1 and b = [tex]\frac{1}{2}[/tex]
Multiply through by 2;
a = 2, b = 1 and c = 2
2Li + F₂ → 2LiF
What information can be deduced from knowing which Group an element belongs?
A. Family name
B .Number of valence electrons
C. Chemical properties
D. All the above
Answer:
D. All of the above
Explanation:
Elements are being grouped in the "Periodic Table" in order to associate them with other elements that have similar properties. These elements also have the same number of "valence electrons" or electrons located in the outer shell. The groups are then classified into their "family names." For example, Group 1 is named "Alkali metals" because the elements within it are very reactive and have high conductive property. The valance electron of the elements in this group is "1."
I have this question in science so someone please help me
I would say C.) It has been updated and modified based on the new data
PLEASEEEE HELPPP ME WITH THISS
A person riding in the passenger seat of a car is "pushed" into the car door as the car makes a sharp left turn.
Newton's 2nd Law
Newton's 1st Law
Newtons 3rd Law
Answer:
second law
Explanation:
Dry ice changes from a solid directly into a gas at room temperature. Sublimation is the transition of a substance directly from the solid to the gas phase without passing through an intermediate liquid phase. What does sublimation demonstrate
Answer:
The process in which a solid changes directly to a gas is called sublimation. It occurs when the particles of a solid absorb enough energy to completely overcome the force of attraction between them. Dry ice (solid carbon dioxide, CO2) is an example of a solid that undergoes sublimation.
The total pressure in a flask containing only hydrogen and helium is 580 mmHg. If hydrogen accounts for 70% of the pressure and helium contributes 30% of the pressure, what is the partial pressure of the hydrogen gas?
A) 406 mmHg
B) 510 mmHg
C) 174 mmHg
D) 83 mmHg
Answer:
Answer choice c = 174
Explanation:
If you divide 30% into 580 you get 174. You can also check your work by doing 580 divided by 70%
30% divided by 580 = 174
the mass of the sun
what is the mass of the sun
Answer:
1.989 × 10^30 kg
Explanation:
Hope this helps! :3
☁️ Answer ☁️
A solar mass is the mass of the sun. Or, more precisely, it's 1.989 x 10^30 kilograms — about 333,000 Earths. Astronomers use a solar mass as a basic unit of mass.
Dear fool, you will always be a fool.
Happy April Fools Day.
Hope it helps.
Have a nice day noona/hyung
What is a disadvantage of using solar energy?
Help
Answer:
D, last one.
Explanation:
In order to use solar energy, we need solar panels. Which we need sun for it to heat up, and once there is the sun. The heat can hit the water, and cause the water to burn/boil
A gas has a pressure of 0.470atm at 60.0°C. What is the pressure at standard temp
Answer:
.385 atm .
Explanation:
pressure of a gas is proportional to absolute temperature .
P ∝ T
P₁ / P₂ = T₁ / T₂
Given P₁ = .47 atm , T₁ = 60 + 273 = 333
P₂ = ? , T₂ = 273 K
.47 / P₂ = 333 / 273
P₂ = .385 atm .
What element would be found in period 5 that has similar chemical properties to Al?
Answer:
Indium
Explanation:
That is Indium (In) which is in same group as Al
Spring ends on what day?
summer solstice
winter solstice
vernal equinox
autumnal equinox
Answer:
June 20
Explanation:
PLEASE ANSWER ASAP!! Would a chemical being corrosive be a chemical property or a physical property?
Answer:
corrosiveness is a chemical property
What part of a potential energy diagram reveals the enthalpy of reaction?
A. The difference in energy between the activation energy and the
products
B. The difference in potential energy between the reactants and
products
C. The difference in energy between the reactants and the activation
energy
D. The potential energy of the reactants plus the potential energy of
the products
Answer:
The difference in potential energy between the reactants and products
Explanation:
The difference in potential energy between the reactants and products reveals the enthalpy of reaction, hence option B is correct.
What is enthalpy of a reaction?The change in the enthalpy of a chemical reaction that takes place at constant pressure is known as the heat of reaction also known as the enthalpy of reaction. It is a unit of measurement for thermodynamics.
In a thermodynamic system, energy is measured by enthalpy. Enthalpy is a measure of a system's overall heat content and is equal to the system's internal energy plus the sum of its volume and pressure.
The difference between total product and total reactant molar enthalpies, computed for substances in their standard states, is the standard enthalpy of reaction for a chemical reaction.
Therefore, the difference in potential energy between the reactants and products reveals the enthalpy of reaction, hence option B is correct.
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The number of covalent bonds that an
In a covalent bond, two atoms are held together by the attraction between
atom can form depends on the number of
in the atom.
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Answer: please make the question more understandable
Explanation:
How many moles are in a 13.7g block of calcium?
0.342 mol Ca
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Atomic Structure
Reading a Periodic TableStoichiometry
Using Dimensional AnalysisExplanation:Step 1: Define
13.7 g Ca
Step 2: Identify Conversions
Molar Mass of Ca - 40.08 g/mol
Step 3: Convert
Set up: [tex]\displaystyle 13.7 \ g \ Ca(\frac{1 \ mol \ Ca}{40.08 \ g \ Ca})[/tex]Multiply/Divide: [tex]\displaystyle 0.341816 \ mol \ Ca[/tex]Step 4: Check
Follow sig fig rules and round. We are given 3 sig figs.
0.341816 mol Ca ≈ 0.342 mol Ca
Which best describes MgO?
1)This is an ionic compound; it is named
magnesium monoxide.
2)This is a covalent compound; it is named
magnesium monoxide.
3)This is an ionic compound; it is named
magnesium oxide.
4)This is a covalent compound; it is named
magnesium oxide.
Define energy and power then describe the relationship that exists between them.
Try for at least 3 complete sentences
Sentence starters:
Energy is.... Power is.... They are related because.....
Answer: With power and energy, power is units of energy divided by time. The same difference as distance and velocity. The units of power are watts, the units of energy are joules.
Explanation:
abcdefghijklmnopqrstuvwxyzExplanation:abcdefghijklmnopqrstuvwxyz
Which of the following best describes metallic bonding?
Answer:
D.the metal atom use their positive charges to gain additional electrons until every atom has eight valence electrons.
The statement which best describes the metallic bonding is (B). The valence electrons between the metals become decoalized and can move freely between the metallic cations.Hence the correct option is (B).
What is Metallic Bonding ?Chemical bonds known as metallic bonds are produced by the electrostatic attraction of positively charged metal ions and conduction electrons.
A structure of positively charged ions may be thought of as sharing free electrons.
Atoms in a metallic substance are held together by a force called the metallic bond. Atoms in such a solid are packed closely together. Each metal atom's outermost electron shell typically overlaps with a significant number of its nearby neighbors.
Therefore, The statement which best describes the metallic bonding is (B). The valence electrons between the metals become decoalized and can move freely between the metallic cations.Hence the correct option is (B).
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Beginning with hydrogen how do the chemical elements form?
PLS PLS HELP DUE TODAY!!
Please help me answer this question but in your own words!!!!
Answer:
when sodium reacts with chlorine atoms, sodium will give an electron which is negative charged to chlorine.it makes sodium(+) and chlorine (-)..then sodium will attract chlorine to form sodium chloride(NaCl)
Help me asap pls man
Answer:
C
Explanation:
A p orbital has the approximate shape of a pair of lobes on opposite sides of the nucleus.
Explanation:
A p orbital would have a du-bbell shape.
Options A and B show a spherical shape, which are for s orbitals.
Option D shows a double du-bbell / clover leaf shape, which is for d orbitals.
The answer is Option C.
P.S. The word is censored apparently, so be forgiving! Thanks~