Most animals obtain their nutrients by the consumption of other organisms. At the cellular level, the biological molecules necessary for animal function are amino acids, lipid molecules, nucleotides, and simple sugars. However, the food consumed consists of protein, fat, and complex carbohydrates.
Answer:Most animals obtain their nutrients by the consumption of other organisms. At the cellular level, the biological molecules necessary for animal function are amino acids, lipid molecules, nucleotides, and simple sugars. However, the food consumed consists of protein, fat, and complex carbohydrates.
Explanation:
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A motorcycle and its rider have a combined mass of 1250 kg. They travel inside
a vertical loop with a radius of 7.13 m. At the lowest point, the speed is 22.7 m/s. How much force does the track exert on the motorcycle, at this lowest
point, to keep the rider in the loop?
Lily took 57 seconds to walk from classroom to library. If the distance between the classroom and library was 38 m, at what average speed did Lily walk in m/min?
___ m/min
Part B
Do you think that the phases of the moon follow a pattern
ASAP, NO TROLLS 20 points!!!!
Answer:
1.- Chemical change
2.- Because the atoms in the image are tranformed into a new molecule
3.- Yes, it does
4.- Due to the amount of atoms are the same both in products and reagents
Explanation:
Answer:
1.- Chemical change
2.- Yes it does ,because the atoms in the image are transformed into a new molecule
3.- Yes, it does because energy is not being created or destroyed
4.- Due to the amount of atoms are the same both in products and reagents
a tomato plant cell has 24 chromosomes how many chromosomes will each daughter cell have after the cell undergoes a mitotic division
Answer: 12
Explanation:
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answer c
How many grams of sulfur are in 3.54 g of H2S?
Answer:
3.329 g
Explanation:
First you need to determine the molar mass of H2S which is 34.1 g/mol.
With that we know that to find the moles of H2S we just divide the mass of sample with the molar mass.
3.54 g / 34.1 g/mol = 0.103812317 mol of H2S
This means that there is also 0.103812317 mol of sulfur since there is 1 mole of sulfur per 1 mole of H2S.
The molar mass of sulfur is 32.065 g/mol and to find the mass of sulfur you need to multiply the molar mass with the moles of the compound.
0.103812317 mol * 32.065 g/mol = 3.329 g of sulfur
Let me know if you get something else or if something is unclear in the comments so that we can figure it out.
What is the electron configuration of a fluoride ion (F-) in the ground state?
1522s22p?
1822s22p4
1522s22p6
1522s22p5
Which liquid has the weakest intermolecular forces?
Answer:
Oil- Only London Dispersion Forces (the weakest intermolecular force)
Water- London Dispersion, Dipole-Dipole, and Hydrogen Bonding
Which property of matter is conserved in chemical reactions and shown by balanced equations?
A. mass
B. volume
C. density
D. shape
Answer:
Mass is your answer
Explanation:
This reaction type occurs when different atoms in two different compounds trade places.
A) synthesis
B) decomposition
C) double replacement
D) single replacement
Double replacement is the reaction that typically occurs when different atoms in two different compounds trade places (Option C).
What is double-replacement?Double-replacement is a class of chemical reaction where two atoms can exchange their places to generate new combinations.
This type of chemical reaction (double-replacement reaction) is very common in nature.In conclusion, double replacement is the reaction that typically occurs when different atoms in two different compounds trade places (Option C).
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Which is the largest measurement? *
grams
Milligrams
Kilograms
Centigrams
Answer:
KilogramsExplanation:
[tex]--------------------------------------------[/tex]
Microgram = 0.000001 Grams = Smallest Unit of Weight
1 ) Milligram = 0.001 Grams =
2 ) Centigram = 0.01 Grams
Decigram = 0.1 Grams
3 ) Gram = 1 Gram
Dekagram = 10 Grams
Hectogram = 100 Grams
4 ) Kilogram = 1000 Grams = Largest Unit of Weight = Answer
[tex]--------------------------------------------[/tex]
Hope this helps! <3
[tex]--------------------------------------------[/tex]
Kilograms are the largest unit among the options listed.
The metric system is a decimal-based system of measurement widely used around the world. It provides a standardized and convenient way to express measurements by utilizing prefixes that represent powers of 10.
In the metric system, the base unit for measuring mass is the gram (g). The gram is a relatively small unit, and to express larger or smaller masses, prefixes are added to the base unit. Here are some commonly used metric prefixes for mass.
The largest measurement among the options provided is kilograms (kg). Kilograms are larger units of measurement compared to grams (g), milligrams (mg), and centigrams (cg). The metric system follows a decimal-based system, where each unit is 10 times larger or smaller than the adjacent unit.
1 kilogram (kg) is equal to 1,000 grams (g), 1,000,000 milligrams (mg), and 10,000 centigrams (cg). Therefore, kilograms are the largest unit among the options listed.
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6)
Use VSEPR to predict the electron-pair geometry of O2.
A)
linear
B)
trigonal planar
C)
tetrahedral
ientific
Calc
D)
trigonal bipyramidal
Answer:
A.) Linear
Explanation:
The geometry of the molecular oxygen (O₂) is linear. Thus, option (A) is correct.
What is VSEPR theory?Valence shell electron-pair repulsion theory (VSEPR theory) is used to predict the molecular structure, and bond angles around a central atom of a molecule by using the number of bonds and lone electron pairs in Lewis structure.
The VSEPR model considers that electron pairs present in the valence shell of a central atom have an arrangement so that repulsions between these electron pairs will be minimized by maximizing the distance between them.
The valence electrons of a central atom form either bonding pairs or lone pairs. The electrostatic repulsion of these electrons is minimized when several regions of high electron density maximum possible distance.
The oxygen molecule has linear geometry with a bond angle of 180°. Each oxygen in oxygen molecule has two lone pairs of electrons on it.
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Name three instructions that DNA provides to a cell
Answer:
The instructions in a gene that tell the cell how to make a specific protein. A, C, G, and T are the "letters" of the DNA code; they stand for the chemicals adenine (A), cytosine (C), guanine (G), and thymine (T), respectively, that make up the nucleotide bases of DNA.
hope it helps !
DNA contains the commands that an organism requires to develop, survive, and reproduce. DNA sequences must be transformed into messages that can be used to make proteins, which are the complex molecules that do the majority of the work in our bodies, in order to perform these functions.
What is DNA?Deoxyribonucleic acid is a polymer consisting of two polynucleotide chains that coil into one another to form a double helix.
It contains genetic information in the form, fully operational, growth, and reproduction of all kinds of organisms and viruses. Nucleic acids include DNA and ribonucleic acid.
DNA stores information as a code composed of four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T).
DNA contains all of the instructions that an organism needs to develop, survive, and reproduce.
To perform these functions, DNA sequences must be transformed into messages that can be used to make proteins, which are the complex molecules that do the majority of the work in our bodies.
Thus, these are some of the instructions that DNA provides to cell.
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Help fast please What is the definition of homeostasis?
A. Your body out of balance
B. Being sick
C. Your body not needing any regulation
D. Your body systems staying in balance
Answer:
I think its D
Explanation:
Answer:
D
Explanation:
It's B because homeostasis is the ability to maintain a relatively stable internal state that persists despite changes.
Hope this helps!!! If this is incorrect, I'm so sorry! Have a lovely day.
name the compounds that are likely to form: CaKr, Na2S, BaCl3, MgF
Answer:
CaKr Na2S BaCl3 MgF. CaKr-Kr is a noble gas Na2S-not balanced BaCl3-not balanced MgF-not balanced.
Explanation:
The CaKr is compound which is likely to form because its charge will be balanced.
What is compound?A chemical compound is referred to as a substance made up of several similar molecules linked together with chemical bonds and containing atoms from multiple elements. A molecule made up of only one element's atoms is hence not a compound.
What is charge?It gains charge when electrons are transferred between each other. When the count of protons is higher than the count of electrons, the charge is positive.
Ca has 1 charge and Kr has also 1 charge. hence, CaKr will form as a compound. The charge of [tex]Na_{2}S, BaCl_{3}[/tex] and MgF is not balanced that's why they can not form compound.
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What is the name of the following chemical compound?
Answer:
Iron(II) oxide
Explanation:
Iron(II) oxide or ferrous oxide is the inorganic compound with the formula FeO. Its mineral form is known as wüstite.
How many grams of NH4ClO4 would dissolve in 250 mL at 30 C
chnge color is a sign of chemical reaction
1. The thermal interconversion of the axial and equatorial substitutents of the chair conformation of cyclohexane is extremely slow because the two forms are separated by a relatively high activation energy barrier, 10.5 kcal/mol (3672 cm−1). With CN substituents, the equatorial form is only 0.24 kcal/mol (84 cm−1) lower in energy than the axial form. Show how you would determine the ratio between the concentrations of the equatorial and axial forms using the Boltzmann distribution.
Answer:
The ratio is [tex]0.67 : 1[/tex]
Explanation:
From the question we are told that
The activation energy separating the equatorial and the axial form is [tex]\Delta E = 0.24\ kcal/mol[/tex]
Generally according to the Boltzmann distribution , the relationship between concentration(in terms of number of molecule) of the equatorial form and the concentration of the axial form is mathematically represented as
[tex]N = N_o e^{-\frac{\Delta E }{RT} }[/tex]
Here [tex]N_o[/tex] is the number of molecule in equatorial form and N is the number of the molecules in the axial form.
R is the gas constant with value [tex]R = 1.987 *10^{-3} \ kcal\cdot mol^{-1} \cdot k^{-1}[/tex]
T is the temperature of the room with value [tex]T = 25^oC = 298 \ K[/tex]
So
[tex]\frac{N}{N_o} = e^{-\frac{0.24 }{1.987*10^{-3} * 298} }[/tex]
=> [tex]\frac{N}{N_o} = 0.67[/tex]
So the ratio of the concentration of equatorial form to the axial form is
[tex]0.67 : 1[/tex]
I need this answer. any thing will help
Answer: condensaytion
Explanation: its reverse vaporation instead of water turning into gas gas turns into water
I NEED HELPPPPPP ASAP
Answer:
1. Reactants collect in chloroplasts
2. A chemical reaction occurs
3. Products result as food and water
how many miles of hydroxide are in 8.02 x 10^25 particles of hydroxide? (explain your answer)
Answer:
1.33 × 10² molesExplanation:
To find the number of moles in a substance given it's number of entities we use the formula
[tex]n = \frac{N}{L} \\[/tex]
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question we have
[tex]n = \frac{8.02 \times {10}^{25} }{6.02 \times {10}^{23} } \\ \\ = 1.33 \times {10}^{2} \: \: \: moles[/tex]
Hope this helps you
lonic bonds form between metals and
o metalloids O nonmetals o metalloids
The table below lists some properties of a sample of lauric acid.
Property
Value
Volume
Mass
79.6 mL
70.0229
222°C
Boiling point
Number of
moles
0.350
Which of these is an intensive property of this sample?
Answer:
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Explanation:
Answer: boiling point
Explanation:
Which statement best explains what happens to a leaf when it has lost much-needed water?
Answer:
its turgor pressure decreases
Explanation: This is also important because this function regulates water loss within the plant. Lower turgor pressure can mean that the cell has a low water concentration and closing the stomata would help to preserve water. :-)
When a leaf loses much-needed water, its turgor pressure would decrease. Hence Option A is Correct
What is Turgor pressure ?Turgor Pressure is created in the cells of a leaf when there is enough water. The water stretches the cell membrane outward, creating a kind of pressure.
When the cells lose water, the cell membrane shrinks inward and loses the supporting pressure.
Thus, the turgor pressure created by the presence of water is lost by the absence of water.
The absence of water also affects the rate of photosynthesis and transpiration negatively and not positively. A leaf losing water has no bearing on the atmospheric pressure.
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Given the balanced equation: 2 C₄H₁₀ + 13 O₂ ➞ 8 CO₂ + 10 H₂O, what is the mole to mole ratio of CO₂ to O₂ ? *
4 points
13/2
8/10
13/8
8/13
Answer:
8/ 13
Explanation:
.................................
the amount of energy required to move an electron
Answer:
quantum of energy
What is sodium oxide when it’s broken down into its elements?
Answer:
Explanation:Typically, manufactured glass contains around 15% sodium oxide, 70% silica (silicon dioxide) and 9% lime (calcium oxide). The sodium carbonate "soda" serves as a flux to lower the temperature at which the silica mixture melts
What is an example of extensive property
Answer:
Mass & Volume
Explanation:
An Extensive Property is a property that depends on the amount of matter in a sample. Mass and volume are examples of extensive properties. Meanwhile, Color, Temperature, and Solubility are examples of Intensive Properties.