Water is essential for life and is important for plant growth and function. which property of water is most responsible for its ability to move from the root of a plant to the stem?
Answers
This connection produces a characteristic of water molecules called cohesion, which is important. Plants can absorb water at their roots thanks to the cohesion of water molecules.
Cohesion refers to the attraction of water molecules to one another and to other materials, such as the walls of plant xylem. Because they are polar, water molecules behave in this manner. Water from the roots of plants is transferred to the leaves, stem, and other portions of the plant body through vascular tissue known as the xylem. The roots of plants absorb this type of moisture and water from the earth. It has a polar nature. It is a universal solvent. It has a high specific heat as well as a high vaporization temperature. It has properties of adhesion and cohesion. Its solid phase is thinner than its liquid phase.
To learn more about polar click here https://brainly.com/question/30002497
#SPJ4
Related Questions
A cone-shaped landform develops when magma erupts from the _______ forming a volcano science
Answers
Answer:
Magma chamber
Explanation:
When a volcano erupts, the magma (also called lava when out of the magma chamber) erupts out of the vents.
What are some ways we can measure how much energy a substance has?
Answers
The sum of all an object's atoms and molecules' energies makes up the substance's total energy.
What is a substance's total amount of energy?The sum of all an object's atoms and molecules' energies makes up the substance's total energy. Both the potential energy resulting from the interactions between molecules and the kinetic energy of the particles resulting from the motions of molecules within the material and of atoms inside molecules make up thermal energy.The equation q = m c T , where m is the mass of the sample, c is the specific heat, and T is the temperature change, may be used to determine how much heat is acquired or lost by a sample (q).
To learn more about energy refer to:
https://brainly.com/question/13881533
#SPJ1
In Lab, We Used Oxone To Oxidize Borneol To Camphor. Write Chemical Equations Describing The Reaction Of NaCl And Oxone.
Answers
Answer:
NaO2SO3 -> Na2SO4 + O2
Explanation:
The reaction of NaCl (sodium chloride) and Oxone (potassium peroxymonosulfate) is described by the following chemical equations:
The first step in the reaction is to dissociate oxone into its component ions:
Oxone (potassium peroxymonosulfate) -> K+ (potassium ion) + O2SO3- (peroxymonosulfate ion)
The peroxymonosulfate ion (O2SO3-) then oxidizes the sodium chloride (NaCl) to produce sodium peroxymonosulfate (NaO2SO3) and chlorine gas (Cl2):
NaCl + O2SO3- -> NaO2SO3 + Cl2
The sodium peroxymonosulfate (NaO2SO3) then decomposes into sodium sulfate (Na2SO4) and oxygen gas (O2):
NaO2SO3 ) -> Na2SO4 + O2.#SPJ4
.
Identify the solvent and solute in each of the following.A. A solution containing 25.0 g of NaBr and 100.0 g of water.B. A solution containing 30.0 mL of ethanol and 20.0 mL of water.C. A solution containing 0.5 g of AgNO3and 15 mL of water.
Answers
A. In this solution, water is the solvent and NaBr is the solute. The water molecules surround the Na+ and Br- ions, dissolving them and keeping them in a homogeneous mixture.
B. In this solution, both ethanol and water are solvents, and they are miscible. Ethanol molecules are surrounded by other ethanol molecules, and water molecules are surrounded by other water molecules. Therefore, each solvent dissolves in the other, and there is no clear distinction of solute and solvent.
C. In this solution, water is the solvent and AgNO3 is the solute. The water molecules surround the Ag+ and NO3- ions, dissolving them and keeping them in a homogeneous mixture.
A. In the solution containing 25.0 g of NaBr and 100.0 g of water, water is the solvent and NaBr is the solute. This is because water is present in greater quantity and serves as the medium in which the NaBr is dissolved.
B. In the solution containing 30.0 mL of ethanol and 20.0 mL of water, ethanol is the solute and water is the solvent. This is because water is present in greater quantity and serves as the medium in which the ethanol is dissolved.
C. In the solution containing 0.5 g of AgNO3 and 15 mL of water, water is the solvent and AgNO3 is the solute. This is because water is present in greater quantity and serves as the medium in which the AgNO3 is dissolved.
Learn more about solvent here:
https://brainly.com/question/30885015
#SPJ11
A 55.0 g piece of iron at 505 ° C is put into 735 grams of water at 15.0 ° C. What is the final temperature of the water and the iron?
Answers
Answer:
It would be 95.3
Explanation:
Which of the following is the best balance to maintain low levels of carbon dioxide in the atmosphere?
a small volume of plants with a small number of carbon sources
a small volume of plants with a large number of carbon sources
a large volume of plants with a small number of carbon sources
a large volume of plants with a large number of carbon sources
Answers
Answer: a large number of plants with a small number of carbon sources.
Explanation: the Formula for photosynthesis is
6CO2 + 6H2O → C6H12O6 + 6O2
So to use the carbon dioxide from the atmosphere to produce sugar and oxygen the more the atmosphere CO2 is available rather than other sources of carbon would allow plants to fully utilize the CO2 in the atmosphere.
a large number of plants would use more CO2 than a small number of plants.
What is the electron configuration for sulfur? A. 1s2 2s2 2p6 3s2 3p4 B. 1s2 1p6 2s2 2p6 3s2 C. 1s2 2s2 2p6 3s2 3p3 4s1 D. 1s2 2s2 2p6 3p1 3d5.
Answers
The electron configuration for sulfur is 1s2 2s2 2p6 3s2 3p4. Therefore the correct option is A. 1s2 2s2 2p6 3s2 3p4
Electron configuration refers to the arrangement of electrons in the atomic or molecular orbitals of an atom. For sulfur (S), the electron configuration is as follows: 1s2 2s2 2p6 3s2 3p4. This configuration describes how the 16 electrons of sulfur are distributed among its electron shells.
In sulfur's electronic configuration, the first shell (1s) contains 2 electrons, the second shell (2s and 2p) contains 8 electrons, and the third shell (3s and 3p) contains 6 electrons. The valence shell, which is the outermost shell, consists of the 3s and 3p orbitals and holds 6 electrons.
Specifically, sulfur has 2 electrons in the 1s orbital, 2 electrons in the 2s orbital, 6 electrons in the 2p orbitals, 2 electrons in the 3s orbital, and 4 electrons in the 3p orbitals. This distribution gives sulfur two unpaired electrons in its third valence shell.
In conclusion, sulfur's electron configuration is 1s2 2s2 2p6 3s2 3p4. This configuration indicates that sulfur has 16 electrons distributed among its electron shells, with the third valence shell containing two unpaired electrons. The electron configuration provides insight into the chemical behavior and bonding tendencies of sulfur, as it typically forms two bonds based on its unpaired electrons.
To know more about electron configuration click here:
https://brainly.com/question/31812229
#SPJ11
5. View the image below and answer the question.
Answers
Answer:
where is the question?
If you have 1.8 moles, how many atoms would you have?
Answers
Answer: 1.08×10^24 atoms
What is the best alternative to safely cooling foods without a blast chiller?
Answers
Moving hot food in a covered pan to a cooler space, such as a storage room, or submerging it in ice water, is another option. Ice can also be used to hasten the cooling process.
Soups can be chilled by submerging them in cold water. This technique aids in a swift and secure drop in food temperature. To make a slush, put some ice in a big container or sink and add some water. After that, put the plate of food to be chilled into the ice bath. bathing in ice water and stirring the food often.Food is stirred with ice paddles, which are plastic containers that have been frozen after being filled with water.using ice as a component (if water is an ingredient).chiller that jars or tumbles.
Learn more about submerging Here:
https://brainly.com/question/15077680
#SPJ4
PLEASE HELP
which of the following medulla patters is represented in the image below.
Answers
Answer:
fragmented
Explanation:
i hope this is right
at stp what is the volume of 5.35 moles of methane ch4
Answers
Answer:
22.4 L
Explanation:
Which of the following are functions of the stomach?
Answers
Answer:
1-Temporarily store food.
2-Contract and relax to mix and break down food.
3-Produce enzymes and other specialized cells to digest food
Please Help!!!!
If the atomic mass of an element is 22 and the atomic number of said element is 10, what is the number of protons, electrons, and neutrons in this element?
Answers
The element is Neon
The protons is the same as the atomic number (10 protons)
The electrons are the same as the number of protons in a neutral atom (10 electrons)
The neutrons can be found by subtracting the protons from the atomic mass (22-10=12 neutrons)
Which properties are NOT commonly used to identify minerals? Select one: a. reaction with acid b. cleavage and fracture c. specific gravity d. mass and size
Answers
Answer:
Mass and size are properties not commonly used to identify minerals.
For neutral molecules, which statements about covalent Lewis structures are true?
a. Hydrogen atoms are often the central atom of a Lewis structure.
b. Each atom of a Lewis structure must have eight electrons.
c. For a neutral molecule, the number of electrons in the Lewis structure is the sum of the valence electrons for the atoms.
d. Electrons of covalent compounds may be shared between atoms.
Answers
Based on the given terms, here's an analysis of the statements about covalent Lewis structures for neutral molecules: Hydrogen atoms are often the central atom of a Lewis structure. - False. Hydrogen atoms are typically terminal atoms because they can only form one bond.
a. Each atom of a Lewis structure must have eight electrons. - False. This statement is not true for all atoms. It is true for elements following the octet rule, but hydrogen only needs two electrons to achieve a full outer shell, and some elements can have expanded octets.
b. For a neutral molecule, the number of electrons in the Lewis structure is the sum of the valence electrons for the atoms. - True. In a neutral molecule, the Lewis structure represents the distribution of valence electrons among the atoms, and the total number of electrons in the structure equals the sum of the valence electrons for each atom.
c. Electrons of covalent compounds may be shared between atoms. - True. In covalent compounds, electrons are shared between atoms to form covalent bonds, resulting in the stability of the molecule.
Learn more about Lewis structure here:
brainly.com/question/29603042
#SPJ11
Write the rate of reaction in terms of the rate of disappearance of reactant and the rate of formation of the product NO(g) +O3 _NO2(g) + O2(g)
Answers
Answer:
See Explanation
Explanation:
The rate of reaction means the same thing as the speed of a reaction. It refers to how quickly or slowly the reactants disappear or how quickly or slowly the products appear per unit time.
The equation of the reaction is; NO(g) + O3(g)→ NO2(g) + O2(g)
We can write differential equations to show the rate of disappearance of reactants or rate of appearance of products as shown below where the rate of reaction has been denoted as r;
r = -d[NO(g)]/dt = -d[O3(g)]/dt
OR
r = d[NO2(g)]/dt = d[O2(g)]
The negative signs shows that the concentration of reactants decreases with time while the positive sign shows that the concentration of products increases with time.
calculate the percent composition of calcium acetate ca c2h3o2 2
Answers
The percent composition of calcium acetate is 29.89% calcium, 17.92% carbon, 4.52% hydrogen, and 47.67% oxygen.
To calculate the percent composition of calcium acetate (Ca(C2H3O2)2), you need to determine the total atomic mass of each element in the compound and divide it by the molar mass of the entire compound.
The atomic mass of calcium (Ca) is 40.08 g/mol, the atomic mass of carbon (C) is 12.01 g/mol, the atomic mass of hydrogen (H) is 1.01 g/mol, and the atomic mass of oxygen (O) is 16.00 g/mol. The molar mass of calcium acetate is:
1 Ca atom x 40.08 g/mol = 40.08 g/mol Ca
2 C atoms x 12.01 g/mol = 24.02 g/mol C
6 H atoms x 1.01 g/mol = 6.06 g/mol H
4 O atoms x 16.00 g/mol = 64.00 g/mol O
Total molar mass = 134.16 g/mol
To calculate the percent composition of each element:
% Ca = (40.08 g/mol Ca / 134.16 g/mol) x 100% = 29.89%
% C = (24.02 g/mol C / 134.16 g/mol) x 100% = 17.92%
% H = (6.06 g/mol H / 134.16 g/mol) x 100% = 4.52%
% O = (64.00 g/mol O / 134.16 g/mol) x 100% = 47.67%
Therefore, the percent composition of calcium acetate is 29.89% calcium, 17.92% carbon, 4.52% hydrogen, and 47.67% oxygen.
To learn more about percent composition https://brainly.com/question/20393858
#SPJ11
Submarines need to be extremely strong to withstand the extremely high pressure of
water pushing down on them. An experimental research submarine with a volume of
15,000 liters has an internal pressure of 1.01 atm. If the pressure of the ocean breaks
the submarine how big will the bubble of air in the submarine be if the pressure outside
the sub is 1086 atm?
Answers
The volume of the air bubble that will form if the pressure outside the submarine breaks it will be approximately 13.95 liters.
What is the volume?
Assuming that the temperature remains constant, we can use Boyle's law to determine the volume of the air bubble that will form if the pressure outside the submarine breaks it. Boyle's law states that the pressure of a gas is inversely proportional to its volume when temperature is held constant.
Let V1 be the initial volume of the air in the submarine, P1 be the initial pressure inside the submarine (1.01 atm), P2 be the pressure outside the submarine (1086 atm), and V2 be the final volume of the air bubble.
According to Boyle's law, we have:
P1 x V1 = P2 x V2
Substituting the given values, we get:
1.01 atm x 15,000 L = 1086 atm x V2
Solving for V2, we get:
V2 = (1.01 atm x 15,000 L) / 1086 atm = 13.95 L
Therefore, the volume of the air bubble that will form if the pressure outside the submarine breaks it will be approximately 13.95 liters.
To know more about volume, visit:
https://brainly.com/question/11066220
#SPJ1
Complete question is: Submarines need to be extremely strong to withstand the extremely high pressure of water pushing down on them. An experimental research submarine with a volume of 15,000 liters has an internal pressure of 1.01 atm. If the pressure of the ocean breaks the submarine, 13.95 liters the bubble of air in the submarine be if the pressure outside the sub is 1086 atm.
When two or more simple machines are combined they form a(n) ____.
A. Compound machine
B. Complex machine
C.intricate machine
D.inefficient machine
Answers
Answer:
A
Explanation:
A compound machine is a combination of two or more simple machines.
What happens to the number pf protons in an atom as you move across a period.
The number of protons increase
The number of protons stay the same The number of protons decrease
Answers
Answer:
A. The number of protons increase.
Explanation:
Each element rank is determined by the number of protons.
Hydrogen is #1 with 1 proton, Helium is #2 with 2 protons, Lithium is #3 with 3 protons, and so on.
many smoke detectors use the radioisotope americium-241. a stream of radiation flows between two electrodes. if smoke enters the smoke detector, it breaks the flow of electrons, and an alarm sounds. based on its application, would you expect the half-life of americium-241 to be relatively long (around 400 years) or relatively short (around 10 days)?
Answers
Based on its application in smoke detectors, we would expect the half-life of americium-241 to be relatively long, around 400 years.
The half-life of a radioactive isotope refers to the time it takes for half of the atoms in a sample to decay. In the case of smoke detectors, the americium-241 emits radiation in the form of alpha particles. This radiation is responsible for the flow of electrons between the two electrodes. When smoke enters the detector, it interrupts the flow of electrons, triggering the alarm.
For smoke detectors to be effective and reliable, the americium-241 source needs to remain active for an extended period. A long half-life allows for a consistent and stable source of radiation. If the half-life were relatively short, around 10 days, the source would quickly lose its radioactivity, rendering the smoke detector ineffective.
To know more about half-life visit:-
https://brainly.com/question/31666695
#SPJ11
First, once in the simulation, click on “solution values”. Move the blue levers (solute amount) and (solution volume) to the required amounts and find the molarity of the following:
1. Using Drink Mix mode:
a. What is the molarity when .772 moles are dissolved in .500 Liters of water?
b. What is the molarity when .453 moles are dissolved in .450 Liters of water?
Answers
The molarity when .772 moles are dissolved in .500 Liters of water is 0.0015M. The molarity when .453 moles are dissolved in .450 Liters of water is 0.001M.
What is molarity ?The term molarity is defined as the number of moles of solute dissolved in per litre of solution. The unit of molarity is mole, which is denoted by the symbol "M".
M = Number of moles of solute / litre in solution
1. Number of moles of solute = .772 moles
so, 0.772 / 500
= 0.0015 M
2. Number of moles of solute = .453 moles
so, .453 / 450
= 0.001 M
Thus, The molarity when .772 moles are dissolved in .500 Liters of water is 0.0015M. The molarity when .453 moles are dissolved in .450 Liters of water is 0.001M.
To learn more about the molarity, follow the link;
https://brainly.com/question/8732513
#SPJ1
according to Bohr atomic model
Answers
Answer:
A small positively charged nucleus surrounded by revolving negatively charged electrons in fixed orbits
A pharmaceutical company states in advertisements that their new ScarX Cream is guaranteed to erase scars in one month.
The company based their claims on a study done by the company's dermatologists.
The study showed that 84 percent of users said the sizes of their scars were reduced after using the product for 50 days. Do the study results support the company's claims?
Answers
Answer:d
Explanation:
the results indicated
Answer:
No, the results indicated that the scars were reduced, not erased.
Explanation:
beacuse i got it correct
Find the volume of 200g of benzene, if the density of benzene is 0.88 g/mL.
Answers
Answer:
227.27 mLExplanation:
The volume of a substance when given the density and mass can be found by using the formula
\(volume = \frac{mass}{density} \\\)
From the question we have
\(volume = \frac{200}{0.88} \\ = 227.2727...\)
We have the final answer as
227.27 mLHope this helps you
Determine the density of chunk of lead that has a mass of 1055 grams and a volume of 93.4 cm^3
Answers
\(\\ \tt\longmapsto Density=\dfrac{Mass}{Volume}\)
\(\\ \tt\longmapsto Density=\dfrac{1055}{93.4}\)
\(\\ \tt\longmapsto Density=11.29g/cm^3\)
The measure of how densely a material is packed together is called density. As the mass per unit volume, it has that definition. The density of a chunk of lead that has a mass of 1055 grams is 11.29 g/cm³.
The density of a substance indicates how dense it is in a given area. Mass per unit volume is the definition of a material's density. In essence, density is a measurement of how closely stuff is packed. It is a particular physical characteristic of a specific thing.
The expression used to calculate density is:
Density = Mass / Volume
mass = 1055 g
volume = 93.4 cm³
Density = 1055 / 93.4
Density = 11.29 g/cm³
To know more about density, visit;
https://brainly.com/question/31237897
#SPJ3
if i add 2.25 mol of x at 65.0 oc to water at 20.0 oc, and the final temperature rose to 27.5 oc, what was the mass of water?
Answers
The mass of water is approximately 76.0 g.
First, we need to calculate the heat transferred (q) from the reaction between 2.25 mol of X and water:
ΔHrxn = q / n
where ΔHrxn is the heat of reaction, q is the heat transferred, and n is the number of moles of X.
Assuming the reaction is endothermic (absorbs heat), ΔHrxn will be positive. We can use the following equation to calculate ΔHrxn:
ΔHrxn = (2.25 mol X) * ΔHf
where ΔHf is the molar heat of fusion of X.
Now, we can substitute the given values into the equation for q:
q = ΔHrxn = (2.25 mol X) * ΔHf
Next, we can use the equation for q to solve for the mass of water (m):
m = q / (c * ΔT)
where c is the specific heat capacity of water, which is 4.184 J/g-K.
Substituting the given values, we get:
m = (2.25 mol X * ΔHf) / (4.184 J/g-K * (27.5 - 20.0) K)
Simplifying and converting to grams:
m = 2.25 mol X * ΔHf / 29.568 J/g = 76.001 g.
Learn more about heat of reaction here:
https://brainly.com/question/30464598
#SPJ11
Sodium chloride is dissolved in water.
Which ions are present in the electrolyte?
Answers
Answer:
Na+
Cl-
H+
OH-
Explanation:
NaCl + H2O -----> Na+. Cl- + H+ OH-
Simple chemistry question please help. Look at image.
Answers
It's the last one. They all have the same number of electrons in their outer ring. They're also called valence electrons.
Hope this helped!