What property of water is responsible for water transports in plants?
A.moderation of temperature
B.insulation
C.its versatility as a solvent
D.cohesion
E. its role as a buffer
Answers
Answer:
Cohesion
Explanation:
D. you're welcome
One of water's most distinctive properties is cohesion—that is, the tendency of water molecules to "stick" to one another. In plants, this cohesion results in columns of water that stretch through the plant's xylem (the vascular tissue responsible for the transport of water), from the roots all the way to the leaves.
Related Questions
2. An archer shoots three arrows at a target and each land within 1 cm of the others but none of the arrows is within 30 cm of the bull's eye. Discuss both the accuracy and the precision of the archer.
Answers
Answer:
Accuracy refers to how close the arrows are to the bull's eye, while precision refers to how close the arrows are to each other.
In this scenario, the archer's shots are precise but not accurate. The arrows are all within 1 cm of each other, which shows that the archer's shots are consistent and repeatable, but none of the arrows are within 30 cm of the bull's eye. This means that the archer's shots are accurate to a certain extent, but not accurate enough to hit the bull's eye.
To improve the accuracy of the archer, he/she could practice aiming at the bull's eye, and focusing on form and technique. The archer could also get feedback from a coach or mentor to understand what might be causing the arrows to land away from the bull's eye.
On the other hand, the archer's precision is good, and this can be maintained by regular practice and fine-tuning the aim and form. The archer should aim to keep the consistency of the shots and keep the arrows close to each other.
1 valence electron, 4 energy levels
*
Answers
The majority of valence electrons are negatively charged particles, and they are all grouped in various orbitals or shells. Additionally, these electrons are in charge of how atoms interact with one another and create chemical bonds.
An element is defined as the pure substance which consists of only one type of atom which all have the same numbers of protons in their nuclei. Elements are the simplest chemical forms which cannot be broken down through chemical reactions.
Here the element potassium has the atomic number 19 and its electronic configuration is 2, 8, 8, 1. It contains the four energy levels, they are 'K', 'L', 'M' and 'N'. The number of valence electrons in potassium is 1.
To know more about Potassium, visit;
https://brainly.com/question/4455382
#SPJ1
Your question is incomplete, most probably your full question was:
Which element has 1 valence electron and 4 energy levels?
Suppose you have 56. 8 g of sulfur (S), how many moles of sulfur do you have? (4 points)
Answers
If you have 56. 8 g of sulfur (S), then probably you have approximately 1.772 moles of sulfur.
To determine the number of moles of sulfur (S) from the given mass, first of all you need to divide the given mass by the molar mass of sulfur.
The molar mass of sulfur (S) is approximately 32.06 g/mol.
Using the given mass of sulfur:
Moles of sulfur (S) = Mass of sulfur / Molar mass of sulfur
Moles of sulfur (S) = 56.8 g / 32.06 g/mol
Moles of sulfur (S) ≈ 1.772 mol
Therefore, you have approximately 1.772 moles of sulfur.
Learn more about Molar mass from the link given below.
https://brainly.com/question/31545539
#SPJ4
what is a mixture of elements and compounds
Answers
The substance in the image above would be classified as a mixture of elements (option E).
What is a compound and mixture?A compound is a substance formed by chemical bonding of two or more elements in definite proportions by weight.
On the other hand, a mixture is made when two or more substances are combined, but they are not combined chemically.
According to this question, an image is shown with two different substances or elements as distinguished by coloration (white and purple). These elements are combined but not chemically bonded, hence, is a mixture.
Learn more about mixture at: https://brainly.com/question/12160179
#SPJ1
Help me and thanks YESSIR :) 10 points :)
Answers
Answer:
pen??????l think l m not sure
When a catalyst is added to a reversible reaction in equilibrium state the value of equilibrium constant
Answers
Explanation:
The value of equilibrium constant doesn't change when a catalyst is added.
Equilibrium constant depends on Concentration of reactants , Pressure and Temperature.
A suitable catalyst can improve the reaction rate. A catalyst is a material that increases the rate of a chemical reaction, but in the end, it remains unchanged chemically. It offers a lower energy alternative reaction path.
The balance of forwarding and reverse reaction rates is equal for a reversible reaction. In the presence of a catalyst, both reaction rates accelerate and expect the users to weigh more quickly.It is important to remember that adding a catalyst has no impact at all on the final balance of said reaction, which is faster.Learn more:
brainly.com/question/14784580
4NH3(g) + 6NO(g)→5N2(g) + 6H2O(g) Using the balanced equation calculate the mass of N2 produced from 100 grams of NH3 racing with an unlimited supply of NO.
Answers
Here's link to the answer:
bit.\(^{}\)ly/3a8Nt8n
Which type of change results in the formation of
a new substance?
Enter the answer
Check it
Answers
Answer:
Chemical change
Explanation:
To ___ is to make a statement that a product is or does more than is actually true.
Answers
Answer:
exaggerate
Explanation:
There are many possible verbs for this. I suggest exaggerate, but one many also consider:
"make a false claim"
"misrepresent"
The________ isotopes in the hard skeletons of corals are an important paleothermometer.
Answers
The stable isotopes of oxygen (O) in the hard skeletons of corals are an important paleothermometer.
Isotopes of an element have the same number of protons but differ in the number of neutrons. In the case of oxygen, the most abundant isotope is oxygen-16 (16O), which has 8 protons and 8 neutrons. However, there are also two less common isotopes: oxygen-17 (17O) with 8 protons and 9 neutrons, and oxygen-18 (18O) with 8 protons and 10 neutrons. The ratio of oxygen-18 to oxygen-16 in the skeletal structures of corals can provide valuable information about past ocean temperatures. This is because the incorporation of oxygen isotopes into the coral skeleton is influenced by the temperature of the surrounding seawater. When the seawater is warmer, corals tend to incorporate more oxygen-18 isotopes into their skeletons. Conversely, during colder periods, they incorporate more oxygen-16 isotopes. By analyzing the ratio of oxygen-18 to oxygen-16 in fossilized coral skeletons, scientists can estimate the temperature of the ocean at the time the coral was alive.
For more questions on isotopes
https://brainly.com/question/14220416
#SPJ8
the mass of an object in a given space is known as its
Answers
The mass of an object in a given space is known as its relativistic mass.
The system's mass as it will be determined by a scale just might be the relativistic mass, however, in some instances (such as the box above), this fact only holds true since this system must typically be at rest in order to be measured .
For instance, if an electron in such a cyclotron is traveling in circles at a relativistic velocity, its relativistic mass rather than its rest mass increases the mass of the cyclotron and electron system.
Therefore, The mass of an object in a given space is known as its relativistic mass.
To know more about mass.
https://brainly.com/question/28217622
#SPJ1
What is the solution to the problem of the sinking buildings?
Answers
Answer:
1. Sustainable water management
Growing populations living better lives in rapidly expanding cities require great amounts of water for domestic and industrial use. A trend which is not set to stop; by 2050, global water demand is expected to increase by 55 per cent while, at the same time, water stress will affect half of the world's population.
To prevent water shortage, sustainable water management is crucial. Most importantly in terms of land subsidence, we must find new ways to supply our cities with water than continue the excessive extraction of groundwater. Purifying surface waters or desalinating seawater can be answers. However, that requires large amounts of renewable energy to be fully sustainable.
An example of visionary, urban water management is the town of Nye, which among other solutions collects all rainwater to supply toilet and washing machines with secondary water. Potentially housing 15.000 inhabitants, the solution saves drinking water resources of around 30 million litres annually.
2. Restoring water ecosystems in cities
While reducing groundwater extraction, what is just as important is to build up groundwater tables. To stay with the mattress metaphor: To keep it from sinking, the leaking mattress must get refilled with water to prevent compression.
But what characterizes most cities today is the presence of bricks and concrete rather than parks and rivers, challenging the natural recharge of groundwater basins. Solutions can be permeable asphalt and soakaways, which ensure that rainfall does not end up in a city's sewage system but instead infiltrates into the ground. Also, bringing back existing watercourses and green spaces can contribute to re-establishing water ecosystems in cities.
Artificial recharge, which happens by injecting treated wastewater into the underground, can also be a way to compensate for extracted water resources. Doing so requires in-depth knowledge of soil conditions, the geochemistry of aquifers and water pressure in order not to cause further instabilities in the ground.
In Chesapeake Bay, Virginia, USA, such a project is currently taking place. To slow down land subsidence, the goal is to inject a total of 120 million gallons of wastewater per day by 2030, making it the largest groundwater recharge effort in the USA .
3. 'Waterproof' urban planning
Finally, we must consider how to construct our cities to prevent them from sinking and cope with incoming waters. Protecting shorelines of coastal sinking cities is crucial to preventing the sea from taking over. Building on stilts is another way to prepare for changing water levels. And compensated foundations can reduce the stress on a city's surface, which otherwise is a consequence of heavy loading.
We can also plan and design our cities with infrastructure made for solving problems of incoming water. An example of such is tunnels with dual purposes; beside being an efficient traffic solution, they can, in times of flooding, capture enormous amounts of water for subsequent infiltration.
Recreational areas can be designed to have the same dual function. In Bangkok, the Centennial Park was established to protect the sinking city from flooding during heavy rainfalls. With artificial wetlands and a water tank below, the park can store up to 4,564 cubic metres of water .
Last but not least, some researchers believe that it is time to stop 'fighting' and instead 'cooperate' with the ocean. One way of doing so is to build floating cities fully adaptable to changing water levels.
In many ways, we are at a crossroads when it comes to sinking cities, as is the case for overall handling of climate change. It is last call if we want to turn the tide and do something about sinking cities to avoid unrest and turmoil following the laissez-faire attitude taken so far.
Explanation:
Hey I Hope This Help Is This From An Article??
a) Free-radical polymerization of 2-chloro-1,3-butadiene would produce what polymers? Draw the general structure of the polymersb) How would you synthesis compound S from the starting material shown below? show retrosynthesisc)Show how you would synthesis the product on the right from all the starting materials on the left and other reagents of your choice
Answers
a) Free-radical polymerization of 2-chloro-1,3-butadiene would produce a polymer consisting of repeating units of 2-chloro-1,3-butadiene. The general structure of the polymer would be:
Cl
|
CH2 - CH = CH - CH2 - Cl
| |
Cl Cl
This polymer is known as poly(2-chlorobutadiene).
b)
The retrosynthesis of compound S is as follows:
Br Br
| |
| |
H2C = CH - CH2 - CH2 - C - CH = CH
| |
| |
Cl Cl
Starting material: 1,4-dibromo-2-butene
Step 1: Dehalogenation of 1,4-dibromo-2-butene using zinc dust and acetic acid to give 1,4-butadiene.
Br Br
| |
| |
H2C = CH - CH = CH - CH = CH2
| |
| |
Br Br
Step 2: Reaction of 1,4-butadiene with hydrogen chloride in the presence of benzoyl peroxide as a free radical initiator to give compound S.
H2C = CH - CH2 - CH2 - C - CH = CH
| |
| |
Cl Cl
Note: The reaction of 1,4-butadiene with HCl in the presence of a free radical initiator is an example of free-radical addition reaction.
c) The synthesis of the product on the right from all the starting materials on the left can be accomplished through the following steps:
Step 1: Bromination of ethylbenzene using N-bromosuccinimide (NBS) in the presence of light or heat to give 1-bromo-2-phenylethane.
H
|
CH3
|
C6H5
|
Br --- CH2 --- CH3
Step 2: Conversion of 1-bromo-2-phenylethane to 1-phenylethanol using lithium aluminum hydride (LiAlH4) reduction.
H
|
CH3
|
C6H5
|
OH --- CH2 --- CH3
Step 3: Reaction of 1-phenylethanol with thionyl chloride (SOCl2) to give 1-chloro-1-phenylethane.
H
|
CH3
|
C6H5
|
Cl --- CH2 --- CH3
Step 4: Reaction of 1-chloro-1-phenylethane with sodium iodide (NaI) in acetone to give 1-iodo-1-phenylethane through the Finkelstein reaction.
H
|
CH3
|
C6H5
|
I --- CH2 --- CH3
Step 5: Conversion of 1-iodo-1-phenylethane to phenylethene (styrene) using potassium tert-butoxide (KOtBu) in dimethylformamide (DMF) through the dehydrohalogenation reaction.
H
|
CH3
|
C6H5
|
CH = CH2
Overall, the reaction sequence can be represented as:
H
|
CH3 H
| |
C6H5 CH
Learn more about polymerization here:
https://brainly.com/question/27354910
#SPJ11
what is the average atomic mass, in amu, of a large sample of palomarium? (reminder: atomic masses of each isotope and their percent abundances are given in the student handout)
Answers
The average atomic mass in amu of a large sample of the isotope Palomarium- 46:46.00159 amu
What is the average atomic mass?The weighted average mass of the atoms in a naturally occurring sample of an element is the average atomic mass, also known as atomic weight.
Unified atomic mass units are typically used to express average masses (u).
Let
46Palomarium = 46.00159 = x%
48Palomarium = 47.98621 = 1-x%
⇒ 46.9939 = (46.00159)x + (47.98621) (1-x)
⇒ 46.9939 = -1.98462x + 47.98621
⇒-0.99231 = -1.98462x
⇒ x = 0.50 = 5.%
and 1-x = 1-0.50 = 50%
avg atomic mass = 46.00159 (0.5) + (47.98621) (0.5)
= 46.9939 amu
To know more about atomic masses, visit:
https://brainly.com/question/17067547
#SPJ4
Distinguish between an acidic and a basic oxide.
(Select all that apply.)
A basic oxide is an oxide that reacts with acids.
An acidic oxide is an oxide that reacts with acids.
In a basic oxide, element forms covalent bonds with oxygen.
In an acidic oxide, element forms ionic bonds with oxygen.
In an acidic oxide, element forms covalent bonds with oxygen.
In a basic oxide, element forms ionic bonds with oxygen.
An acidic oxide is an oxide that reacts with bases.
A basic oxide is an oxide that reacts with bases.
Answers
Answer:
an acidic oxide reacts with bases and the seconf
16. What are the two types of mixtures?
Answers
Heterogeneous and homogeneous mixtures are the two types of mixtures.
How to define the heterogeneous and homogeneous mixtures?When compared to homogeneous mixtures, heterogeneous mixtures can be visually divided into individual components. The most prevalent kind of homogeneous mixture is a solution, which can be a solid, liquid, or gas.
Solid, liquid, or gaseous homogeneous mixtures can exist. They are uniform in both appearance and chemical make-up. Water, air, steel, detergent, saltwater mixture, and other substances are examples of homogeneous mixtures. When two or more metals are combined in a specified proportion, an alloy is created.
A combination is said to be heterogeneous if its composition is not constant throughout. Vegetable soup is a complex concoction.
Know more about the mixtures at:
https://brainly.com/question/15304648
#SPJ1
Make a claim about whether air is matter and whether light is matter. Support your claims with evidence and explain your reasoning.
Answers
Answer: air is matter, it has mass and it takes up space
to what temperature (in kelvin) must a balloon, initially at 298 k and 2.00 l, be heated in order to have a volume of 3.58 l?
Answers
A balloon must be temperature to T=533K from its initial 298 K & 2.00 L volume in it to have a 3.58 L volume.
Short answer: What is temperature?Temperature is a unit used to represent hotness or coolness on any of a number of scales, including Celsius and Celsius. Temperature determines the direction—away from a hotter body—in which thermal energy will spontaneously travel.
What does Example's temperature mean?The total kinetic energy with one molecule or atom is only revealed by the measurement of temperature. As a result, when we use the terms hot or cold to describe something, we are usually referring to something else.
Briefing:According to Charles' law, we have:
V2/T2=V1/T1
T2=V2/V1*T1
=3.58/2.00*298K
=533K
To know more about temperature visit:
https://brainly.com/question/13294753
#SPJ4
A scientist is studying the liquid shown here. She thinks the liquid is a mixture. Describe an investigation she could do to demonstrate that the liquid is in fact a combination of substances.
( please help it’s due today lol! i will mark your answer as brainliest or whatever .)
Answers
Answer: Measure the density
Explanation: pretty sure the density could identify if it is a mixture or a pure substance
Which has the largest atomic radius: magnesium (mg), silicon (si), sulfur (s), or sodium (na)? the smallest?.
Answers
Sodium is the element with the largest atomic radius compared to magnesium, silicon, and sulfur, while the smallest among these is sulfur.
Atomic radius of the indicated elementsMagnesium (Mg) 173 pmSilicon (Yes) 111 pmSulfur (S) 100 pmSodium (Na) 227 pmImportance of atomic radiusIdentifies the average distance between two nuclei of the same element linked together.This distance is measured in amstrong and pm, where 1 amstrong equals 100 pm.Through the atomic radius it is possible to determine the size of the atom, and as the energy level is higher, the atomic radius is greater.Learn more about atomic radius at https://brainly.com/question/13607061
#SPJ4
Which type of plant would
MOST LIKELY have a taproot?
a
A. Monocot
B. Dicot
C. Cotyledon
D. Branched
Answers
Answer:
B
Explanation:
Dicots have a tap root system, while monocots have a fibrous root system and cotyledon produce taproots and Branched have taproot system for short time.
I hope it helps.
What would happen to the density of an object if the volume increases but the mass stays the same
Answers
decrease
Explanation:
We all know, Density = Mass/ volume. When volume increases and the mass remains the same , the density will decrease considerably
Answer:
The density decreases.
Explanation:
Think of a balloon. It is tied up. It has air inside. If you heat the balloon up, it expands but the amount of air inside the balloon stays the same. Therefore, there is less air per cubic millimetre, making it less dense.
Which word or phrase least applies to the quantum number represented by the symbol n?.
Answers
New question, please helppp
In the last activity, you figured out that the evaporator and the condenser both worked by transferring thermal energy from one substance to another. However, you also noticed that the compressor did not function that way since it was not designed to transfer thermal energy to or from the refrigerant. However, you did notice that the compressor increased the pressure of the refrigerant. Could this increase in pressure be related to the increase in temperature?
Answers
Answer:
Yes, the increase in pressure of the refrigerant can be related to the increase in temperature. This is because when a gas is compressed, the molecules are forced closer together, which increases the temperature of the gas. This is known as the ideal gas law, which states that when pressure increases, temperature also increases.
What do half-reactions show?
O
A. They show the oxidatign and reduction halves of a reaction.
B. They show only the electrons that are transferred in a reaction.
C. They show the reactant half and the product half of a reaction.
D. They show the ionic equation and the spectator ions of a reaction.
Answers
Answer: A. They show the oxidation and reduction halves of a reaction.
Explanation:
Oxidation-reduction reaction or redox reaction is defined as the reaction in which oxidation and reduction reactions occur simultaneously.
For a redox reaction: \(A+B^+\rightarrow A^++B\)
Oxidation reaction is defined as the reaction in which a substance looses its electrons. The oxidation state of the substance increases.
oxidation half at anode : \(A\rightarrow A^++e^-\)
Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.
reduction half at cathode: \(B^++e^-\rightarrow B\)
Half-reactions show the oxidation and reduction halves of a reaction. The correct answer is option A.
Oxidation is a chemical reaction that involves the loss of electrons by a molecule, atom, or ion. This process results in an increase in the oxidation state of the species undergoing oxidation.
Half-reactions are used to show the oxidation and reduction half of the reaction separately, which makes it easier to balance the overall reaction and to identify the species that are being oxidized and reduced.
In a half-reaction, the species that is being oxidized loses electrons and is called the reducing agent, while the species that is being reduced gains electrons and is called the oxidizing agent. By balancing the number of electrons transferred in each half-reaction, it is possible to balance the overall redox reaction.In conclusion, half-reactions are used to show the oxidation and reduction halves of a redox reaction separately. Option A is the correct answer.
Learn more about oxidation here:
https://brainly.com/question/13182308
#SPJ6
A truck can carry a maximum load of 8000 kg.
The truck is loaded with packages each with a mass of 35 kg
correct to two significant figures.
Calculate the maximum number of packages
that the truck can carry.
did any one tell me the answer it's from lower and upper bound chapter
Answers
8000 / 35 = 228.57 —> You want to round down in this context, because 229 packages would exceed the weight limit.
Water has a ""bent"" geometry. Which properties of water create this molecular shape? Water’s oxygen has no lone electron pairs. Water’s oxygen has lone electron pairs that repel each other. Water is nonpolar. Water is ionic.
Answers
Answer:
Water oxygen has lone electron pairs that repel each other.
Explanation:
Water has a "bent" geometry because water’s oxygen has lone electron pairs that repel each other.
What is lone pair of electrons?A pair of valency electrons of opposite spin that are not shared between the atoms in a molecule and are responsible for the formation of coordinate bonds.
A water molecule consists of two hydrogen atoms bonded to an oxygen atom, and its overall structure is bent.
This is because the oxygen atom, in addition to forming bonds with the hydrogen atoms, also carries two pairs of unshared electrons.
All of the electron pairs—shared and unshared—repel each other.
Hence, option B is correct.
Learn more about lone pair of electrons here:
https://brainly.com/question/26723528
#SPJ2
(C) The silver carp is another species native to Asia that was introduced to aquaculture operations and sewage treatment ponds in the Mississippi River valley to control excess algae
accumulation. The species escaped from these operations into the Mississippi River and its tributaries and has the potential to invade the Great Lakes. Scientists are concerned that this
species is having severe negative impacts on these areas.
() Propose a potential solution, other than physically removing the carp from the rivers, to manage the problem of the invasive silver carp in the United States.
Answers
Answer:
Introducing predator of silver carp or an invasive species that can feed upon silver carp
Explanation:
The solution is attached
which example has particles that can be drawn closer to occupy smaller volume
Answers
One example of particles that can be drawn closer to occupy a smaller volume is a gas.
Understanding Gaseous StateIn the gaseous state, particles have high kinetic energy and are not strongly attracted to each other. They move freely and randomly, colliding with each other and the container walls.
Since there are minimal intermolecular forces holding them together, gas particles can be compressed or drawn closer together by reducing the volume of the container.
By decreasing the volume of a gas, such as by compressing it in a cylinder or container, the particles have less space to move around. They collide with each other more frequently, increasing the frequency of intermolecular collisions. As a result, the gas particles are drawn closer together, and the overall volume occupied by the gas decreases.
Learn more about gaseous substance here:
https://brainly.com/question/30482059
#SPJ1
If Beryllium were to lose a proton, it would become a(n)
Answers
Answer:
an anion
Explanation:
since it lost a proton..it now has 3 protons and four electrons and possesses a minus charge since it is no longer neutrally charged..this minus charge makes it an anion