Scientists classify the parts of a phospholipid molecule according to their chemical properties. What are these parts? an acidic head and basic tails hydrophilic tails and a hydrophobic head a hydrophilic head and hydrophobic tails acidic tails and a basic head
Answers
Answer: hydrophilic head and hydrophobic tails
Explanation:
A phospholipid consists of glycerol molecule, 2 fatty acids, and 1 phosphate group that is replaced by alcohol. In the phosphate group the polar head is negatively charged and hydrophilic in nature, whereas the fatty acid chain is nonpolar tails, that are hydrophobic. The tails are hydrophobic which face the inside and away from water.
Answer:
hydrophilic head and hydrophobic tails
Related Questions
What is the role of a generator in producing electricity?
Answers
Answer:
The generator stores electrical energy
Explanation:
The generator stores electrical energy for later use in homes and businesses. The generator transforms the mechanical energy of the turbine into electrical energy. The generator reverses the turbine to create electrical energy. The generator spins the turbine to create mechanical energy.25 May 2017
What is the name given to this group of elements?
a.
halogens
c.
transition metals
b.
alkali metals
d.
noble gases
Answers
Answer: The answer is A. Halogens
Explanation:
I hope this helps you :)
When the speed of the bottle is 2 m/s, the KE is kg m2/s2. When the speed of the bottle is 3 m/s, the KE is kg m2/s2. When the speed of the bottle is 4 m/s, the KE is kg m2/s2. When the speed of the bottle is 5 m/s, the KE is kg m2/s2. When the speed of the bottle is 6 m/s, the KE is kg m2/s2.
instructions
In this part of the experiment, you will be changing the speed of the bottle by dropping it from different heights. You will use the same mass, 0.250 kg, for each trial, so record this mass in Table B for each velocity. Then, calculate the expected kinetic energy (KE) at each velocity. Use the formula KE = mv2,
where m is the mass and v is the speed. Record your calculations in Table B of your Student Guide.
Answers
Answer:
Based on the given instructions, you need to calculate the expected kinetic energy (KE) at each velocity using the formula KE = mv^2, where m is the mass and v is the speed. The mass is given as 0.250 kg.
Table B: Calculation of Kinetic Energy (KE)
Table B: Calculation of Kinetic Energy (KE)
Speed (m/s)Mass (kg)KE (kg m^2/s^2)20.2500.50030.2500.75040.2501.00050.2501.25060.2501.500
To calculate the kinetic energy at each velocity, multiply the mass (0.250 kg) by the square of the velocity.
For example, when the speed of the bottle is 2 m/s: KE = (0.250 kg) * (2 m/s)^2 = 0.250 kg * 4 m^2/s^2 = 1.000 kg m^2/s^2
Perform similar calculations for the other velocities and record the results in Table B.
Answer:
Explanation:mass of the bottle in each case is M = 0.250 kg
now as per given speeds we can use the formula of kinetic energy to find it
1) when speed is 2 m/s
kinetic energy is given as
2) when speed is 3 m/s
kinetic energy is given as
3) when speed is 4 m/s
kinetic energy is given as
4) when speed is 5 m/s
kinetic energy is given as
5) when speed is 6 m/s
kinetic energy is given as
The lithosphere is a rigid layer made of Earth's entire crust and the very top part of Earth's mantle. This rigid layer is divided into several large pieces, or plates. The lithospheric plates float on top of the _______, which is a weak part of the mantle that flows slowly.
A.
asthenosphere
B.
outer core
C.
hydrosphere
D.
inner core
Answers
what type of events might cause many organisms to die in the same area
Answers
Answer: Well first lets define "extinction event" which is a widespread and rapid decrease in biodiversity on Earth. Events that cause this is recognized by a intense change in the unlikeness of multicellular organisms. So basically it takes place when the rate of extinction increases with regard to the rate of speciation.
Explanation:
When life forms have limited geographical range, they are more likely to become extinct because many individuals may encounter chance events that harm the population, such as droughts, floods, the negative effects of invasive species, or rainforest deforestation.
What is an biodiversity?Biodiversity refers to the variety of life forms found in one area, including animals, plants, fungi, and even microorganisms such as bacteria. In ecosystems, all of these species and organisms coexist.
Biodiversity refers to the natural world around us and the variety of organisms such as plants, animals, insects, and microorganisms that live on our planet.
Every one of these exists in delicate balance and lives and works together in ecosystems to sustain and support life on Earth.
Because many individuals may actually meet chance events that harm population, such as droughts, floods, detrimental consequences of invasive species, or rainforest deforestation, life forms with limited geographical range are more likely to become extinct.
Thus, these are some of the events that might cause many organisms to die in the same area.
For more details regarding biodiversity, visit:
https://brainly.com/question/13073382
#SPJ2
Which simple machines make up scissors?
A) one lever and one wedge
B) two levers and two wedges
C) one inclined plane and two pulleys
D) two inclined planes and two levers
Answers
Which process is an example of a chemical change?
A. Salt mixes with water and dissolves.
B. An aspirin tablet is crushed into a fine powder.
C. Water droplets form on the outside of a cold drink glass.
D. An antacid tablet is added to water and bubbles are produced.
Answers
Where is the DNA stored in a cell?
Answers
Answer: nucleus
Explanation:
Pls help!!! ILL GIVE BRAINLIEST, 70 points + 10 more if not plagiarized ty ty (also for those who scam and do it for the points will be reported)
Answers
Answer:Pls help!!! ILL GIVE BRAINLIEST, 70 points + 10 more if not plagiarized ty ty (also for those who scam and do it for the points will be reported)
Explanation:
A student predicts that a solution of ethanol (C2H5OH) and water will have a lower density at room temperature than that of pure water. Which tools would most help the student test this prediction?
Will give brainly
Answers
A student predicts that a solution of ethanol (C2H5OH) and water will have a lower density at room temperature than that of pure water. By taking moisture the student can test this prediction.
What are the properties of ethanol ?Ethanol is a natural plant fermented by-product which can also be produced by the process of hydration of ethylene.
It is an important industrial reagent, can be used as a solvent, for the synthesis of solvent, organic chemicals and some additive to automotive gasoline.
Its chemical formula is C2H6O, two carbon atoms and one oxygen atom where as the structural formula is C2H5OH indicating that the two-carbon chain has a hydroxyl group.
Ethanol is always a liquid at room temperature and has the melting point of 156K and a boiling point of 351 K.
It is used in making many medicines like cough syrups, tonics, any proportion of ethanol is soluble in water.
Direct consumption of even a small quantity of pure ethanol is lethal to body.
Learn more about ethanol, here:
https://brainly.com/question/18763189
#SPJ2
what is the awnser??? (pic is below)
Answers
Answer:
C: Radiation. Arrow x shows radiation. I hope this helps u! If it's wrong, please let me know!!
What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
Oil is a powerful source of energy used for cars, machines, and many other purposes. While studying sources of energy that could replace the use of oil, a student thinks about solar power, wind power, nuclear power, and electric batteries. The students asks,"Which type of source will waste the least energy and provide the most energy in all situations?"
Which best describes why a scientist would ask a different question than this one?
O The question asks about subjective personal preferences regarding energy.
O The question focuses on the objective measurements of amounts of energy.
O The question has too wide of a focus, as though all situations can be studied at once.
O The question is focused on the future and finding new answers about changing needs.
Answers
Answer:
C
Explanation:
scientists usually focus on one specific problem, rather than a whole range. so the answer would be that it's too wide a focus.
btw this is where the crown is on the bottom of the question
Answer:
c
Explanation:
How to work out the relative mass of potassium? What is the calculation? ( explained very easily )
Answers
Answer:
39
Explanation:
Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.
———————————
(1/12)th Mass of one C12 atom
One scientist discovered an accurate way to measure the temperature of planets. When would the scientist's discovery most likely develop into a theory? (2 points) when the discovery is demonstrated to others when no other scientist is able to get results of the same accuracy when the results are published in a newspaper when the scientific community retests and accepts the results
Answers
Answer:
When the scientific community retest and accepts the results
Explanation:
Mark me brainlist pls
Write a paragraph about the each classification characteristic and how to tell the difference.
Answers
Answer:
Square, quadrilateral, rectangle, and a parallelogram
Explanation:
A square has 4 right angles, and 4 parallel sides.
A quadrilateral has 4 sides, and anything with 4 sides is that. A square, rectangle, and a parallelogram qualify as a quadrilateral.
A rectangle has 4 right angle, and 2 pairs of parallel sides. A square is a special type of rectangle.
A parallelogram has only 2 parallel sides, and the angle doesn't matter.
Hope this helps! :)
What qualifies as a quadrilateral,Rectangle4 sided shapesparallelogramsquareWhat qualifies as a rectangleSquareWhat qualifies as a parallelogramA shape with 2 pairs of parallel sides\(\left \{ {{Parallelogram:} \atop {Rectangle}} \right.\)
Auditory communication is____________________________________.
a
the sound an animal makes
b
the volume of an animal's voice
c
none of the above
Question 2 (10 points)
Male American alligators use auditory communication to get the attention of females when they are ready to mate.
True
False
Question 3 (10 points)
Coyotes use auditory communication to ___________________________. (Check all that apply)
a
show they hungry
b
mark their territory
c
let other coyotes know their location
d
all of the above
Question 4 (10 points)
A loon my demonstrate visual communication by running acrose the water and flapping its wings to__________________________________
____________________.
a
attract a female loon
b
defend its territory
c
all of the above
d
none of the above
Question 5 (10 points)
A red squirrell uses auditory communication to warn of intruders by______.
a
roaring and slapping its head
b
barking, yipping, and howling
c
rattling and yipping
d
none of the above
Question 6 (10 points)
Dolphins use auditory communication through a sound that they use to identify themselves.
Blank 1:
Question 7 (10 points)
Dolphins have an adaption, or structure, called in their foreheads which allow them to make a clicking sound that travel through water.
Blank 1:
Answers
2. True
3. D
4. B
5. True
2. True
3. D
4. B
5. True
Choose the most correct statement about metals
A. Metals have atoms, meaning they can be pulled into wires
B. Metals are reflective, meaning they can be pulled into wires
C. Metals are ductile, meaning they can be pulled into wires
D. Metals have luster, meaning they can be pulled into wires
Please help i've been struggling on this for a while
Answers
Answer:
C. Metals are ductile, meaning they can be pulled into wires
Can some one help? And also explain it? The question is how titan in Saturn evaporated I’m just confused by this question I just don’t know what to write as a response…. Help?!?
Answers
The process of how Titan's atmosphere evaporated is an interesting one. Titan is the largest moon of Saturn and has a thick atmosphere primarily composed of nitrogen, similar to Earth's atmosphere. The evaporation of Titan's atmosphere is related to its surface temperature, atmospheric pressure, and the composition of its atmosphere.
Here's a simplified explanation of how Titan's atmosphere can evaporate:
1. Surface Temperature: Titan is a very cold moon with surface temperatures averaging around -290 degrees Fahrenheit (-179 degrees Celsius). At such low temperatures, some of the gases in the atmosphere, like methane and ethane, exist in liquid form on the surface.
2. Atmospheric Pressure: Despite being cold, Titan's atmosphere is relatively dense, with a surface pressure about 50% higher than Earth's. This atmospheric pressure helps keep the gases in the atmosphere from escaping into space easily.
3. Evaporation: Even at such low temperatures, some of the liquid hydrocarbons on Titan's surface can evaporate and become gases in the atmosphere. This process is similar to how water evaporates from Earth's oceans and lakes, despite not reaching boiling temperatures.
4. Condensation: Conversely, when the gases in Titan's atmosphere lose energy, they can condense and return to the surface as liquid. This is similar to how water vapor in Earth's atmosphere condenses to form clouds and eventually falls as rain.
Overall, the balance between evaporation and condensation in Titan's atmosphere is influenced by its temperature, atmospheric pressure, and the composition of its atmosphere. The low temperatures and high atmospheric pressure allow for the existence of liquid hydrocarbons on the surface and their occasional evaporation into the atmosphere.
I hope this explanation helps you understand how Titan's atmosphere can evaporate despite being a cold moon. If you have any further questions or need more clarification, feel free to ask!
pls help me no links
Answers
Answer:
mixture
Explanation:
What are the 4 main types of chemical reactions examples of each
Answers
Synthesis reactions.
Decomposition reactions.
Single-replacement reactions.
Double-replacement reactions
Explanation:
Answer:Type of Reaction General Reaction
Synthesis or Combination A + B → AB
Decomposition or Analysis AB → A + B
Displacement, Replacement, or Substitution A + BC → AC + B
Double displacement, Double replacement, or Metathesis AB + CD → AD + CB
please answer this in a hurry will give 10 pts
due tommorow
Answers
Can somebody help me with my science HW
Answers
2. C
3. C
4. B
5. C
What are the products of photosynthesis?
water and oxygen
glucose and oxygen
oxygen and water
carbon dioxide and water
Answers
Answer:
oxygen and glucose.
Explanation:
i just know
help
Nicole has 2 glasses on the counter: one of water and one of sugar-water. She is baking a cake and needs to use the sugar-water for the glaze. Both glasses look identical, but one contains a mixture and the other contains a compound.
Is sugar-water a mixture or a compound? Define mixtures and compounds, and explain how, without tasting it, Nicole can test to make sure she is using the sugar-water in the glaze.
Answers
Answer:
sugar-water is a mixture not a compound.(homogeneous mixture.)
Explanation:
Compounds are substances formed by the chemical combination of two or more elements. Mixtures are substances formed by physically mixing two or more substances together.
The solution of sugar in water is considered a mixture not a compound because the particles of sugar and water are not completely dissolve nor mixed in a fixed proportion or ratio. hope this helped :)
Answer: Nicole can take a small amount of sample from both of the glasses, she can place the samples in two separate containers and leave them out in the sun, so that the water gets evaporated. One of the two containers will contain a residue of sugar. The one containing the sugar residue, is the sugar-water solution.
can someone help me with it
Answers
Answer:
wind is free fuel and government taxes on its uses are lower than those on fossil fuel use
What's the difference between evaporation and distillation with an example.?
Answers
Answer:
The main difference between evaporation and distillation is that evaporation is a process that involves a change in the state of matter while distillation is a process of separation. While the vaporization in evaporation occurs below the boiling point, the vaporization in distillation occurs at the boiling point.
Explanation:
Evaporation might occur when the sun heats up a puddle, and the water gets evaporated into the air. Distillation is a process used to purify water, and requires water to be boiled by a stove or fire.
Ocean currents - Surface ocean currents can occur on local and global scales and are typically wind-driven, resulting in both horizontal and vertical water movement. Deep ocean currents are density-driven and differ from surface currents in scale, speed, and energy. Water density is affected by the temperature, salinity (saltiness), and depth of the water. The colder and saltier the ocean water, the denser it is. The greater the density differences between different layers in the water column, the greater the mixing and circulation. Density differences in ocean water contribute to a global-scale circulation system, also called the global conveyor belt. The global conveyor belt includes both surface and deep ocean currents that circulate the globe in a 1,000-year cycle. The ocean’s global conveyor belt plays a key role in distributing heat energy and regulating weather and climate. The driving force behind this circulation system is
All
NewsImagesShoppingMapsMore
Settings
Tools
About 1,320,000 results (1.58 seconds)
"is" (and any subsequent words) was ignored because we limit queries to 32 words.
Surface ocean currents can occur on local and global scales and are typically wind-driven, resulting in both horizontal and vertical water movement. ... Water density is affected by the temperature, salinity (saltiness), and depth of the water. The colder and saltier the ocean water, the denser it is.Mar 21, 2013
A. Earth's orbital distances around the Sun throughout the year
B. differences in the heat energy balance at different latitudes on Earth
C. convections cells throughout the oceans that are the result of the Coriolis effect
D. the circulation of air in the troposphere due to differences in incoming solar radiation
science not chemisty
Answers
Answer:
d
Explanation:
The sirculation of airin the troposhere du
help me with this I only have one more
1156 g/L
= ________ kg/mL
Answers
The Answer is 0.001156.
1156 g/L = 1.156 kg/L
Since 1 L is equal to 1000 mL, we can convert kg/L to kg/mL by dividing by 1000:
1.156 kg/L = 1.156/1000 kg/mL
1.156/1000 kg/mL = 0.001156 kg/mL
Therefore, 1156 g/L is equal to 0.001156 kg/mL.
Which unit of geologic time is the longest?
A. period
B. epoch
C. eon
D. era
Answers
Eons! Hope this helps for you and have a good day!!