Answers
Answer:question 3:(W)
question 4:(c)
Source:trust me bro
4:c for they are 3 carbons in the diagram and 8 hydrogens making it a hydrocarbon C3H8
Related Questions
Can someone please answer these 2 for me :)) I WILL GIVE BRAINLISTTTTT
Answers
gold is the piece of metal which have larger mass.
Explanation:
because it is reactive in nature than copper
Because gold has a greater density than copper therefore 1 cm3 of gold is equal to a mass of 19.3 g while 1 cm3 of copper is 8.9 g
Compare the chemical reaction that causes the Statue of Liberty to look green with the chemical reaction that causes a bike to rust.
Answers
Bike rust - Is do to being exposed to moisture ( like Water, or any type or liquid.)
Hope this helps!!
Both the situations are examples of corrosion. The green colour seen in statue of Liberty is due to the copper oxide formation whereas the resulting in bike parts is due to the formation of iron oxide in the surface.
What is corrosion?Corrosion is a chemical process by which the metals are destroying and change in colour. Metal surface when open to air or water will react with the oxygen forms corresponding oxides.
Corrosion is an electrochemical process where the oxygen acts as the anode and the metal surface cathode where the oxide deposits and the colour changes. Materials containing iron will react with oxygen forms a red iron oxide called rust which then completely corrode the metal.
Similarly, the statues are made of metal alloys containing copper. Copper also reacts with air or water forms the copper oxide which is green in colour that is why the statues are turning to a gree patchy colour over time.
To find more about corrosion, refer the link below:
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A pitcher throws a softball toward home plate. When the ball hits the catcher’s mitt, its horizontal velocity is 32 meters/second. The softball’s velocity goes to 0 meters/second in 0.8 seconds when caught. If the softball has a mass of 0.2 kilograms, what’s the force of the impact? Use F = ma, where .
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Answer:
To calculate the force of impact F, first lets calculate the acceleration a of the ball:
a=v/t where v is the velocity of the ball and t is time
a=32/0.8=40 m/s²
To get the force F we need the Newtons second law:
F=m*a where m is the mass of the ball and a is the acceleration.
F=m*a= 0.2*40 = 8 N
So the impact force is F= 8 N.
Explanation:
The Newton is the SI unit for ____.
temperature
density
weight
mass
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Answer:
Mass
Explanation:
Specific heat and thermal Energy question. Will give brailiest. 30 points please answer!! ASAP
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Please help ill mark branliest (im using the last of my points for this so please don't scam me)
can someone write about genetically modified foods and the genetic modification process?
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Answer:
ok :)
Explanation: genetically modified organisms (GMOs) are being made by inserting a gene from an external source such as viruses, bacteria, animals or plants (etc) into foods. Genetically modified foods seem to be not as healthy as unmodified foods, according to research. also many people are against it due to the fact that some people go overboard and add too many genetically modified organisms, which causes health risks and unfortunately harms people. sometimes genetically modified food contains toxins and antibiotics. srry i couldnt find much on the process but this is based off my background knowledge so yeah
In a chemical reaction, __________ are the substances present after the reaction.
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Answer:
products
Explanation:
Explanation: Substances present BEFORE a reaction occurs are described as reactants. Substances present AFTER a reaction has occurred are described as products.
The bond between Hydrogen and Chlorine would be ???
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Answer:
chlorine and hydrogen atoms form a single covalent bond. in hydrogen chloride gas because the electrons are shared, not transferred from one atom to another.
Red blood cells need iron. They store iron and typically contain more iron than the fluid around them does. Which action would show the blood cells doing active transport?
pushing iron out
bringing iron in
swelling
shrinking
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Which type of graph would best represent data from this experiment: Measuring the growth of a plant over 2 weeks? Question 1 options:
A. Line graph
B. Bar graph
C. Circle graph
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anybody wanna help?????
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Answer:
straight line down then left and right that should be it
Explanation:
miss girl help- You may not have ever heard of the Inupiat, Inuvialuit, or the Gwich'in peoples, but where can you infer that they live?
Answers
Answer:
The Gwichʼin or Kutchin are an Athabaskan-speaking First Nations people of Canada and an Alaska Native people. They live in the northwestern part of North
Explanation:
Compare and contrast convection and conduction. Cite at least 1 real-life example to support your answer.
Answers
Answer:
Convection is different because it's through the movement of a gas or a liquid. But conduction is through direct contact.
After a car is turned on, the engine becomes hot.
Hope this helps!
Help me out please? Thank you!
Answers
Answer: Continental climates are classified by whether that fluctuates a lot. Hot summer, Cold winters and Little rainfall are all characteristics of Continental Climates
Explanation:
How do water, wind, and thermal energy from the sun move about the earth's surface?
Answers
Molecules move more quickly because the sun's light energy transforms into heat energy on the planet. While cooler polar air and water travel away from the poles and towards the equator, warm air and water molecules rise and move in the opposite direction.
What is light energy ?The capacity to make different forms of light visible to human sight makes light energy a sort of kinetic energy. Light is referred to as an electromagnetic radiation that is produced by hot things like the sun, lasers, and lightbulbs. Photons, which are tiny energy packets, are present in light.
Water temperature, biological activities and plant photosynthesis and development are all impacted by light energy.
The air is heated by the sun, and warm air rises. The colder air from the surroundings is forced to enter to replace the rising heated air. The result of this is the wind. Ocean currents function similarly.
Thus, Molecules move more quickly because the sun's light energy transforms into heat energy on the planet.
To learn more about light energy, follow the link;
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Which statement best describes the message of the poem? *
It about icruas flight pls help and it is the poem not the myth
A Icarus flew too far for no good reason.
B Icarus learned something by flying too far.
C Icarus had a habit of flying too far.
D Icarus was excited by flying too far.
Answers
Min was writing about changes in the state of matter for a research paper. Which of these changes might she include as examples of sublimation?
Choose the two statements that apply.
A. Clothing is hung outside on a day when the temperature is below the freezing point of water. The clothes dry, even though they freeze first.
B. An ice cube melts on the floor, then it evaporates.
C. Bromine is a reddish brown, liquid element. In a closed container, a reddish brown gas exists above the surface of the bromine.
D. Dry ice changes directly to carbon dioxide gas
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Sublimation is the process by which solids are instantly transformed into gases. The forces of attraction between solids are completely defeated when they absorb enough energy. Solids, such as dry ice, undergo sublimation.
What is sublimation?Similar to melting, freezing, and evaporation, sublimation is a form of phase transition, or change in a state of matter. Without ever entering a liquid phase, a substance transforms from a solid to a gas through sublimation. Typical sublimation examples include dry ice, which is solid CO2,additional elements that cannot be sublimated. A solid-solid combination is separated by sublimation when one of the components sublimes (transforms from solid to gaseous state without producing liquid) following heating, leaving the other non- sublimable components behind.Sublimation is the direct transition of a substance from the solid phase to the gas phase without passing through the liquid phase in between. Sublimation is an endothermic phase transition that occurs at temperatures and pressures lower than a chemical's triple point in the phase diagram.To learn more about Sublimation refer to:
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Cindy pours cool milk into a hot bowl of oatmeal and then stirs it with a room-temnperature spoon. Which substance will
have heat flow from it to the other substances?
O the milk
O the spoon
O the oatmeal
O the surrounding air
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A 200 g sample of water at 60.0 degrees Celsius is heated to water vapor at 140.0 degrees Celsius. Expected Answer = 501,440 J Before trying to solve this problem, explain:
what is happening to the water from 60.0 degrees Celsius to 100.0 degrees Celsius?
what happens at 100.0 degrees Celsius?
what happens from 100.0 degrees Celsius to 140.0 degrees Celsius?
Then solve the full problem, showing work & units.
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Which of the following events could increase Earth's temperature?
Question 2 options:
A. a decrease in the relative percent of greenhouse gases
B. planting more trees
C. widespread removal of tropical forests
D. a reduction in the use of fossil fuels
Answers
Answer:
The answer is C & A.
Hope this helped you out!^^
Temperature measures the average kinetic energy of particles of the substances. Therefore, the correct option is option C that is widespread removal of tropical forests.
What is temperature?Temperature is used to measure degree or intensity of heat of a particular substance. Temperature is measured by an instrument called thermometer.
Temperature can be measured in degree Celsius °c, Kelvin k or in Fahrenheit. Temperature is a physical quantity. Heat always flow from higher temperature source to lower temperature source.
We can convert these units of temperature into one another. The relationship between degree Celsius and Fahrenheit can be expressed as:
°C={5(°F-32)}÷9
A decrease in the relative percent of greenhouse gases, planting more trees and a reduction in the use of fossil fuels will decrease the temperature of the earth. Widespread removal of tropical forests increase the temperature of earth.
Therefore, the correct option is option C that is widespread removal of tropical forests.
To know more about temperature, here:
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Please help 20 points!
Answers
The diagram shows a food web in a grassland.
What best describes the role of the grasshopper in the food web?
Group of answer choices
A primary consumer that is food for the lizard and hawk
A secondary consumer that is food for the lizard and hawk
A primary consumer that is food for a single predator, the lizard
A secondary consumer that is food for a single predator, the lizard
Answers
Answer:
I think it is a sorry if i'm wrong
Explanation:
If all three metals were exposed to extremely high temperatures, which would be the last to melt?
(gold, mercury,copper)
I WILL GIVE BRAINLIST!!!
Answers
Answer:
copper
Explanation:
because copper melts at 1,083
gold at 1 064
mercury at - 38
Need help with this.
Answers
Answer:
Explanation:
H3PO4.
Answer:
I'm pretty sure it's H3PO4
what is one-way water moves through the nonliving parts of an ecosystem during the water system?
Answers
Answer:
Water moves through the help of living organisms in an ecosystem. ... Plants absorbs water through their root system and loss by transpiration. Water also moves through the living organisms in an ecosystem. Other nonliving processes such as evaporation, precipitation, water returns back into the atmosphere.
Explanation: welcome
Answer:
evaporation
Explanation:
Lucia is given a picture of several cells. Her task is to identify the cells as plant or animal
cells. How can she pinpoint the cells that are plant cells?
A. She should look for a cell membrane surrounding the cell.
B. She should look for cytoplasm that is filled with organelles.
C. She should look for a large nucleus in the center of the cells.
D. She should look for ovals full of green dots called chloroplasts
Answers
Plant cells have a cell wall, animal cells do not.
Answer:
D She should look for ovals full of green dots called chloroplasts
Explanation:
Plant cells are the only cells that will have chloroplast as it helps the plant go through photosynthesis.
NEED HELP ASAP
I GIVE BRAINLY
Answers
Answer:
True, False, True, and False
Explanation:
2. True
3. True
4. False
I hope this helped :)
Need help with this.
Answers
Answer:
D
Explanation:
because it is changing to its own compound of chemicals.
Which of these statements about gravity are true?
Gravity helps us stay situated on Earth without floating away.
Gravity gives objects their mass.
Gravity holds our galaxy together.
Multiplying the mass of an object by the acceleration due to gravity gives the weight of the object.
Gravity helps scientists launch spacecraft out of Earth’s atmosphere.
Answers
Answer:
gravity holds our galaxy together
Explanation:
that is why we don't levitate into the air
ok so the question is Sort the processes based on the type of energy transfer they involve. condensation
freezing
deposition
sublimation
evaporation
melting and the catigoreies are thermal energy add or thermal energy removed.
Answers
Maybe evaporation???????????????
Answer:
Maybe evaporation and sublimation??????????????????????
Explanation:
