Answer:
Fire's basic combustion equation is: fuel + oxygen —> carbon dioxide + water, a line many of us had drummed into us by school teachers. However, combustion reactions do not proceed directly from oxygen to carbon dioxide.
Explanation:
Fire's basic combustion equation is: fuel + oxygen —> carbon dioxide + water, a line many of us had drummed into us by school teachers. However, combustion reactions do not proceed directly from oxygen to carbon dioxide.
The equation for luminous flame assuming the laboratory gas is butane is fuel + oxygen → [tex]CO_{2} + H_{2}O[/tex].
What is butane?Natural gas, the source of butane, would be a colorless, odorless, but also shapeless gas by nature. This kind of gas is extremely prevalent throughout the world and seems to be comparatively cheap to mine as well as produce.
What is a luminous flame?A burning flame that is clearly seen would be called a luminous flame.
When fuel is reacted with oxygen gas then it will form carbon dioxide and water. It can be written as:
fuel + oxygen → [tex]CO_{2} + H_{2}O[/tex].
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You have a substance with a length of 2 cm, width of 3 cm, and a height of 4 cm. Its density is known to be .5 g/cm3. What is the mass of the sample you have?
Answer:
12 grams
Explanation:
D = m/V
0.5g/[tex]cm^3[/tex] = m/(2*3*4)
[tex]\frac{0.5g}{cm^3} = \frac{m}{24cm^3}[/tex]
m = 12g
How do we draw a lewis dot diagram (electron dot diagram) for sodium ethyl xanthate? Please I'll mark brainliest for the correct answer.
Refer to the attachment
the arrows in the diagram below show the circulation of air on a sunny day. based on this diagram, what type of local wind would occur?
A. a sea breeze because of the warm air from the land rises and the cool air from the water comes in.
B. a sea breeze because of the warm air from the water rises and cool air from the land comes in.
C. a land breeze because the warm air from the water rises and the cool air from the land comes in.
D. a land breeze because the warm air from the land rises and the cool air from the water comes in.
Answer:
A
Explanation:
Sea breeze because the warm land air rises and the cool sea air come in
Sam and Shania are doing an experiment with water and salt water.
What type of data might be collected for this experiment?
a.
how much salt is in the water
b.
how quickly the water in each beaker comes to a boil
c.
the temperature of the water
d.
how quickly the water evaporates
Watch the following videos on molecule mixing encapsulators:
Rockwell Retro Encabulator
Virtual Retro Proto Turbo Encabulator
Then answer the following questions:
1) What is the purpose of the 6 hydrotropic marcel veins in the system?
2) Why is the non-reversible tremie pipe so necessary to the main function of the encapsulator?
3) Do you believe it was a good idea to use the technology of the encapsulator to inverse the current in unilateral phase detractors? Why or why not?
Answer:
here you go
Explanation:
Which of the following is a chemical change?
A. boiling of water
B. melting a cube of ice
C. mixing water and oil
D. splitting water into hydrogen and oxygen
What is needed for photosynthesis to take place? (Select all that apply.)
carbon dioxide
glucose
energy
water
all but energy i think but if not its a and d
Explanation:
Answer:
carbon dioxide, water, and sunlight
Explanation:
These things .is needed for photosynthesis to take place. By the way, sunlight is Energy.
What is the chemical test for water
Copper(II) sulfate in its purest form is white. Because it is devoid of water, it is also known as anhydrous copper(II) sulfate. A sample of copper(II) sulfate becomes blue when water is present.
• Temperature measurements
Temperature testing aids in determining the pace of biochemical reactions in an aquatic environment, as well as whether they can occur at all. If the water temperature is too high, the water's ability to contain oxygen is reduced, and organisms' ability to withstand certain contaminants is reduced.
• Checking the pH level
This instrument determines the acidity of water. The majority of aquatic species can only thrive in a pH range of 6 to 8.
• Test for chloride
Chloride may be found in both fresh and salt water. Mineral dissolution and industrial pollutants, on the other hand, can worsen its levels.
• Testing for salinity
The total amount of non-carbonate salts dissolved in water is calculated. The salinity of your groundwater can tell you how salty your topsoil will become as the water table rises.
• Oxygen Dissolved Test
The amount of oxygen dissolved in water is measured with this device. Aquatic life can't conduct cellular respiration without it, hence it's an important indication of water quality.
• Test for turbidity
Measures the quantity of suspended particle matter in the water, or, to put it another way, how clear the water is. When there is a lot of turbidity in the water, photosynthesis suffers because light can't get through, which raises the water temperature.
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YOur teacher asks you to write a paper tht supports a claim with evidence. In three to five sentences, describe one claim you would make and discuss different forms of evidence you can collect to support your claim. Where would you look for this evidence?
PLEASE HELP
Answer:
People should fund the nations space program. People have a insatiable curiosity about space. "Curiosity inspired Galileo's work." The Space Program has made vital changes in science and technology. "We have GPS devices and "memory foam" and have learned about Earth."
Explanation:
I actually am just learning about this so I took this from an assignment I did in class and at the teachers table. I could give you the passage if you'd like.
Lab: Thermal Energy Transfer
Answer:
Thermal energy transfers occur in three ways: through conduction, convection, and radiation. When thermal energy is transferred between neighboring molecules that are in contact with one another, this is called conduction.
In which of the following places would you MOST likely an organism classified in the domain Archaea?
A.On human skin
B.On sea ice in Antarctica
C.In the field of a wheat farm
D.In a river flowing through a valley
The corrrect answer is B , On sea ice in Antarctica , it is most likely to find Archaea domain .
What is an Archaea Domain ?
These domain include microorganisms that can survive in the most extreme environments , these are classified in Eukaryota, Eubacteria, and Archaebacteria .
On the basis of research it has been found that many of the Archaea domains have been found on the surface water in cold marine environments .
Therefore it is most likely that Archaea domain to be found on sea ice in Antarctica. Hence correct answer is B .
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Which statement best defines the center of an atom and what it is made of?
The center of an atom is the electron, and it is made up of protons.
The center of an atom is the nucleus, and it is made up of protons and neutrons.
The center of an atom is the proton, and it is made up of electrons and neutrons.
The center of an atom is the nucleus, and it is made up of charges.
Which is not a scientific theory?
a.
Energy in a system can neither be created nor destroyed.
b.
Characteristics of organisms or populations change over time from generation to generation.
c.
Earth’s outer layer is divided into plates that move around.
d.
Light has both a particle nature and a wave nature.
Answer:
I think C
Explanation:
C is the best answer. According to me, It is not a scientific theory. Hopes this helped.
What are the ways humans use, collect, and distribute renewable and nonrenewable natural resources?
Your answer should include at least six complete sentences to explain the claim, evidence, and reasoning.
Answer:
Air and water pollution, damage to public health, wildlife and habitat loss, water use, land use, and global warming emissions.
Explanation: HOPE THIS HELPS!!!!The United States has about which percentage of the world's coal reserves?
A- 5%
B-20%
C-50%
D- 90%
Answer:
B - 20%
Explanation:
Answer:
B
Explanation:
The united states has 22% of the world's Coal reserve so if you round that up its 20%
Manufacturers who meet the ENERGY STAR standards get to use the ENERGY STAR logo on their products and advertising. Consumers, however, do not get the guarantee their products meet those standards
A. True
B. False
Calculate the average distances the car and the washer traveled from the top of the track. Record the averages and your qualitative observation in table B of your student guide. Record what happened to the washer after the car hit the textbook. Explain whether the washer did the same thing every time.
What is the average distance the car traveled _____cm
What is the average distance the washer traveled ______cm
The average distance the car traveled is 75 cm. The average distance the washer traveled is 200 cm.
What is distance?Distance is a measurement of how far away two things or locations are, either numerically or occasionally qualitatively. Distance can be a measurement of length in physics or to an estimate based on other factors in common use.
The phrase is widely used figuratively to refer to a measurement of the distance between two comparable things or a level of separation because spatial cognition is indeed a rich source of implicatures in human understanding. The average distance the car traveled is 75 cm. The average distance the washer traveled is 200 cm.
Therefore, the average distance the car traveled is 75 cm. The average distance the washer traveled is 200 cm.
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You have a sample with a volume of 55.7 mL and a mass of 67.9 g. Will this sample float in water? Why or why not?
Answer:
No it will not
Explanation:
It will not float because the density is 1.21903052065, it needs to be less than 1 to float
fill in the blanks: label the different parts of the rock cycle where igneous, sedimentary, and metamorphic rock are formed.
Answer:
☞rock cycle
=> The rock cycle is a basic concept in geology that describes transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous. Each rock type is altered when it is forced out of its equilibrium conditions.
=> There are three main kinds of rocks: igneous rock, metamorphic rock, and sedimentary rock. ... It can erode into sediment or melt into magma. It is formed under extreme pressure and temperature deep inside mountain chains.
Explanation:
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11.
(06.03 MC)
Two positions of the sun, moon, and Earth are described below:
Position A: Moon and sun are at right angles to each other relative to Earth
Position B: Moon is between the sun and Earth
Which statement is true regarding the type of tides that can occur? (1 point)
A neap tide can occur for position A but not for position B.
A spring tide can occur for position A but not for position B.
A spring tide can occur for both position A and position B.
A neap tide can occur for both position A and position B.
THERE'S NO PICTURE SORRY
Answer:
A neap tide can occur for position A but not for position B.
Explanation: Position B is a spring tide.
Only answer if you know 100% it's correct. this means if you're not sure, DON'T answer.
Answer:
D is the answer
Explanation:
First of all, conservation is when you conserve resources, or use them less, to be better for the environment. Using a gas powered car does not, as carbon monoxide and other toxic gases are sent into the atmosphere. Using a disposable bag is bad because the plastic is sent away to the environment every time you shop. Leaving water running when you brush your teeth wastes water and is bad for the environment. Recycling aluminium cans and glass bottles is good for the environment, and is conserving resources because the cans and bottles are reused, so instead of wasting, you are reusing.
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help me plssssssssssssssss
Identify which of the following best explains the transformation process in photosynthesis.
In photosynthesis, the transformation process is in which the light energy is converted into chemical energy. Therefore, option (D) is correct.
What is Photosynthesis?Photosynthesis can be defined as a process by which phototrophs transform sunlight into chemical energy. This chemical energy can be stored in the form of sugars such as glucose, which are formed from water and CO₂ gas.
In the Photosynthesis process, the components are carbon dioxide and water which yield products oxygen gas, and glucose. Therefore, the photosynthesis reaction is generally said to be an endothermic reaction because the energy is provided in the form of sunlight.
[tex]6CO_2 +6H_2O\longrightarrow C_6H_{12}O_6 +6O_2[/tex]
Each chloroplast in green plants contains a green-colored pigment called chlorophyll which is mandatory for this process to occur. Sunlight is absorbed by the chlorophyll of the plants whereas carbon dioxide gas and oxygen gas enter via the tiny pores of the stomata of leaves.
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Carrying capacity is
A
anything that limits how many organisms can live in an ecosystem.
B
how green plants make carbohydrates.
C
the process of respiration.
D
the number of organisms an ecosystem can support
Answer:
I believe it's D
Explanation:
Thermal energy circulates through the atmosphere and oceans by the process of convection. Which source of energy drives convection?
a.
nuclear energy
b.
electromagnetic energy
c.
gravitational potential energy
d.
solar energy
What is a difference between ferns and gymnosperms?
ferns are nonvascular plants
gymnosperms have seeds
ferns have seeds
gymnosperms are nonvascular plants
Answer:
b gyrosperms have seeds
Explanation:
Answer:
gymnosperms have no seeds
Explanation:
The graph shows the consumption of gasoline and diesel fuels by vehicles in the United States for a period of 40 years.
What consequence would likely result from the data trend presented in the graph?
A. It would lead to an increase in deforestation.
B. It would lead to an increase of global temperatures.
C. It would lead to a decrease in oil pollution of a nearby marine environment.
D. It would lead to a decrease in contamination of groundwater resources.
Answer:
B. It would lead to an increase of global temperatures.
Explanation:
Gas burns when it is hot. Therefore the more gas that our cars consume, the hotter the air will be when the car releases those gas vapors. Causing the air to become hotter.
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A student has a rectangular block. It is 2 cm wide, 3 cm tall, and 25 cm long. It has a mass of 600 g. First, calculate the volume of the block:
density of the block
Answer
To Be Honest I don't even know myself but can u help me please
Explanation:
Please someone help my on my question
Energy-efficient jobs are growing! One job includes being a conservation scientist, which is part of the STEM job cluster. What is the best definition for a conservation scientist?
A. manage, improve, develop new machines to cook faster and more evenly.
B. develop, document, and research new ways to move people into careers of interest
C. manage improve, and protect natural resources to maximize their use without damaging the environment.
A conservation scientist is one who manage improve, and protect natural resources to maximize their use without damaging the environment. The correct option is C.
What is conservation scientist?A scientist is defined as a person who always studies systematically and uses research and evidence to prepare hypotheses. A conservation scientist is the person who protects, manages and improves the natural resources.
It is the conservation scientist who supervise the forest and give instructions to the workers and technicians who do the labour work for maintaining the forest. They also analyze the data on forest and soil quality and notice any damage to trees caused by fires.
The conservation scientist is also involved in choosing and preparing sites to plant new trees and it is their duty to remove the timber with minimum environmental damage. They also participate in the suppression of the forest fire.
Thus the correct option is C.
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Select the Independent, Dependent and Controlled Variables
Answer:
The independent variable is graphed on the x-axis. The dependent variable, which changes in response to the independent variable, is graphed on the y-axis. Controlled variables are usually not graphed because they should not change.
Answer:
The independent variable is graphed on the x-axis. The dependent variable, which changes in response to the independent variable, is graphed on the y-axis. Controlled variables are usually not graphed because they should not change.
Explanation:
please right a lot if you can thanks
Answer:
The terrarium model shows the many different aspects of life. The dirt shows the geosphere, which is the ground thaat the plant can grow in. The biosphere is represented by the plant growing, and the hydrosphere is the water that you use to water the plant, and the condensation that will gather on the lid. The atmosphere is the air inside the jar.
Explanation:
Each of the above show how the environment works.