Answer:
B is the correct answer
Describe how the mol- ecule whose formula is NO is different from the molecule whose formula is N 2 O.
Answer:
No, it's a molecule that contains one nitrogen atom and one oxygen atom. This is in contrast to N 2 O, which consists of two nitrogen atoms and one oxygen atom.
What is the wavelength of a light of frequency 4.47x10^14 Hz?
(It's 671 nm)
According to the Law of Conservation of Matter _______.
a. No atoms are created or destroyed whenever matter undergoes a physical change but can when matter undergoes a chemical change.
b. Atoms are created but not destroyed whenever matter undergoes a physical or chemical change.
c. Atoms are destroyed but not created whenever matter undergoes a physical or chemical change Some atoms are created or destroyed whenever matter undergoes a physical or chemical change.
d. No atoms are created or destroyed whenever matter undergoes a physical or chemical change.
Answer:
A.
Explanation:
Matter is neither created nor destroyed unless it is acted upon by a chemical force/change.
Which chemical compound is added to natural gas to safely detect leaks in pipelines and appliances?.
Answer:
Mercaptan is the additive that is added to natural gas to make it easier to detect in case of a leak. The most important thing to know about mercaptan is that it stinks. Some people compare it to the smell of rotten eggs.
Explanation:
How many moles are in 3.5 of “K”?
Explanation: i don't know how can i know the moles in element?
What are the uses of Diamonds?
your own answer
please help
Answer:
Diamonds are very important in our daily lives ,so therefore it has many uses
1.They are used ad beauty products
2.They are used in automative industry
3.They are used in making windows
4.They are used as medicine
What number of moles of aluminum is required to completely react with 3.20 moles of iron(III) oxide, Fe2O3 according to the following reaction?
SHOW YOUR WORK!!
Fe2O3 + 2 Al → 2 Fe + Al2O3
Answer: 6.40 moles
Explanation:
What is the main source of energy for the water cycle.
Answer:
The main source of energy is the sun. The sun has a big part in the water cycle because it turns the water into water vapor. This cause the water cycle to start over again once it rains. Therefore, making the sun ne of the biggest parts in the water cycle.
Aluminum has a density of 2.70 g/cm 3 . Boron has a density of 2.08 g/cm 3 . Predict the density of gallium. Explain your answer.
Answer:
dohsf approval all or pow
Explanation:
Substance Specific Heat Capacity J/Kgo C Ammonia 4700 Ethanol 2440 Gasoline 2220 Water 4186 A liquid has a mass of 18. 39g. If 655J of heat are required to change the temperature from 32. 8oC to 18. 2oC, what is the identity of the liquid? A) ammonia B) ethanol C) gasoline D) water
Answer:
B) ethanol
Explanation:
that is the answer I got it in my test
Use the image to rank the colors from the color that will refract the least to the color that will refract the most.
Least
Most
Answer:
Violet is most likely to refract, while red is least likely to refract
Explanation:
The wavelengths :)
Dispersion states that the shorter the wavelength of the light/color, the more it is refracted. Because of this, the red light is less likely to refract while violet light is most likely to refract
What kind of energy can be transferred?
____energy
Answer:
I think it's thermal energy. c:
Answer
Thermal energy transfers occur in three ways: conduction, convection, and radiation. Conduction is when thermal energy is transferred between molecules in contact with one another.
Thermal is the answer.
What type of compound is HCI?
A. Ionic
B. Molecular
C. Acid
D. Hydrate
What causes water droplets to form on the outside of a glass?
Answer:
under me :)
Explanation:
There is water vapour present around us. When you put cold glass on a table, the water vapour comes in contact with the glass, and condenses, forming water droplets which are seen around the glass. Hope this helps
A weather map of Chicago with a high pressure system and warm front. Based on the weather map, what might the upcoming weather be like in Chicago? Warm, dry, clear skies Warm, humid, possible thunderstorms Cold, dry, clear skies Cool, humid, possible thunderstorms.
A weather map of Chicago with a high pressure system and warm front, so the upcoming weather be Warm, dry, clear skies in Chicago.
What is high pressure of air?High pressure of air tries to compress the gas from upper atmosphere to lower atmosphere.
When any gas has high pressure then it sinks towards the land from the upper atmosphere, and at the upper part air gets cool and form water vapor. When air comes towards the land then, it becomes warm and dry as it doesn't participate in the formation of precipitate. Due to which we are able to see clear sky at the dry days.
Hence, option (1) is correct i.e. Warm, dry, clear skies are the upcoming weather.
To know more about pressure of air, visit the below link:
https://brainly.com/question/441281
Answer:
A. Warm, dry, clear skies
( Hope this helps ) <3 ( Give person above brainliest )
Is H2O a compound, mixture or element? Molecule, mixture, compound, element.
Answer:
Compound
Explanation:
This is because it made up of two elements that's is hydrogen and oxygen in the ratio of 2:1 respectively
Answer:
Compound
Explanation:
H2O isn't on the periodic table so it's not an element. H2O isn't a molecule because it's water. H2O isn't a mixture because it can't be seperated. So, it must be a copound.
Is boiling a chemical reaction?
Answer:
yes, because water is reacting with air and heat and creating a boiling effect.
Explanation: kracken doge
Answer: Freezing and boiling are considered to be examples of chemical reactions. This depends on their conception of substance. If students regard ice as a different substance from liquid water they are likely to classify the melting of ice as a chemical change.
Explanation:
Boiling water, boiling water is an example of a physical change and not a chemical change because the water vapor still has the same molecular structure as liquid water (H2O). No, boiling water is NOT a chemical reaction, but it is a physical change.
How do you test for carbon dioxide ?? Explain
Answer:
Carbon dioxide reacts with calcium hydroxide solution to produce a white precipitate of calcium carbonate
Explanation:
. Limewater is a solution of calcium hydroxide. If carbon dioxide is bubbled through limewater, the limewater turns milky or cloudy white
help please:)
how do the red blood cell's shape and size support its function
Answer:
The size of a red blood cell allows for more room to have more cells, The shape of a red blood cell allow it to trap and absorb oxygen
Explanation:
Red blood cells are very small, The shape of a red blood cell isn't just a sphere
You have 40 g of NaCl in 530 g of water.
What is the freezing point?
Answer:
801 •C
Explanation:
Hope this helps! :)
Please mark brainliest if it helped!
What is the difference between a nuclear and thermonuclear bomb.
Explanation:
the difference between a nuclear bomb and a thermonuclear bomb is that :
A nuclear bomb derives it's destructive force from nuclear reaction. That is,fission reaction, fusion reaction or both.
While thermonuclear bomb derives it's own force from a chain reaction in which isotopes of hydrogen combines under extremely high temperature to form helium under a process known as nuclear fusion.
PLEASE RATE AND MARK BRIANLIEST!!!
how many moles of hydrogen are in 4.0 moles of H2SO4
Answer:
1 grams H2SO4 is equal to 0.010195916576195 mole.
Explanation:
Waste dairy whey is used to grow Kluyveromyces fragilis yeast in a continuous culture system operated at 30C and 1 atm pressure. Medium containing 4% w/w lactose (C12H22O11) and 0. 15% w/w NH3 flows into a specially designed aerated bioreactor at a rate of 200 kg h21. The reactor is compartmentalised to facilitate gravity settling of the yeast; a suspension containing concentrated cells is drawn off continuously from the bottom of the reactor at a rate of 40 kg h21, while an aqueous waste stream containing 0. 5 kg cells per 100 kg leaves from the top. All of the lactose provided is utilised by the culture. The biomass yield from lactose is known from preliminary experiments to be 0. 25 g g21. The composition of the K. Fragilis biomass is determined by elemental analysis to be CH1. 63O0. 54N0. 16 1 7. 5% ash.
Required:
a. What is the RQ for this culture?
b. It is proposed to supply the reactor with air at a maximum flow rate of 305 litres min21. Will this provide sufficient oxygen? If not, what minimum level of oxygen enrichment of the air is needed if the total gas flow rate is 305 litres min21?
c. What is the concentration of residual NH3 in the aqueous waste stream?
d. What is the concentration of cells in the cell concentrate?
Heavy rain and runoff can
A cause erosion
B cause flooding
C fill reservoirs
D all of the above
What is the empirical formula of these molecules? Down below. Show your work.
censures hydrogen Oxygen
Answer:
v
Explain the process that creates chemical elements lighter than iron, including evidence.
Answer:
. The authorities have closed the casino.(change in passive)
What is anaerobic respiration explain in your own words pleaseeee and don’t answer for points because I will report you
Answer:
Breaking down of food substances without oxygen
Explanation:
The release of energy by breaking down food substances in the absence of oxygen
Weathering and Erosion Unit Test
Explain how crustal deformation builds landforms.
O
When two tectonic plates start to push into each other they can rise up and build mountains, or sink under
and create deep valleys.
O When wind and rain slowly wear away rock, they leave behind new looking landforms.
If
o
When two tectonic plates slide away from each other the inner liquid layer of the mantle comes to the
surface as lava and creates new islands.
It
When sediments are laid down over vast areas the forces involved create rock over a very long period of
time.
It
HELP ME ASAPPP PLEASEEE
Crustal deformation builds landforms when two tectonic plates start to push into each other they can rise up and build mountains, or when they sink under, they create valleys.
How crustal deformation builds landforms?Tectonic pressure in a crust can cause folding. Folding can end up with the formation of valleys and mountains so we can conclude that when two tectonic plates start to push into each other they can rise up and build mountains, or when they sink under, they create deep valleys.
Learn more about plates here: https://brainly.com/question/16939139
Why glucose and fructose produce same shaped products with phenylhydrazine?
During the reaction of glucose and fructose with excess phenylhydrazine to form osazone, only the C-1andC-2 atoms of glucose and fructose participate in the reaction. The rest of the molecule remains intact. Hence, glucose and fructose produce the same osazone.
explain newtons 2nd law of motion by using the example of a rollercoaster
Answer:
When the cart gets to down-hill drop, for a moment it is at rest, until gravity (a force) acts upon the cart and causes it to accelerate downward.
Explanation:
Newton's second law says that when a constant force acts on a massive body, it causes it to accelerate, i.e., to change its velocity, at a constant rate. In the simplest case, a force applied to an object at rest causes it to accelerate in the direction of the force.