Help me find how many moles
Answer:
H 13.8mol CO2
Explanation:
we know that per 1 mol there is 6.022x10^23 molecules
so divide 8.23x10^22/ AVG # ( # above) we get 13.8mol of CO2 not to be confused with A
Please help me out with this
Answer:
number 3 i think
Explanation: im sorry if im wrong
Please fine the volume please please please need asap
Answer:
64.2
Explanation:
2.8+17.8+13.7+8+21.9 = 64.2
PLS HELP I NEED TO RAISE MY GRADE !!
domain, kingdom, phylum, class, order, family, genus, and species
domain
Archaea, Bacteria, and Eukarya
kingdom
animal, plant, fungi, protist and monera.
phylum
Porifera, Coelenterata, Platyhelminthes, Aschelminthes, Annelida, Arthropoda, Mollusca, Echinodermata, Chordata.]
Do which levels of organization do unicellular organisms not have? Explain why.
Answer:
Unicellular organisms do not have levels of organization. Unicellular organisms need fewer resources and some can live in harsh conditions. They are very small and are easily eaten by other organisms
Explanation:
What makes viruses so dangerous but vaccines so important? i am struggling lol
Answer:
viruses can kill you vaccines can save your life.
Explanation:
Answer:
The effect of leaky vaccines on how disease spreads is explained by the “imperfect-vaccine hypothesis”. It holds that, without vaccination, a very virulent virus can get into a population and kill infected hosts (people or animals) very quickly – before they have a chance to spread it. This means that the virus will die out very quickly too, as all potential hosts will be dead or immune to it.
Explanation:
CHEMISTRY PLEASE HELP!! You have 45 grams of Carbon (C). How many moles of Carbon do you have? Use the drop down selections to help you fill in the table and solve the problem.
Answer:
3.75mole
Explanation:
Given parameters:
Mass of the carbon(C) = 45g
Unknown:
Number of moles of carbon = ?
Solution:
The number of moles of a substance can be found using;
Number of moles = [tex]\frac{mass}{molar mass}[/tex]
Molar mass of carbon = 12g/mol
Number of moles = [tex]\frac{45}{12}[/tex] = 3.75mole
What state (solid, liquid, gas) is mercury in at the boiling point of water, 100°C? Explain.
Mercury is in a liquid state
Mercury's melting point is somewhere around -34 Degrees Celcius. Thus it should be assumed it will be a liquid at this temperature. Not a gas however as mercury's boiling point is somewhere in the 600 Degree range
Object A and B have the same mass. Which object is experiencing a stronger gravitational force?
A). Object A, because shorter distance between objects results in a stronger gravitational force
B). Object B, because longer distance between objects will result in a stronger gravitational force
C). They experience the same gravitational force
Both “blank” and “ blank” use electric current and coiled wires to produce strong magnetic fields.
Answer:
electromagnet
Explanation:
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil. A current through the wire creates a magnetic field which is concentrated in the hole, denoting the center of the coil.
catalysts are molecules that lower the activation energy for a given reaction. what is the specific term used for biological catalysts?
Catalysts are molecules that lower the activation energy for a given reaction. The specific term used for biological catalysts is Enzymes.
What is catalyst?A catalyst is defined as a substance which increase the rate of the reaction chemical reaction, and lowers the pressure and temperature which are needed to start one, in such a way that it doesn't take participate in the reaction.
What is Activation energy?Activation energy is the minimum amount of energy which must be needed by the compounds foe the production in a chemical reaction. The activation energy of chemical reaction is mainly measured in joules per mole, kilocalories per mole or in kilojoules per mole.
What are Enzymes?Enzymes are the chemical catalysts which accelerate the chemical reactions at the physiological temperatures by decreasing their activation energy.
Thus, we concluded that the biological Catalysts that lower the activation energy for a given reaction is Enzymes.
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True or False:
Rain is the only form of precipitation that this pollutant takes.
Answer:
I’m not sure probably false
Explanation:
Which best describes electromagnetic waves moving from gamma rays to radio waves along the electromagnetic
spectrum?
A) Wavelength and frequency decrease.
B) Wavelength and frequency increase.
C) Wavelength increases, and frequency decreases.
D) Wavelength decreases, and frequency increases.
Answer:
Wavelength increases, and frequency decreases.
for my lazy friends its letter C
Explanation:
e2021
The statement 'wavelength increases and frequency decreases' best describes electromagnetic waves moving from gamma rays to radio waves (option C).
What is wavelength?The term wavelength makes reference to the distance between the picks of the waves in the electromagnetic spectrum.
The wavelength and frequency can be used to understand the dynamics of electromagnetic waves.The frequency of a wave refers to the period of oscillation within an electromagnetic spectrum.In conclusion, the statement 'wavelength increases and frequency decreases' best describes electromagnetic waves moving from gamma rays to radio waves (option C).
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Please help me answer this ASAP
Answer:
h B i f M r
Explanation:
that was just my estimated guess but it seems right to me
6a) What would the DIGITS (with the decimal) of 0039283 be in scientific notation?
Answer:
3.9283 x 10^-3
Explanation:
Assuming there is a missing decimal in front of your first zero
What Are the 3 building blocks of neutral fat molecules ?
Answer:
Gylcerol Back Bone
Carbons and Hydrogens
Explanation:
Aristotle did not believe that
could exist.
Answer:
aristotle din not beileve in anything. he looked at the world describe what happend
ide appreciate if someone would help me with these.
Answer:
can't do much
Explanation:
baking soda;8,alkaline
bleach:12,alkaline.
coffee:5.10,acidic
coke;coke,acidic
milk;6.9,acidic.
lemon juice;2,acidic
this is all i can do.
burning wood is an example of ___ energy
Answer:
burning wood is an example of kinetic energy.
Explanation:
because when the wood is burning it is releasing the stored energy.
hope this answer will help you
have a great time
Zn + __HCI → __ZnCl + _H2
I LOVE balancing chemical equations!
Answer:
2 Zn + 2 HCl -> 2 ZnCl + 1 H₂
Explanation:
These coefficients correct balance this equation.
Please add me as Brainliest, I need it to move onto the next level.
why do my teacher's overload me with work?
Answer:
for you to get smarter
Explanation:
Why teachers give lots of work:
They teach you new things you may not have known before
They teach you to think.
They teach you to be curious about things you didn’t know you wanted to know.
They try and teach you the reason you should love learning.
They teach you about different perspectives in our world.
They teach you how mistakes can be learned from.
They teach you how to take turns.
They teach you respect.
They teach you about the world - one that is outside your house, town, state, continent, and most of your mind.
They show you books you would never pick up on your own.
They teach you the how, who, what, why, where, and when.
They teach you the importance of communication.
They teach you how to get along with others - even those you don’t like.
They teach you to share.
They teach you patience.
They teach you compassion.
These are only a few things a good teacher will teach you. Some you will learn in a year and other things take several years and several teachers.
A coastal area that once supported a thriving fishing industry is overfished. The number of species found living in the marine ecosystem decreases. Which of these activities is most likely to increase the natural biodiversity in the area?
Answer:
Building artificial reefs and limiting fishing activity
Explanation:
Building artificial reefs and limiting fishing activity Introducing non-native species to fill unoccupied habitats and banning fishing Building artificial reefs and increasing fishing activity Eliminating non-native species and encouraging fishing for large predatory fishThe only activity that can successfully increase the natural biodiversity of fishes in the area would be building artificial reefs and limiting fishing activities.
The building of artificial reefs would create several microhabitats for fishes to thrive while limiting fishing activities would ensure that the rate of thriving or multiplication of fishes far outweighs the rate fishes are being removed from the area. Both actions will work synergistically to increase the natural biodiversity of fishes in the area.
The introduction of non-native species can have a negative consequence for the area as non-native species have a history of reducing biodiversity by outcompeting the native species and becoming invasive.
Building artificial reefs and increasing fishing activities would be counterproductive. While artificial reefs can increase the thriving of fishes, increasing fishing activities would take away the gains of the artificial reefs.
Eliminating non-native species and encouraging fishing for large predatory fish will disrupt the ecological balance of the area and might have negative effects on biodiversity.
If u like someone
how do u know if they like u back.
Answer:
The chemistry between you will be instant. Sometimes it may be hard to know if they like you back. Knowing that you can not live without them and that you bump in to each other everywhere you go, is fate at work. You might also just need the courage to ask them out. You never know what will happen if you try. :)
Answer:
You will feel it
Explanation:
In which direction is this wave traveling?*
(1 Point)
A. up
B. down
C. to the left
D. to the right
Answer:up
Explanation:
16. Type the correct answer on the line below. Given :CaC2 + N2 CaCN2 5 points
+ C In this chemical reaction, how many grams of N2 must be consumed
to produce 265 grams of CaCN2? Express your answer to three significant
figures. The reaction requires grams of N2.
Your answer
I need help PLEAS
Answer:
Mass = 80.6 g
Explanation:
Given data:
Mass of N₂ consumed = ?
Mass of CaCN₂ formed = 265 g
Solution:
Chemical equation:
CaC₂ + N₂ → CaCN₂ + C
Number of moles of CaCN₂:
Number of moles = mass/molar mass
Number of moles = 265 g/ 92.11 g/mol
Number of moles = 2.88 mol
Now we will compare the moles of CaCN₂ and N₂.
CaCN₂ : N₂
1 : 1
2.88 : 2.88
Mass of N₂:
Mass = number of moles × molar mass
Mass = 2.88 mol × 28 g/mol
Mass = 80.6 g
when the number of protons and electrons are equal
Answer:
when the atom is neutral
Explanation:
which arrow represents water forming outside a cold water bottle left outside
Answer:
The phase transition that represent the the cooling of gaseous water to form liquid outside a bottle left outside which is a process known as is represented by the arrow 2
Explanation:
The different phase transitions that occur in mater are;
1) A phase transition from the solid phase to the liquid phase which occur by heating, represented by the arrow 2 and the process is known as melting
2) A phase transition from the liquid phase to the gaseous phase which occur by further heating the liquid, represented by the arrow 1 and the process is known as evaporation
3) A phase transition from the gaseous phase to the liquid phase which occur by cooling the hot gas, represented by the arrow 2 and is known as condensation
4) A phase transition from the liquid phase to the solid phase which occur by further cooling the liquid, represented by the arrow 5 and the process is known as freezing
5) A phase transition from the solid phase to the gaseous phase which occur by heating the cold solid, represented by the arrow 3 and the process is known as sublimation
6) A phase transition from the gaseous phase to the solid phase which occur by cooling the gas, represented by the arrow 6
Therefore, the phase transition that represent the the cooling of gaseous water to form liquid outside a bottle left outside is represented by the arrow 2
complete the puzzle below by identifying the four type of speech context and two types of interpersonal communication evident in the presented situation
One mole of any substance contains 6.022 × 1023 representative particles (atoms, molecules, ions, or formula units). A sample of silver metal consists of 4.26 nanomoles. How many silver atoms does it contain?
Answer:
it contains 2.56 x 10^15.
Explanation:
given no. of moles = 4.26 x 10^-9 atoms
one mole has 6.022 x 10^23 atoms
so it contains 4.26 x 10^-9 x 6.022 x 10^23 atoms
(If we suppose silver's atomic weight as 108.)
A certain compound is made up of two bromine atoms, one nitrogen atom, and one chlorine atom. What is the chemical formula of this compound?.
The chemical formula of this compound is NBr₂Cl.
A chemical formula shows the elements in a compound and the relative proportions of those elements.
The name of this compound is N,N-dibromochloroamine.
Molar mass of the compound NBr₂Cl is 209.26 g/mol.
Nitrogen is the central atom in this compound (see the picture below).
Electron configuration for nitrogen: ₇N 1s² 2s² 2p³.
Electron configuration of chlorine atom: ₁₇Cl 1s² 2s² 2p⁶ 3s² 3p⁵.
Electron configuration of bromine: ₃₅Br 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁵.
Nitrogen is in group 15 of Periodic table of elements and his atomic number is seven, which means that nitrogen has seven electrons.
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