Fill in the blanks with the correct words.
The movement of molecules from an area of low concentration to an area of high concentration occurs in help plz in being timed I’ll mark u Brainlyest
transport.
transport, molecules move from an area of high concentration to an area of low concentration.
In
Intro
Done
Answers
Answer:
i had this same question and the answer is electron.
Explanation:
Related Questions
Consider the reaction: 3 N2 (g) + 2 O3 (g) → 6 NO (g) ΔfH ° (kJ/mol) 0.00 142.26 90.37 Sm ° (J mol-1 K-1) 191.5 237.7 210.6 What is ΔrG ° for this reaction in kJ/mol at 350 K?
Answers
Answer:
Explanation:
3 N₂ (g) + 2 O₃ (g) → 6 NO (g)
Δ H(rxn ) = 90.37x 6 - ( 0 + 142.26 x 2 )
= 542.22 - 284.52
= 257.7 kJ
Δ S(rxn ) = 6 x 210.6 - ( 2 x 237.7 + 3 x 191.5 )
= 1263.6 - ( 475.4 + 574.5 )
= 213.7 J / K
Δ G = Δ H - T Δ S
= 257.7 - 350 x 213.7
= - 74537.3 kJ .
Δ G / mole = - 74537.3 / 6 = - 12422.88 kJ / mol.
Which states of matter can form solutions?
A. Gas-liquid
B. Solid-solid
C. Solid-liquid
D. All of the above
Answers
Answer:
c
Explanation:
spongebob cheese pants
Answer:
I believe D
Explanation:
im not super sure but I'm pretttyyy sure
What is the total number of atoms in 0.20 mol of propanone, CH3COCH3?
NA = 6.022 x 1023
1.2 x 1022
1.2 x 1023
6.0 X 1024
6.0 x 1023
Answers
Answer:
1.2×10²³ atoms.
Explanation:
Data obtained from the question include:
Mole of propanone = 0.20 mole
Number of atoms of propanone =.?
From Avogadro's hypothesis, we understood that 1 mole of any substance contains 6.022×10²³ atoms.
This implies that 1 mole of propanone also contains 6.022×10²³ atoms.
Thus, we can obtain the number of atoms in 0.20 mole of propanone as illustrated below:
1 mole of propanone contains 6.022×10²³ atoms.
Therefore, 0.20 mole of propanone will contain = 0.2 × 6.022×10²³ = 1.2×10²³ atoms.
Thus, 0.20 mole of propanone contain
1.2×10²³ atoms.
The total number of atoms in 0.20 mole of propanone is 1.2×10²³, i.e. in given mole 1.2×10²³ atoms of propanone is present.
How many atoms present in one mole?In one mole of any substance 6.022 × 10²³ atoms of that substance will present, and this number is known by the name of Avogadro's number.
We have given moles of propanone = 0.20 mole
No. of atoms present in 0.20 mole of propanone = 0.20 × 6.022×10²³ = 1.2×10²³.
Hence, 1.2×10²³ atoms are present in given moles.
To know more about Avogadro's number, visit the below link:
https://brainly.com/question/10614569
Which of these products was made using a renewable resource?
O A. Paper plate
O B. Aluminum can
O C. Copper pan
O D. Plastic bag
Answers
Answer:
paper plate
Explanation:
A renuable source is a source that would replenish in ones lifetime. Trees make paper and grow in the span of a average human life.
List the elements that make up the compound copper sulfate
Answers
6H2 represents how many atoms of hydrogen?
Answers
Answer:
i think its 12, but i'm not 100% sure
Explanation:
How many grams of glucose are in 4.5x1023 molecules of glucose?:
Answers
Answer:
[tex].5865 \\ \\ \\ \\ \\ \5865[/tex]
[tex] \\ \\ 5865 \inf \inft \cos( \\ \) [/tex]
In order to help visualize an atom,a scientist may do which of the following.
Answers
Complete Question:
In order to help visualize an atom, a scientist may do which of the following?
Group of answer choices
A. Form a hypothesis.
B. Make a model.
C. Create a law.
D. Develop a theory.
Answer:
B. Make a model.
Explanation:
An atom can be defined as the smallest unit of matter and it retains all the chemical properties associated with the element.
Basically, atoms are the building block of matters and essentially comprises of three (3) fundamental particles which are protons, neutrons and electrons which typically determines the charge and mass of an atom.
In order to help visualize an atom, a scientist may make a model. Due to the limitations of various human inventions in the field of science, it has become practically impossible to get an image or a picture of an atom even through the use of a microscope because of its minute nature and owing to the fact that it is much smaller than the wavelength of visible light.
However, some notable scientists have created or developed models that aids in the understanding and visualization of atoms. These atomic models are;
1. Quantum mechanics model of atom.
2. John Dalton's atomic model.
3. Neil Bohr's atomic model.
4. Rutherford's model of the atom.
5. Thomson's model of the atom.
6. Plum pudding atomic model.
Mrs. Franklin loves teaching science and thinks about it all the time. While walking one day, she steps on a warm, fresh piece of used gum. The gum flattens and sticks to her shoe. When she lifts her foot, she sees long strings of gum between her shoe and the sidewalk. She thinks, "What a great demonstration of the properties of metals!"
What properties of metals would Mrs. Franklin most likely teach about with this demonstration?
conductivity and luster
ductility and malleability
malleability and reactivity
conductivity and ductility
Answers
Answer:
Ductility and Malleability
Explanation:
Pls mark my answer as brainliest
Answer:
the correct answer is Ductility and Malleability....(B)....
Explanation:
I took the test, hope this helps. also the person above me is correct
State the career function of mechanical engineering
Answers
Answer:
Mechanical engineers design power producing machines, like electric generators, internal combustion engines, and steam and gas turbines, also power using machines, such as refrigeration and air-conditioning systems. Mechanical engineers design other machines inside buildings, such as elevators and escalators.
Explanation:
Which of the following subatomic particles are found surrounding the nucleus and have a negative charge?
F negatrons
G neutrons
H protons
J electrons
Answers
Answer:
J electrons
Explanation:
Electrons are the negatively charged subatomic particles that surrounds the nucleus of an atom.
Electrons occupy the bulk volume of an atom. These particle was discovered by J.J ThomsonThey found orbiting the extra-nuclear space of every atom. The nucleus is made up of protons and neutrons.write the complete balanced equation for the decomposition of AI(CIO3)3.
Answers
Answer:
2AL(ClO3)3 → 2ALCl3 + 9O2
Explanation:
Is vacuole a plant or animals cell
Answers
Answer:
plant
Explanation:
let me know if correct
In lab you reacted 60 grams of propane (C3H8) with 13 grams of oxygen gas (O2). Your
reaction made 63 grams of water (H2O). The reaction is shown below:
How much carbon dioxide (CO2) is released into the air?
C3H8 + 5O2 ------> 3CO2 + 4H2O
10 g
73 g
120 g
1368
Answers
Answer:
120g
Explanation:
Based on the reaction, when 1 mole of propane and 5 moles of oxygen react, 3 moles of CO2 and 4 moles of H2O are produced. The ratio of production is 3 moles of CO2 per 4 moles of H2O.
Thus, we need to convert mass of water to moles using its molar mass:
Moles H2O (Molar mass: 18g/mol):
63g H2O * (1mol / 18g) = 3.5 moles H2O
Converting to moles of CO2:
3.5 moles H2O * (3 moles CO2 / 4 moles H2O) = 2.625 moles CO2
Mass CO2 (Molar mass: 44g/mol):
2.625 moles CO2 * (44g / mol) = 115.5g of CO2 are released
120g1. Why is soil erosion relatively less in dense forests as compared to barren, open fields?
Answers
Because the deep roots of big trees hold the soil and don't let it slip away simply by rain or wind.
Answer:
the roots of the trees keep the soil in place opposed to a barren landscape that has little to no plants to keep the soil in place
hope this helps (╹ڡ╹ )
When 2.5 moles of N2 react according to the reaction below, how many moles of NH3 will be produced?
N2 + 3 H2 --> 2 NH3
O 2.5 moles NH3
0 2.0 moles NH3
O 1.3 moles NH3
5.0 moles NH3
Answers
Answer:
5 mol
Explanation:
by stoichiometry
nN2/1=nNH3/2
2.5=nNH3/2
nNH3=2.5×2
nNH3= 5 mol
Answer: I got 5.0 moles
Explanation:
brainly is so boring like upgrade it to be better or something
Answers
Answer:
ya same here i hope so btw
Answer:
my guy, this is for school. school is boring as it is, be grateful they even provide the service they provide. cause i know for a fact if you if your using brainly, you also need help. maybe you need to upgrade to the tutor plan, someone like you needs hands on learning.
Explanation:
common sense
What can cause a mutation when the cell copies its DNA?
All of the above
Exposure to chemicals
Exposure to radiation
Errors
Answers
Answer:
exposure to radiation i think
Explanation:
If the momentum of a car is reduced by half, assuming mass did not change, what must also have been reduced by half?
Answers
Answer:
Velocity is halved
Explanation:
Momentum is contingent on mass and velocity. The quantity of motion in a body is called the momentum of the body.
Momentum = mass x velocity
Now, if mass does not change and momentum is reduced by half, it suggests that the velocity was reduced by half.
Velocity is directly related to momentum.
12 Ethene gas, CH is completely burned in excess oxygen to form carbon dioxide and water
The equation for this exothermic reaction is shown.
CH 30, - 200, 2H,0
The table shows the bond energies involved in the reaction
bond
bond energy
(kJ/moly
614
413
C-C
CHH
0 0
СО
495
799
O-H
467
What is the total energy change in this reaction?
A-954 kJ/mol
B-1010 kJ/mol
C-1313 kJ/mol
D-1359 kJ/mol
Answers
Answer:
12 Ethene gas, CH is completely burned in excess oxygen to form carbon dioxide and water
The equation for this exothermic reaction is shown.
CH 30, - 200, 2H,0
The table shows the bond energies involved in the reaction
bond
bond energy
(kJ/moly
614
413
C-C
CHH
0 0
СО
495
799
O-H
467
What is the total energy change in this reaction?
A-954 kJ/mol
B-1010 kJ/mol
C-1313 kJ/mol
D-1359 kJ/mol
Explanation:
thats all you said
If 150 G of war started burning 300 G of where as was left behind how many grams of CO2 gas is released
Answers
Answer:
geruow0irghvn3p0unhie0ghik
Explanation:
how many sig figs are in 0.0093
Answers
Answer:
there are two significant figures
Explanation:
Answer:
there are two
Explanation:
because the zeros dont count
Loose sugar dissolves much faster than a sugar cube because loose sugar?
A. Has greater surface area
B. Has less kinetic energy
C. Has a higher temperature
D. Has greater surface tension
Answers
Loose sugar dissolves much faster than a sugar cube because loose sugar (a) has greater surface area.
When any solute dissolve in ground into small pieces it dissolve faster in solvent than large pieces because in small ones the large surface area is exposed into solvent.
With the greater surface area is exposer, the contact in between the solute particles and the solvent is more. this is the reason that loose sugar cube dissolve much faster than sugar cube as sugar cube has less surface area in contact with solvent.
Thus, Loose sugar dissolves much faster than a sugar cube because loose sugar (a) has greater surface area.
To learn more about solubility here
https://brainly.com/question/8685116
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what is the name of the compound represented by the formula SI2BR6
Answers
Answer:
Disilicon Hexabromide
Explanation:
A compound H2O is named – Dihydrogen monoxide. Its common name is of course water. A compound of Si2Br6 is named – Disilicon Hexabromide. 2.
Deshawn carefully mixes the substances together in an Erlenmeyer flask. When mixed together, the substances undergo a change. Afterward, Mimi measures the mass and finds it to be 10 grams. Mimi and Deshawn repeat this experiment twice more with the same results. What is the most likely explanation for this data?
Answers
I need help with it too
what is the
difference between ice
and water vapour.
Answers
Answer:
Nothing. I guess ice vapor is a solid and water vapor is a liquid if nothing isn't an option, but that makes no sense.
Explanation:
K20
Molar Mass (g/mole)
2(39.10) + 16.00 = 94.20 g/mole
Moles
5.85 moles
Mass (grams)
Particles
Answers
Answer:
yes
Explanation:
that is the answer
1.) Fluorite has a glassy luster and a white streak. It's an inorganic solid with a chemical formula of CaF2 CaF2
A: It is inorganic
B: It is a solid
C. It can be defined by a chemical formula
D. All of the above
Answers
Answer:
D. All of the above
Fluorite is inorganic solid and can be defined by its chemical formula. Thus option D is correct.
What is chemical formula?Chemical formula is defined as a chemical elements numbers and symbols are used to provide information about the chemical quantities of atoms that make up a certain chemical compound or molecule.
It is also defined as any of numerous statements of a chemical compound's content or structure.
There are mainly three types of chemical formulas.
Empirical formulaMolecular formulaStructural formulaThus, fluorite is inorganic solid and can be defined by its chemical formula. Thus option D is correct.
To learn more about chemical formula, refer to the link below:
https://brainly.com/question/11995171
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Three friends were kicking soccer balls at a neighborhood field. Three soccer balls were rolling across the field. The black soccer ball has less mass than the blue and orange balls, which have equal mass. All three soccer balls were kicked by one of the friends, but not all from the same direction. Use the information in the diagram to answer.
Which soccer ball(s) experienced the strongest force? How do you know?
A. All three soccer balls experienced the same force because they changed speed by the same amount.
B the orange soccer ball it has more mass and the fastest ending speed
c. the blue soccer ball it takes a stronger force to slow down a more massive object than to speed it up.
D the blue and orange soccer balls they have more mass than the black soccer ball changed speed by the same amount
Answers
Answer: d :The blue and orange soccer balls; they have more mass than the black soccer ball, but changed speed by the same amount.
Answer:
the answer is d
Explanation:
Which part of the atom can be transferred from one atom to another to form
ions?
a. Protons
b. Neutrons
c. Valence Electron
d. Nucleus
Answers
Answer:
Explanation: Valance Electron