Answer:
When a system is at equilibrium, the process is not spontaneous at either direction.
Explanation:
The process is not spontaneous at either direction , when a system is at equilibrium ΔG = 0, because -
We know that a negative ΔG indicates a forward-moving phase that is random.
We already know that a positive ΔG implies a non-spontaneous phase going forward.
Thus , here ΔG = 0, so the process is not spontaneous in either direction.
what is elimination reaction
the exact position of the electrons of an atom cannot be determined because they are in constant ___
Identify the labeled structures.
A word which describes a solution which is more dilute than cytoplasm and would cause a cell to swell with water
Answer:
A hypertonic solution has increased solute, and a net movement of water outside causing the cell to shrink. A hypotonic solution has decreased solute concentration, and a net movement of water inside the cell, causing swelling or breakage.
Explanation: hope this helps :) sorry if it's wrong :(
(giving brainiest)
brainly will ban you if you answer with a wrong absurd answer or copied answer if the question has over 50 points in it!
Answer:
Mars and jupiter
Explanation:
Similarities
-both circle the sun
-both have atmospheres
- both have moons
Differences
-mars is red and rocky
-jupiter is the largest planet
-mars is most like our earth
- jupiter has rings
What do you think the biggest risk with genetic engineering is?
Answer:
Harmful toxins from crops have been found in peoples blood.
GM crops can cause allergic reactions in crops
Its dangerous to mess with nature this way when it should be a natural thing.
Explanation:
I'm in both Biology and Chemistry so I know a lot!
A gas has a volume of 590 mL at a temperature of –55.0°C. What The temperature be if the volume expands to 15L at constant pressure?
Answer:
5542.37 K
Explanation:
Given that,
Initial volume, V₁ = 590 mL
Initial temperature, T₁ = -55°C = -55 + 273 = 218 K
Final volume, V₂ = 15 L
We need to find the final temperature of the gas. The relation between the volume and the temperature is given by :
[tex]\dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}[/tex]
Where
T₂ is final volume of the gas
Put all the values in above relation,
[tex]T_2=\dfrac{V_2T_1}{V_1}\\\\T_2=\dfrac{15\ L\times 218\ K}{590\times 10^{-3}\ L}\\\\T_2=5542.37\ K[/tex]
So, the required temperature is equal to 5542.37 K.
plz someone help me i dont get this and i need to finish this
Answer:
The height of A is 900
Explanation: Beside A, there is a number which explains what the height is so the answer is A.
Choose the larger atom from each of the following pairs.
a. Between Se and Te, the larger atom is __________
b. Between I and Kr, the larger atom is ________
c. Between P and Pb, the larger atom is _______
d. Between Ge and Br, the larger atom is___________
e. Between G e and B r, the larger atom is _________
1. Se
2. Kr
3. S
4. C
Answer:
C, between P and Pb, largest atom is Pb
The larger atom from each of the following pairs is as,
a. Between Se and Te, the larger atom is Te .
b. Between I and Kr, the larger atom is I .
c. Between P and Pb, the larger atom is Pb .
d. Between Ge and Br, the larger atom is Ge .
e. Between G e and B r, the larger atom is Ge .
How atomic size of elements vary in periodic table?In periodic table, on moving from top to bottom in a group the atomic size of elements increases while on moving left to right in a period the atomic size of elements decreases.
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Please help me
5. Where is potential energy decreasing?
А B C D
Answer:
D
Explanation:
I believe it is D. your kinetic energy would be at b. A, the cart would be going at a constant rate, because there is no hill or steep slope.
send a pic of the question
Part A
Choose the paramagnetic species from below.
O He
O Te
O T14+
O All of the above are paramagnetic.
None of the above is paramagnetic.
Answer:
o He
Explanation:
basyshsiz0qnshshhsjzz
Which of these rules are applicable for naming covalent compounds?
Photosynthesis in a plant is an example of which characteristic of living things?
1. Reproduction
2. Response to the environment
3. Growth and development
4. Ability to obtain and use energy
Answer:
4. Ability to obtain and use energyWhich category is our Sun located?
Question 2 options:
White Dwarfs
Supergiants
Giants
Main Sequence
Answer:
main sequence is the correct answer of your question
The sun is located in the main sequence in the solar system of the universe. Option D is correct.
What is a solar system?The solar system is a gravitational bound system that consists of some planets like the moon, earth, Neptune, venus, mars, mercury, Saturn, and Uranus these revolve around on the orbit of space.
The sun is the center of all the planets that is all planets revolve around the sun only as it is the biggest star for all the planets and the majority of the mass of the planet is the sun only.
Therefore, Option D is the correct sun located in the main sequence in the solar system of the universe.
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what is the first element in the periodic table?
Answer:
the first element on the table is Hydrogen
Helpppp me pleaseeee now I’ve been struggling so bad w this
Answer:
I don't know what the passage says, but I feel like the most logical conclusion is D or the last one.
Explanation:
Answer:
D! Hope this helps! Figured id help with all of ur questions!
Explanation:
Im a wiz at science! ;)
When the Sun and Moon are aligned in the same direction, the tides are higher than normal, known as________
Answer:
spring tides is the correct answer of your question
A 16.4 g sample of calcium chloride is dissolved in enough water to make 750.0 mL of solution. Calculate the molarity of calcium chloride in this solution. plz help!!!
The molarity is an important method to calculate the concentration of a solution. The molarity of calcium chloride of 16.4 g in 750.0 mL of solution is 0.196 mol L⁻¹.
What is molarity?The molarity of a solution is defined as the number of moles of the solute present per litre of the solution. It is mainly employed in calculating the molarity of a binary solution. It is represented as 'M' and unit is mol L⁻¹.
The equation used to calculate the molarity is given as:
Molarity = Number of moles of the solute / Volume of the solution in litres
Molar mass of CaCl₂ = 110.98 g/mol
Given mass = 16.4 g
Number of moles = 16.4 / 110.98 = 0.147
750.0 mL = 0.75 L
Molarity = 0.147 / 0.75 = 0.196 mol L⁻¹
Thus the molarity is 0.196 mol L⁻¹.
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What is the percent yield of LiCl if I produced 30.85g LiCl and my theoretical yield was calculated to be 35.40g LiCl?
Answer:
87.15%
Explanation:
To find percent yield, we can use this simple equation
[tex]\frac{Actual}{Theoretical} *100[/tex]
Where "Actual" is the amount in grams actually collected from the reaction, and "Theoretical" is, well, the theoretical amount that should have been produced.
They give us these values, so to find the percent yield, just plug the numbers in.
[tex]\frac{30.85}{35.40} *100\\\\ =87.15[/tex]
So, the percent yield is 87.15%
An easy trick to remember how to do this is just to divide the smaller number by the bigger number and move the decimal back two places. If you have a percent yield greater than 100%, something is wrong in the reaction.
Please please help me
Answer:
I agree with Omar because it depends on what the charge of the object and magnet is. If the magnet is negative and the object is positive, they will pull together. If the magnet is negative and the object is negative then they will pull apart.
Explanation:
Determine the number of atoms in 3.14 g gold
How many moles of Ag can be obtained from 2.77 moles Cu using the following
balanced reaction?
2AgNO3
+ Cu
Cu(NO3)2
+ 2Ag
Answer:
2.77×2= 5.4 mol Ag can be obtained
help me please i beg u
Answer:
none of the above
Explanation:
how many moles are in 83 particles of sodium chloride?
Answer:
there are 1.4201927800478769 moles in 83 particles of sodium chloride. or 1.42 for short.
Explanation:
ASAP PLEAE ANSWER I NEED HELP ITS OVERDUE what’s the definitions?
Answer:
Eclipse: 3. To vanish
Corona: 2. During a solar eclipse, the moon covers the sun, a small ring of fire is visible around the edge
Umbra: 4. The inner, darkest, cone-shaped shadow is
Penumbra: 1. The outer, larger, lighter shadow
Answer:
I found 3. 2. 4. and 1.
Explanation:
I got my answer from this website https://eclipse.aas.org/eclipse-america/eclipse-glossary
Which of the following is a scientific question about the planet Jupiter?
A. Why is Jupiter a fascinating planet to observe?
B. How often is Jupiter visible in the nighttime sky?
O C. Does the big red spot on Jupiter look like a giant eye?
O D. Why was Jupiter named after a Roman god?
If 8 moles of magnesium chloride react with enough aluminum, how many moles
of aluminum chloride are produced?
If 8 moles of magnesium chloride react with enough aluminum then the amount of aluminum chloride produced is 5.3 mole.
What is aluminum?Aluminum is defined as a chemical substance with the atomic number 13 and the symbol Al. Aluminum has a density that is around one third that of steel, which is lower than that of most common metals. It has a strong affinity for oxygen, and when exposed to air, creates a protective oxide coating on the surface.
3 moles MgCl2and 2 moles Al will produce 3 moles Mg and 2 moles AlCl3.Therefore, if 8.0 moles of MgCl₂ react, the amount of ammonium chloride that may hypothetically be created can be calculated using the mole ratio between MgCl₂ and AlCl₃ .
8.0 mole MgCl₂ x 2 mole AlCl₃ / 3mol MgCl₂
= 5.3 mole AlCl3
Thus, if 8 moles of magnesium chloride react with enough aluminum then the amount of aluminum chloride produced is 5.3 mole.
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give the n for the following orbitals
a. 3p
b. 4f
Answer:
a. n = 3
b. n = 4
Explanation:
n is just the number in front of the orbital, as n represents the energy level of the orbital.
Answer:
1. n=3
2.n=4
Explanation:n is the number infront of the orbital that representgsthe energy level
Hydrogen burns exothermically in oxygen
What is the energy given out during the reaction: 2H2 + O2 -> 2H2O?
Given:
H-H bond: 436 kJ/mol
O=O double bond: 498 kJ/mol
O-H bond: 464 kJ/mol
A. -3226 kJ/mol
B. -884 kJ/mol
C. -486 kJ/mol
D. -442 kJ/mol
Answer:
C. -486 kJ/mol
Explanation:
Enthalpy change equals bonds broken (reactants) minus bonds formed (products)
Bonds broken = 2 H-H bonds + 1 O=O double bond = 2(436) +498 = 1,370 kJ/mol
Bonds formed = 4 O-H bonds = 4(464) = 1,856 kJ/mol
Bonds broken - bonds formed = 1,370 - 1,856 = -486 kJ/mol