Answer:The standard Gibbs energy change at 300K for the reaction 2A⇔B+C is 2494.
Explanation:
ΔG = free energy at any moment.
ΔGo = standard-state free energy.
R is the ideal gas constant = 8.314 J/mol-K.
T is the absolute temperature (Kelvin)
lnQ is natural logarithm of the reaction quotient
Worth many points (timed test)
A 54.2 g sample of an unknown metal is heated to 48.00 degrees Celsius.
It is then placed in a coffee-cup calorimeter filled with water.
The calorimeter and the water have a combined mass of 183.1 g and an overall specific heat of 1.34 cal/g•°C.
The initial temperature is 10.2°C when the metal is added.
The system reaches a final temperature of 23.00 °C.
(show work)
Answer:
2.335 J/g*degrees celcius
Explanation:
help please don’t understand
hello sister the answer is very easy it is 2 miles of oxygen
in which way are sugars usually transported throut a pine tree
Organisms that get energy by eating dead organisms are called *
scavengers
omnivores
herbivores
decomposers
Answer:
The Answer is A. Scavengers
Identify at least four limiting factors in the local ecosystem and their impact on native populations.
4 limiting factors could be water, space, pollution, and access to mates, could all be factors in limiting the native population. Water, could be affected by pollution, and this would remove water, which means that no living things would be able to survive, or at the best be hindered in its growth. Space could be removed by deforestation, or simple water rising, and this could kill off the population, thus removing mates for the population. (hope this helped, if it did, please consider marking brainiest)
The availability of food, water, shelter and diseases are the four limiting factors in the local ecosystem and their impact on native populations.
What are the limiting factors?The limiting factors such as availability of food, water, shelter and diseases can change animal and plant populations because these factors has a direct impact on the organisms and the organisms is depend on these factors for their survival.
So we can conclude that availability of food, water, shelter and diseases are the four limiting factors in the local ecosystem and their impact on native populations.
Learn more about population here: https://brainly.com/question/25630111
2Ag (s) + H2S(s) → Ag2S(s) + H2(g)
Oxidation Half-Reaction:
Reduction Half-Reaction:
Answer: Oxidation half: [tex]2Ag\rightarrow 2Ag^++2e^-[/tex]
Reduction half: [tex]2H^++2e^-\rightarrow H_2[/tex]
Explanation:
Oxidation-reduction reaction or redox reaction is defined as the reaction in which oxidation and reduction reactions occur simultaneously.
[tex]2Ag(s)+H_2S(s)\rightarrow Ag_2S(s)+H_2(g)[/tex]
Oxidation reaction is defined as the reaction in which a substance looses its electrons. The oxidation state of the substance increases.
Oxidation half: [tex]2Ag\rightarrow 2Ag^++2e^-[/tex]
Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.
Reduction half: [tex]2H^++2e^-\rightarrow H_2[/tex]
Which states of matter change shape when moved? Which states of matter change shape when moved?
Answer:
Gas and Liquids
Explanation:
1 point
1. A balloon has 1.55 L of air in it exerting a pressure of 105.2 kPa. At
constant temperature, if the pressure increases to 122.0 kPa, what is the
volume?
Answer:
[tex]V_2=1.34L[/tex]
Explanation:
Hello there!
In this case, since this problem is describing how pressure changes as a function of volume and vice versa, it is possible recall the Boyle's law as shown below:
[tex]P_1V_1=P_2V_2[/tex]
Whereas we are asked to compute the volume when the change is pressure is performed (V₂); thus, we proceed as follows:
[tex]V_2=\frac{P_1V_1}{P_2}\\\\V_2=\frac{1.55L*105.2kPa}{122.0kPa}\\\\V_2=1.34L[/tex]
Best regards!
A student draws the model shown below. Which of these best compares the conditions at Location X and Location Y?
Answer:
Explanation:
You have to use formula b to your answer
How many grams of Li are present in 3.4x1026 atoms of Li?
Answer:
1.0534×10²⁷ grams
Explanation:
multiplying the number of atoms with Avogadro's constant.
Using the figure, angels p and w are example of
Answer :)
Answer:
D
Explanation:
we just did this in class last week haha i know my math :)
Shauna is looking over her family history for heart disease and thought about the easiest way to represent what she discovered. What model is used to show the pattern of traits that are passed from one generation to the next in a family?
dichotomous key
pedigree chart
line graph
punnett square
Dipole-dipole interactions are (weaker than, stronger than, equal to) hydrogen bonds.
Answer and Explanation:
Dipole-Dipole interactions are weaker than hydrogen bonds.
Hydrogen bonds are a form of dipole-dipole interactions, being the strongest form of dipole-dipole interactions.
#teamtrees #PAW (Plant And Water)
Which of the following are parts of the Nervous System?
Choose all the apply
Nerves
Brain
Heart
Skin
Spinal Cord
Lungs
Answer: Nerves, Brain and spinal cord
Explanation:the other choices are either part of the cardiovascular system or the respiratory system
Question is on the image
Answer:
It has direction and size.
Explanation:
The way I learned it was that vectors have direction and Magnitude. Magnitude is just the length of the vector. So you are right.
15. _____ is the breakdown of rocks into smaller particles by natural processes.
A. Deposition
B. Weathering
C. Erosion
Answer:
B
Explanation:
Weathering is the physical and chemical breakdown of rock at the earth's surface. ... The physical breakdown of rock involves breaking rock down into smaller pieces through mechanical weathering processes. These processes include abrasion, frost wedging, pressure release (unloading), and organic activity.
what are things than can circulate
3Ba(C2H3O2)2 + 2K3PO4 ⟶ Ba3(PO4)2 + 6KC2H3O2
If 4.36 mol of potassium phosphate react, how many grams of barium phosphate are produced?
Hello Mistyann!
First you need to know amount of barium phosphate is
Half of potassium phosphate, also 2.18 mol.
Molar mass of Barium phosphate is 3·137.2 + 2·(30.97+4·16) g/mol
You can calculate it yourself dear.
Now mass is amount of substance · molar mass.
It has been an honour to teach you, dear,
God bless!
Find the net force on a rope which is being pulled by 2 groups of
students. The blue team is pulling with a force of 1500 N to the west and
the orange team is pulling with a force of 1300 N to the east.
Answer:
200 N to the west b/c we have 1500 to west and
1300 N to east . the forces have a opposite direction.
thus we add the force. and we gain 200N force.
Exothermic or Endothermic ~N2(g) + 2 O2(g) → 2 NO2(g) ΔH= +67.6 kJ
Explain why?
Answer:
endothermic
Explanation:
Because the value of the heat of reaction is positive .
How many grams are found from 2 moles of glucose C6H1206?
Answer:
360g
Explanation:
Hope it helps you!
In an ionic bond, which
category of elements are giving away
electrons?
Ionic bonds form only between metals and nonmetals. That's because metals “want” to give up electrons, and nonmetals “want” to gain electrons. It takes energy to remove valence electrons from an atom and form a positive ion
Answer:
Ionic bonds form only between metals and nonmetals. That's because metals “want” to give up electrons, and nonmetals “want” to gain electrons. It takes energy to remove valence electrons from an atom and form a positive ion. Energy is released when an atom gains valence electrons and forms a negative ion.
hope it is helpful u in understandingplz mrk it as brainliest.This equation is balanced.
C + S8 -4CS2
True
False
False.....................
What would happen if you mixed Zinc and Sulfur thoroughly,and you put a hot metal rod to it?
Answer:
A violent reaction will occur and zinc sulphide is formed as a product
How do mountains affect the climate of a region?
(Giving brainlist for a summary and correct answer)
Answer:
Mountains can have a significant effect on rainfall. When air reaches the mountains, it is forced to rise over this barrier. As the air moves up the windward side of a mountain, it cools, and the volume decreases. As a result, humidity increases and orographic clouds and precipitation can develop
Answer:
Mountains effect them with contact
Explanation:
They are always pushing eachother and crash
Renewable energy resources include *
O all of the above
O moving water
O biomass
O wind
how is salt obtained or manufactrured
Answer:
There are three methods used to produce salt: solar, evaporation and rock mining.
Explanation:
2. This chart describes several characteristics of human civilizations.
(6.04)
Characteristics of Human Civilizations
Stable Food Supply
?
Developed Systems of Writing
Which phrase best completes this list?
A. Created militaries
B. Complex social structures
C. Use of fire for protection
D. Declining population
Why is there a hole in the ozone layer? What do you think the consequences of that hole are?
Answer:
There is a ozone layer because of the special atomphere and chemical conditions that takes place there. I think the consequences of that home area is the very low winter temperatures.
Answer:
There is a hole in the ozone layer because of the pollution on earth. Because of that the UV rays are easily entering the earth through that portion. The consequences of this can be cancers, global warming and disastrous storms.
plz mark as brainliest
Which sentence in paragraph 1 explains what Americans are doing to help the environment?
O a. Today, 60 percent of us believe that climate change is a serious threat.
O b.In 1980, coal, oil and gas made up 89 percent of the energy we used.
0
c. 90 percent of us have recycled in the last year.
O d. Sometimes you can even find low belief in climate change.