5. Given the following equation: 8 Fe S8 8 Fes, what mass of iron is needed to react with16.0 grams of sulfur? How many grams of FeS are produced?
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Related Questions
Which is the name of C5H12?n-heptane n-butane All of these n-pentane n-hexane
What is the answer to this question?
Una muestra contiene 160 g de bromo y 2 g de hidrógeno. Otra muestra de bromuro de un metal contiene 4 g de bromuro y 1 g de metal. Halla el peso equivalente del metal.
According to Bohr's model, what can be said of the amount of energy that an electron absorbs when it is excited compared to the amount of energy that it releases when it returns to ground state?A. The amount of energy that is absorbed is greater than the amount of energy that is released. B. The amount of energy that is absorbed is the same as the amount of energy that is released. C. The amount of energy that is absorbed is less than the amount of energy that is released.
B. Produce unchanging, absolute answers
C. Give explanations for natural events
D. Understand patterns
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b. linear growth
c. fertility
d. biotic growth
User: As a population reaches its carrying capacity, there is an increase in competition for
a. food.
b. shelter.
c. mates.
d. All of the above
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Answer:
1. A
2. D
Explanation:
1. If a population is left unrestricted, meaning it is not limited to anything, then the population will continue to increase exponentially due to there being no limits.
2. If a population is limited, and it has reached its carrying capacity, then the essential needs of life are being competed for. Things like food, shelter, and mates are now a limited resource, and hence the option would be "all of the above".
As a population reaches is carrying capacity there is an increase in competition for All of the above.
Hope I helped.
Answers
Answer:
Phosphorus cycle
Explanation:
Biogeochemical cycle, any of the natural pathways by which essential elements of living matter are circlated.
There are four types of biogeochemical cycle, they are ; water cycle,carbon cycle,nitrogen cycle and phosphorous cycle
Carbon cycle is the cycle in which photosynthesis and cellular respiration take place.
Water cycle involves transpiration.
Nitrogen cycle Is the cycle that is dependent upon bacteria for nitrogen fixation and denitrification.
Phosphorus cycle is one of the slowest biogeochemical cycle. It does not stay in the atmosphere, because it is normally in a liquid state at room temperature. It does not include the atmosphere.
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The freezing point of lead is 621.5 fahrenheit (327.5 celsius). The freezing point is the temperature at which a substance transitions from its liquid to its solid state, typically under normal atmospheric pressure.
The temperature at which a substance changes from its liquid phase to a solid phase, normally under normal atmospheric pressure, is referred to as the freezing point. It is a physical attribute of matter. This transition takes place when the attraction interactions between the substance's molecules outweigh their kinetic energy, leading the molecules to organise themselves in a predictable way and create a solid lattice. The nature of the substance, pressure, and contaminants in the substance are some of the elements that affect the freezing point. Different intermolecular forces of varying types and strengths give different substances different freezing points. Thefreezing pointof lead is 621.5 fahrenheit (327.5 celsius).
To know more about freezing point, here:
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(3) The volume of each atom decreases.
(4) The frequency of collisions between atoms increases.
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Answer is: (4) The frequency of collisions between atoms increases.
The average kinetic energy of molecules depends on the temperature.
As temperature increases, molecules gain more energy from surrounding and move faster and have more collisions.
Kinetic energy (standard unit is the joule J) depends on speed of the molecule.
Charles' Law (The Temperature-Volume Law) - the volume of a given amount of gas held at constant pressure is directly proportional to the Kelvin temperature:
V₁/T₁ = V₂/T₂.
When temperature goes up, the volume also goes up.
Hope this helps~
Reactant A contains 85.1 J of chemical energy. Reactant B contains 87.9 J of chemical energy. Product C contains 38.7 J of chemical energy. If the reaction absorbs 104.3 J of chemical energy as it proceeds, how much chemical energy must product D contain? Explain your answer.
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Answer: 238.6 J
Explanation:
According to the law of conservation of energy, energy can neither be created nor be destroyed. It can only be transformed from one form to another.
Endothermic reactions are those in which heat is absorbed by the system and thus the energy of products is higher than the energy of reactants.
For the given reaction:
Energy of A = 85.1 J
Energy of B = 87.9 J
Energy on reactant side = Energy of A + Energy of B + Energy absorbed 85.1 + 87.9 + 104.3 = 277.3 J
Energy on reactant side = Energy on product side = 277.3 J
Energy on product side = Energy of C + Energy of D
277.3 J = 38.7 J + Energy of D
Energy of D = 238.6 J
Thus chemical energy product D must contain is 238.6 J
The law of conservation of energy states that energy is not created or destroyed during chemical reactions. The total amount of energy in the reactants, plus the energy absorbed during the reaction, must be equal to the total energy of the products.
Product D contains (85.1 J + 87.9 J + 104.3 J) – 38.7 J = 238.6 J of chemical energy.