Which of the following is the smallest volume? A. 2500 mL B. 250 cm3 C. 2.5 x 10-2 L D. 25 m3
Answers
Final answer:
Among the given figures, 2.5 x 10-2 L (or 25 mL when converted to milliliters) is the smallest volume.
Explanation:
The student is asked to compare and determine the smallest volume between 2500 mL, 250 cm3, 2.5 x 10-2 L, and 25 m3. First, let's convert all volumes into a common unit, the milliliter (mL).
- 2500 mL = 2500 mL (already in mL),
- 250 cm3 = 250 mL (since 1 cm3 equals 1 mL),
- 2.5 x 10-2 L = 0.025 L = 25 mL (since 1 L equals 1000 mL),
- 25 m3 = 25 x 1,000,000 L = 25 x 1,000 x 1,000,000 mL = 25,000,000,000 mL.
From this comparison, we can see that 2.5 x 10-2 L or 25 mL is the smallest volume among the given figures.
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Answers
Considering the reaction stoichiometry, 22.2 moles of Fe(OH)₂ are required to produce 7.4 moles of Fe₃(PO₄)₂.
The balanced reaction is:
3 Fe(OH)₂ + 2 H₃PO₄ → Fe₃(PO₄)₂ + 6 H₂O
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
- Fe(OH)₂: 3 moles
- H₃PO₄: 2 moles
- Fe₃(PO₄)₂: 1 mole
- H₂O: 6 moles
Then you can apply the following rule of three: if by reaction stoichiometry 1 mole of Fe₃(PO₄)₂ requires 3 moles of Fe(OH)₂, 7.4 moles of Fe₃(PO₄)₂ require how many moles of Fe(OH)₂?
amount of moles of Fe(OH)₂= 22.2 moles
Finally, 22.2 moles of Fe(OH)₂ are required to produce 7.4 moles of Fe₃(PO₄)₂.
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Answer:
22.2 mol
Explanation:
B. The distance an object moves over time
C. The time it takes an object to move a certain distance
D. The force that distance makes
SUBMIT
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Answer:
A:force times an object displacement
Explanation:
Featured snippet from the web
A force is said to do work if, when acting, there is a displacement of the point of application in the direction of the force. ... Work transfers energy from one place to another, or one form to another. The SI unit of work is the joule (J).
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Final answer:
A solution can exist in three phases: solid, liquid and gas, depending on the temperature and pressure. The pH of the solution can also change based on the nature of ions present in it. Understanding the nature and properties of solutions is crucial for many chemical reaction processes.
Explanation:
A solution can exist in three phases depending on the temperature and pressure, which are: gas, liquid, and solid. These are depicted in a phase diagram (an illustrative depiction that shows the states of a substance under different conditions of temperature and pressure).Consider the phase diagrams for a pure solvent and a solution. When a nonvolatile solute is dissolved in a solvent, a solution is formed. These states coexist and are in a state of thermal equilibrium at specific combinations of pressures and temperatures.
In addition to the physical phase, the pH of the solution can also be considered as a 'phase.' The pH can decrease, increase, or even show a pattern of increase and then decrease depending on the nature of ions present in the solution.
Solutions are crucial to life-sustaining processes as well as other chemical reaction processes. It's important to know the nature of solutions and factors determining its formation and properties for understanding various biological, geological and industrial processes.
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Answer:
?
Explanation:
What are the statements? You've given the passage but not the statements
alpha decay because alpha particles have a large mass
beta decay because beta particles can have negative charge
alpha decay because alpha particles have two protons and two neutrons
gamma decay because gamma rays are photons
Answers
The kind of decay which has occurred is: C. alpha decay because alpha particles have two protons and two neutrons.
What is an alpha decay?
An alpha decay refers to a type of radioactive decay in which the atomic nucleus of a radioactive element emits an alpha particle (two protons and two neutrons), thereby, producing chemical elements with a different atomic nucleus.
Basically, this isotope has a mass number that is decreased by four (4) and an atomic number (protons) that is decreased by two (2), which is an atom of Helium (He).
Read more on alpha decay here: brainly.com/question/23303931
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