Which of the following is equal to 0.500 mol?
A. 32.0 g O(2)
B. 103.6 g Pb
C. 36.0 g H(2)O
D. 14.0 g CO(2)
help please
Answers
Answer:
B
Explanation:
Think about the molar masses of each.
O2 -> 32 g
So 32 g = 1 mol.
Pb -> 207.2 g
So 103.6 g = .5 mol!
H2O -> 18 g
So 36 g = 2 mol.
CO2 -> 44 g
So 14 g = .3 mol
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3) This statement is True.
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can someone help me please?
use the two given problems and rewrite them into hypotheses.
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hypothesis-
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if there are more mosquitoes, then there will be more disease spread in a summer
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Describe how a pure sample of copper ( II ) nitrate crystals can be prepared using recycled copper wire
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Explanation:
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There are several characteristics of chemical changes like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.
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During chemical changes atoms are rearranged and changes are accompanied by an energy change as new substances are formed.
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Answer:
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What is similar about how floodplains and alluvial fans form? What is different?
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an alluvial fan is formed as a stream begins to cut into its floodplain. a delta forms in mountainous areas, alluvial fans on flat land. a delta forms while entering water, an alluvial fan forms on dry land.
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Answer:
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The example of the Gulf Coast dead zone suggests that nonliving factors, such as the amount of nutrients available, significantly affect the survival of organisms in their environment.
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can someone help me with this please?
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Answer:
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NEED ASAP
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Answer:
Generally, if the temperature is increased, the solubility of a solid solute increases
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Answers
Answer:
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This is the molecular formula for Coca Cola :-)
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[CO]
o kor" (CO2)
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o KooTO]
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o Ker-1002]
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I hope that this helps! Best of luck!
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Hello..!
There are 2 main types of ions one is an atom where the electrons are shared between the atoms. the other is an electron where one atom loses an electron to become a neutral in a charged ion, and the other atom gains the electron to become a charged lon anion.
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Ions with a positive charge are known as cations. Those that are negatively charged are called anions.
¿Doubts? in the comments Greetings.
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The standard reduction potential for the half-reaction of Be^2+ + 2e^- -> Be is given as E^0 = 3.83 V.For the half-cell Hg^2+ | Hg, the standard reduction potential is not provided in the given information. To calculate the electric potential for the voltaic cell, we need the reduction potential for the Hg^2+ | Hg half-cell.
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WILL MARK THE BRAINLEST
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Answer:
a. Hh, hh
b. hh
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d. 50%