Answer:
The mass of sodium reacted is 138 grams
Explanation:
Firstly, the chemical reaction should be represented with a balance chemical equation. The chemical equation can be written as follows.
Na = sodium
Cl2 = chlorine gas
Na + Cl2 → NaCl
The balanced equation is
2Na(s) + Cl2(g) → 2NaCl(aq)
Atomic mass of sodium = 23 grams per mol
Atomic mass of chlorine = 35.5 grams per mol
From the chemical equation the molar mass are as follows
Sodium = 2 × 23 = 46 grams
Chlorine = 35.5 × 2 = 71 grams
Sodium chloride = 2 × 23 + 2 × 35.5 = 117 grams
if 46 grams sodium reacted to produce 117 grams of sodium chloride
? grams of sodium react to produce 351 grams sodium chloride
grams of sodium reacted = (351 × 46)/117
grams of sodium reacted = 16146/117
grams of sodium reacted = 138 grams
Answer:
0.138 kg of Na.
Explanation:
Equation of the reaction
2Na(aq) + Cl2(g) --> 2NaCl(s)
By stoichiometry, since 2 moles of Na reacted with 1 mole of Cl2 to produce 2 moles of NaCl. Therefore,
Calculating the number of moles present,
Cl2:
Number of moles = mass/molar mass
Molar mass of Cl2 = 35.5 * 2
= 71 g/mol.
= 213 * 71
= 3 moles.
NaCl:
Molar mass = 23 + 35.5
= 58.5 g/mol.
Number of moles = mass/molar mass
= 351/58.5
= 6 moles.
Since they both have equal moles,
Mass of Na = number of moles * molar mass
Molar mass of Na = 23 g/mol
= 23 * 6 moles
= 138 g
= 0.138 kg of Na.
cell to reproduce and send directions to organelles to make needed
materials.
Answer:
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Explanation:
The male and female reproductive systems have similarities and differences. Both systems have specialized organs involved in reproduction, but they produce different gametes and have different external genitalia. The female system can support the development of a fertilized egg.
SIMILARITIES
The male and female reproductive systems have a common goal of producing offspring. Both systems include specialized organs and structures involved in the process. For example, both have gonads (testes in males and ovaries in females) that produce gametes (sperm in males and eggs in females).
DIFFERENCES
One major difference is the production of different gametes: sperm in males and eggs in females. Another difference is the presence of different external genitalia: male genitalia and scrotum in males and vulva in females. The female reproductive system also has the ability to support the development of a fertilized egg, while the male system does not have this capability.
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Answer:
Decrease order of speed of atoms in solid state, liquid state and gaseous states: gas > liquid> solid
Decreasing order of space of atoms in solid state, liquid state and gaseous states: gas > liquid> solid
Explanation:
Solid state : In this state, the particles are closely packed and does not have any space between them. They have least kinetic energy due to restricted movement. This state has a definite shape and volume.
Liquid state : In this state, particles are present in random and irregular pattern. The particles are closely arranged but they can move from one place to another and thus have higher kinetic energy as compared to solids. This state has a definite volume but does not have a fixed shape.
Gaseous state : In this state, particles are loosely arranged and have a lot of space between them. They have highest kinetic energy. This state has indefinite volume as well as shape.
Decrease order of speed of atoms in solid state, liquid state and gaseous states: gas > liquid> solid
Decreasing order of space of atoms in solid state, liquid state and gaseous states: gas > liquid> solid
b. suspensions
c. colloids
d. solutions
The answer is A) heterogeneous mixtures, look up how a heterogeneous mixture is separated and it will tell you distillation. Have a nice day and good luck on the rest of your work
Human Movement is important because it most commonly used to insure optimal athletic ability. It can also be used to identify the cause of most common sports injuries and movement-related problems. The name for this type of study is called Kinesiology. This is a very necessary part of students understanding dance, sports, and physical well-being. Studying Kinesiology results in better physical performance, as well as many cardiovascular improvements. Kinesiology is used to answer many still unknown question about human movement.