1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
luda_lava [24]
3 years ago
13

Make the conversion indicated ineach of the following:

Chemistry
1 answer:
Citrus2011 [14]3 years ago
4 0

Explanation:

(a) The length of a soccer field, 120 m (three significant figures), to feet.

1 m = 3.28084 feet

120 m=120\times 3.3 feet=396 feet

(b) The height of Mt. Kilimanjaro, at 19,565 ft the highest mountain in Africa, to kilometers

1 feet = 0.0003048 km

19,565 feet=19,565\times 0.0003048 km=5.963412 km

(c) The area of an 8.5 ×11-inche sheet of paper in cm^2.

Area of the sheet = 8.5 inches × 11 inches = 93.5 inches^2

1 inch = 2.54 cm

93.5 inches^{2}=93.5\times (2.54)^2 cm^2=603.2246 cm^2

(d) The displacement volume of an automobile engine, 161 inch^3, to liters.

1 inch^3 = 0.0163871 L

161 inch^3=161\times 0.0163871 L=2.63832 L

(e) The estimated mass of the atmosphere, 5.6\times 10^{15} tons, to kilograms.

1 ton = 907.185 kg

5.6\times 10^{15} tons=5.6\times 10^{15}\times 907.185 kg

=5.08023\times 10^{18} kg

(f) The mass of a bushel of rye,32.0 Ib, to kilograms

1 lb = 0.453592 kg

32.0 lb =32.0\times 0.453592 kg=14.515 kg

(g) The mass of a 5.00-grain aspirin tablet to milligrams.

(1 grain = 0.00229 oz)

Mass of 5 grains = 5 × 0.00229 oz = 0.01145 oz

1 oz = 28349.5 mg

0.01145 oz=0.01145\times 28349.5 mg=324.601775 mg

You might be interested in
Explain what lattice energy is and how it affects the properties of ionic compounds. Describe the general properties of ionic co
irga5000 [103]
An ionic compound is the attraction between a metal and a nonmetal!!
8 0
2 years ago
Read 2 more answers
A student finds that an unknown element reacts with elements from Group 2 (IIA). To which group does the unknown element most li
REY [17]

Answer:

Explanation:

A because a

8 0
2 years ago
Read 2 more answers
The atomic symbol Superscript 206 subscript 82 upper P b. represents lead-206 (Pb-206), an isotope that has 82 protons and 124 n
Serggg [28]

Answer:

\left \{ {{y=206} \atop {x=82}}Pb \right.

Explanation:

isotopes are various forms of same elements with different atomic number but different mass number.

Radioactivity is the emission of rays or particles from an atom to produce a new nuclei. There are various forms of radioactive emissions which are

  • Alpha particle emission  \left \{ {{y=4} \atop {x=2}}He \right.
  • Beta particle emission    \left \{ {{y=0} \atop {x=-1}}e \right.
  • gamma radiation             \left \{ {{y=0} \atop {x=0}}γ \right.

in the problem the product formed after radiation was Pb-206. isotopes of lead include Pb-204, Pb-206, Pb-207, Pb-208. they all have atomic number 82. which means the radiation cannot be ∝ or β since both radiations will alter the atomic number of the parent nucleus.

Only gamma radiation with \left \{ {{y=0} \atop {x=0}}γ \right. will produce a Pb-206 of atomic number 82 and mass number 206 , since gamma ray have 0 mass and has 0 atomic number.equation is shown below

\left \{ {{y=206} \atop {x=82}}Pb\right ⇒ \left \{ {{y=206} \atop {x=82}}Pb\right +  \left \{ {{y=0} \atop {x=0}}γ\right.

Thus the atomic symbol is \left \{ {{y=206} \atop {x=82}}Pb\right

8 0
3 years ago
Read 2 more answers
Esters are generally pleasant smelling compounds<br>True<br>False​
Rzqust [24]

Answer:

True

Explanation:

Esters are generally pleasantly smelling compounds. In fact, the fragrance industry uses esters to produce perfume, as well as uses esters as an ingredient to produce synthetic flavours and cosmetics, all of which have unique and pleasant smells.

8 0
3 years ago
Combustion of Methane Endothermic or Exothermic?
Misha Larkins [42]
Idk. Idk. Idk. Idk.
7 0
3 years ago
Other questions:
  • Which particle is formed when an atom donates electron?
    9·1 answer
  • The rate constant for a certain reaction is k = 6.50×10−3 s−1 . If the initial reactant concentration was 0.600 M, what will the
    14·1 answer
  • A 0.1014 g sample of a purified CHO compound was burned in a combustion apparatus and produced 0.1486 g CO2 and 0.0609 g of H2O.
    14·1 answer
  • Why do people make mixtures
    13·1 answer
  • ANSWER ASAP AND I WILL GIVE BRAINLYEST!!!!
    6·2 answers
  • Which of the following offers the most complete definition of metabolism? the biochemical reactions that occur in nature the bio
    12·2 answers
  • The synthesization of new carbon compounds is studied in<br> chemistry.
    9·1 answer
  • C + 2ZnO → CO2 + 2zn
    15·1 answer
  • Please help, I’ll mark your answer as brainliest
    6·1 answer
  • Write the chemical formula for tin(ii)sulfite.. Please show working thank you
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!