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
Art [367]
3 years ago
9

A weight of 0.27 kilogram is 1. 0.00027 mg 2. 270 mg 3. 27 mg 4. 2.7 × 105 mg

Chemistry
1 answer:
julia-pushkina [17]3 years ago
8 0
The answer is:  4)  " 2.7 * 10⁵  mg "   .
________________________________________________________
Explanation:
________________________________________________________
Since all answer choices given are in "mg" ("milligrams");  we need to convert our given value, "0.27 kg" ("kilograms") to "mg" ("milligrams").
________________________________________________________
Note the following "exact value" conversions:
________________________________________________________
 1000 mg = 1 g ;
   1000 g = 1 kg. 

(0.27 kg) (1000 g / 1 kg) (1000 mg/1 g) = __?__ mg ;
_____________________________________________________
 The units of "kg", and "g" cancel to "1" and we are left with:
________________________________________________
0.27 * 1000 * 1000  mg  = 270,000 mg =  2.7 * 10<span>⁵ </span> mg ; which is:
_______________________________________________________
                                                               → Answer choice: # 4  .
_______________________________________________________
You might be interested in
(b) Do compounds of hydrogen exhibit a relatively large or small kinetic isotope effect? Explain.
joja [24]

Compounds of hydrogen exhibit a relatively large kinetic isotope effect.

The phenomenon known as the kinetic isotope effect (KIE) is brought on by the variable reaction speeds that are displayed by isotopically substituted compounds. When it comes to studying reaction kinetics, mechanisms, and solvent effects, isotope effects like KIEs are invaluable tools in both physical and biological sciences.

The phenomenon known as the kinetic isotope effect (KIE) is brought on by the variable reaction speeds that are displayed by isotopically substituted compounds. When it comes to studying reaction kinetics, mechanisms, and solvent effects, isotope effects like KIEs are invaluable tools in both physical and biological sciences. The replacement of hydrogen with deuterium is a highly frequent isotope substitution. The ratio kH/kD, which describes this as a "deuterium effect," is used to measure it. Due to the proportion, significant effects are observed.

Learn more about kinetic isotope effect here:

brainly.com/question/20388488

#SPJ4

6 0
2 years ago
The student measures the actual pressure of the CO2(g) in the container at 425 K and observes that it is less than the pressure
Naddika [18.5K]

Answer:

Answer in explanation

Explanation:

Gases are expected to behave as ideal gases at particular temperature and pressure know as the S.T.P.

At a temperature of 273k and a pressure of 1atm, it is expected that a mole of a gas will occupy a volume of 22.4L. Now, a particular student measured the pressure of a gas at 425K, it is expected that the pressure is different from the one that is supposed to be observed at STP and thus , the measures quite differently

4 0
3 years ago
Determine the maximum amount of NaNO3 that was produced during the experiment. Explain how you determine this amount.
Natali5045456 [20]

Answer:

9 moles

Explanation:

see image linked!

8 0
2 years ago
Read 2 more answers
The molarity of a solution that contains 8.0 g of NaOH in a liter of solution is
Kay [80]

Answer:

0.2M NaOh

Explanation:

there are 0.2 mol of NaOH in 8.0 g. (8.0/40) =0.2. Molarity = mol/L = 0.2M.

8 0
2 years ago
How did the development of the earliest idea about atoms differ from the later work of scientists?
NISA [10]
The early ideas of the atom states that the indivisible object is hollow or is a solid object with nothing inside. The later discoveries or works of the scientists states that inside the atoms are the subatomic particles which are the electrons, protons, and neutrons. 
6 0
3 years ago
Read 2 more answers
Other questions:
  • Select all that apply. what intermolecular forces stabilize a lipid bilayer?
    14·1 answer
  • *Giving Brainly with the points* Best answer gets it
    8·1 answer
  • Chemistry intro please help
    5·1 answer
  • Work out the empirical formula of a compound that contains 35% of nitrogen , 5% of hydrogen and 60% of oxygen.
    9·1 answer
  • Does solubility have any unit? Answer properly​
    8·2 answers
  • The extraction of zinc from zinc blend and explain how the zinc oxide be reduced using Carbon monoxide Electrolysis
    13·1 answer
  • Which of the following compounds is formed by a covalent bond?
    12·1 answer
  • Question 3 of 10 Which two features are parts of a line graph? D A. A line of best fit B. Anx axis C. A dependent variable OD. A
    15·1 answer
  • What is Arrhenius's definition of an acid?
    9·2 answers
  • An electron initially in a 4p state decays to a lower energy state. which energy state is forbidden?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!