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
Usimov [2.4K]
3 years ago
7

If you were asked to convert 25 mg to the unit hg, which of the following would be the first fraction used in the conversion? te

n to the negative third power hg over one g ten to the negative third power mg over one hg ten to the negative third power mg over one g ten to the negative third power g over one mg
Chemistry
1 answer:
NemiM [27]3 years ago
6 0
The conversion factor is added to the original given unit so that you can end up with the final unit. Basically, the conversion unit does not change the value because the factor is just equal to 1. You just manipulate the units by cancelling them.

Among the given choices, the fraction which is equal to 1 is 10⁻³ g/ 1 mg, because there are 1,000 mg per 1 g. In reverse, that would be 10⁻³ of a gram.
You might be interested in
The term that describes two or more objects in a system reaching the same temperature is
Galina-37 [17]

The correct answer is Thermal Equilibrium

Explanation:

The term "thermal equilibrium" is used when two or more objects have the same temperature and therefore there is not an exchange of heat between them. This occurs when the objects had a different temperature at the beginning but due to a close contact heat is transferred from one object to the other until an equilibrium or same temperature is reached. For example, a hot cup over a table or any other surface will transfer the heat to the surface, but after some time both the cup and the surface will have the same temperature or will reach thermal equilibrium.

7 0
3 years ago
Who was the first person to show strong empirical evidence for the existence of atoms?.
Mekhanik [1.2K]

Given what we know, we can confirm that John Dalton was the first person to show strong empirical evidence for the existence of atoms.

<h3>Who was John Dalton?</h3>
  • He was a renowned scientist with knowledge in many fields.
  • He was known to be a chemist, meteorologist, and physicist.
  • He proposed the atomic theory and carried out experiments to provide supporting evidence.

Therefore, given his proposal of the atomic theory and the experiments he carried out to provide evidence to support his claims, we can confirm that John Dalton was the first person to show strong empirical evidence for the existence of atoms.

To learn more about atoms visit:

brainly.com/question/13981855?referrer=searchResults

6 0
1 year ago
9. During an experiment the students prepared three mixtures A)Starch in water B) Sodium chloride solution C) Tincture of Iodine
il63 [147K]

Answer:

See explanation

Explanation:

Tyndall effect refers to the scattering of light in a solution. Tyndall effect occurs when the size of particles in the solution exceeds 1 nm in diameter. Such solutions are actually called false solutions.

In tincture of iodine, the size of particles in solution is less than 1 nm in diameter hence the solution does not exhibit Tyndall effect. Hence, tincture of iodine is a true solution.

Therefore, if the size of particles in solution exceeded 1nm in diameter, Tyndall effect is observed.

7 0
3 years ago
What 3 sub types of covergent plate boundaries?
Virty [35]
(1) Ocean to Continent
(2)Continent to Continent
(3)Ocean to Ocean
are the three sub types of convergent plate boundaries.
5 0
3 years ago
Plz help me I am timed
Eddi Din [679]

Answer:

C. interior plains

Explanation:

sana makatulong

8 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP MEEE!!! A group of students performed an experiment in which they dropped a cube of metal into a graduated cylinder
    11·1 answer
  • Calculate the vapor pressure of spherical water droplets of radius (a) 17 nm and (b) 2.0 μm surrounded by water vapor at 298 K.
    14·1 answer
  • What are two objects used to find density
    13·1 answer
  • Explain Newton’s third law of motion.
    6·1 answer
  • What must an organism contain in its cells to undergo photosynthesis?
    5·1 answer
  • How many electrons does each atom have? What group is each in?
    8·1 answer
  • Draw the major organic product for the reaction of 1-phenylpropan-1-one with the provided phosphonium ylide.
    6·1 answer
  • A wave is moving towards shore with a velocity of 5.0 MS if it’s frequency is 2.5 Herz what is the wave length
    12·1 answer
  • PLEASE HELP!!! I will mark Brainliest!!! How could you know if two substances were the same based upon 2 chemical reactions?
    10·2 answers
  • Fill in the blank.<br> 9.31x10^3 = [ ? ]x 10^5
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!