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
amm1812
3 years ago
5

Explain how each of the following tools help scientists observe things.

Chemistry
1 answer:
iren [92.7K]3 years ago
7 0
A microscope is an instrument that can be used to observe small objects, even cells. The image of an object is magnified through at least one lens in the microscope. This lens bends light toward the eye and makes an object appear larger than it actually is.
You might be interested in
Lead(II) nitrate and ammonium iodide react to form lead(II) iodide and ammonium nitrate according to the reaction
inessss [21]

Answer:

Explanation:

2 NH4I    + Pb(NO3)2   =  PbI2  + 2 NH4NO3

2 mol          1 mol

x ml             751 ml

0.550 M      0.380 M

0.380 mol/1000 ml  x 751 ml =  0.285 mol Pb(NO3)2

0.285 mol Pb(NO3)2 x 2 mol NH4I/1 mol  Pb(NO3)2=0.571 mol  NH4I  needed

0.571 mol  NH4I/0.550 mol/1000 ml=1038 ml

6 0
3 years ago
the variable in an expierment that is being observed and changes in response to an independent variable
Oksanka [162]
That is the dependent variable...
6 0
4 years ago
Grape soda is a solution of the solutes carbon dioxide (CO2), sugar (C12H22°11), and grape flavoring (CHNO2) dissolved in
ser-zykov [4K]

Answer:

The ameliorated retort, pertaining to the presented and contemporaneous interrogate is acknowledged as B.  

Explanation:

To convey such rhetoric, the following is obligated for comprehension:

- To commence, according to Wikipedia, a "Pure Substance" is defined as: "A chemical substance is a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., without breaking chemical bonds."

- In addition, invariantly according to Wikipedia, a "Chemical Mixture" is defined as: "In chemistry, a mixture is a material made up of two or more different substances which are not chemically combined. A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions and colloids."

Hence, veracious retorts are subject to commence.

Given peculiar substances,

H20, an optical isomer is in recognition as a pure substance.

Likewise, CO2, an enantiomer is in the congruence of a pure substance.

Hence, methyl anthranilate acquiring a chemical formula of C8H9NO2, acknowledged as grape flavoring, is a mixture.

Invariantly, the diasteromer epimer, procuring a chemical formula configuration of C12H22O11, sucrose, is acknowledged as a mixture.

Hence, ideologically, the retort in the congruence of veracious philosophy is B. "The pure substances are carbon dioxide and water; mixtures are sugar and grape flavoring."

I hope this helps!

8 0
3 years ago
The mass in a chemical reaction is found in
stepan [7]
The energy produced by the reaction
3 0
3 years ago
When 32 grams of aluminum react, the actual yield is 105.5 grams, what is the percent yield?
user100 [1]

Answer:

329.7%

Explanation:

Percent Yield = Actual Yield/ Theoretical Yield x 100%

Percent Yield = 105.5g/32 x 100% = 329.69 ≈ 329.7 %

5 0
3 years ago
Other questions:
  • _______________ reactions transfer energy to the surroundings, usually as heat. A) Decomposition B) Endothermic C) Exothermic D)
    11·2 answers
  • In the formate ion, hco2− which of the atoms in the ion have pπ orbitals?
    5·1 answer
  • Which formula represents a non polar molecule with polar covalent bonds
    12·2 answers
  • A person's _____ changes as he travels from the earth to space, but his _____ remains the same.
    10·2 answers
  • Why isn't a different base broth required for each decarboxylase test?
    15·1 answer
  • What are the four bases in DNA and which ones pair together?
    11·1 answer
  • PLEASE HELP THIS IS SCIENCE
    9·2 answers
  • What are the TWO characteristics of an effective collision?
    10·1 answer
  • What is the [OH-] of a substance that has a pH of 11?
    5·1 answer
  • As you are giving a friend directions to your house, you tell them that
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!