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
san4es73 [151]
3 years ago
14

What are the four important steps needed to obtain accurate melting points on a mel-temp

Chemistry
1 answer:
AveGali [126]3 years ago
3 0

Explanation:

1) refine the specimen into fine powder 2) place the smallest amount you can see in the capillary tube 3) set the voltage to increase exponentially to 200 below the predicted temperature, then adjust so that the temperature rises to 20 per minute 4) report the temperature at which the liquid first appears and the temperature at which the last crystal disappears.

You might be interested in
Calculated from measurements of distance and time defined
prisoha [69]

Answer:

Any of the six chemical elements that markup group1

of the periodic table.

Explanation:

8 0
2 years ago
99 POINTS!! Question: Tell what information each number or symbol in a chemical formula tells you. (Please be specific :)
taurus [48]

Answer: A subscript or superscript is a character that is set slightly below or above the normal line of type, respectively. It is usually smaller than the rest of the text. Subscripts appear at or below the baseline, while superscripts are above.

a coefficient is a constant term related to the properties of a product. In the equation that measures friction, for example, the number that always stays the same is the coefficient.

Parentheses are used in mathematical expressions to denote modifications to normal order of operations (precedence rules). In an expression like , the part of the expression within the parentheses, , is evaluated first, and then this result is used in the rest of the expression.

Chemical symbols are abbreviations used in chemistry for chemical elements, functional groups and chemical compounds. Element symbols for chemical elements normally consist of one or two letters from the Latin alphabet and are written with the first letter capitalized.

That there are no numbers present in the chemical formula means that there is one atom of each element present in the molecule. The Periodic Table reveals that Na is the symbol for sodium, and Cl is the symbol for chlorine.

Explanation:

Is this Good enough?

3 0
2 years ago
Read 2 more answers
PLEASE HELP, THIS IS TIMED!!!!!!!!!!!!!!!!!!!!!!!!!!Convert 22.6g AgNO3 to moles.
andreev551 [17]

Answer:

the answer b because

The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles AgNO3, or 169.8731 grams.

Explanation:

5 0
3 years ago
Sodium (na), atomic number 11, has a tendency to lose an electron in the presence of chlorine. after losing the electron, na has
Paha777 [63]
Eleven because protons don’t leave.
3 0
3 years ago
What types of volcanic landforms occur at divergent plate boundaries
DochEvi [55]
In divergent boundaries deep ocean trenches form due to the 2 plates pulling apart. the plate in the middle gets stretched thinner and thinner as it submerges into the sea until enough pressure causes magma to erupt from it. when the magma erupts new sea floor is created
8 0
3 years ago
Other questions:
  • Why does molecular polarity occur? ​
    7·1 answer
  • The table lists the chemical formulas or symbols of a few common substances. Which two substances are compounds? A) aluminum and
    5·2 answers
  • Which type of bonding involves the complete transfer of a valence electron from a less electronegative atom to a more electroneg
    13·2 answers
  • I NEED HELP FAST!!!!! Can you tell me about the development of the periodic table??? I have a DBA in a few minutes and I don't k
    5·1 answer
  • How many moles of Al are necessary to form 45.0 g of AlBr, from this
    15·1 answer
  • 3. What mass of copper could be deposited from a copper(II) Sulphate solution using a current of 5.0 A over 100 seconds? ( F =96
    11·1 answer
  • 1) Calculate the molarity of a solution produced by dissolving 35.7 g of solid Cu(ClO3)2 in enough water to make 250 mL of solut
    8·1 answer
  • A catalyst increases the rate of a chemical reaction by
    5·1 answer
  • Why is nucleus of an atom charged is negatively charged?
    11·1 answer
  • 130cals.com
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!