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
vagabundo [1.1K]
2 years ago
7

Once you have collected 40 mL of distillate, you should ________. turn off your hot plate lower your lab jack carelessly use you

r hand to remove the heating block turn off the hot plate and carefully lower the lab jack, making sure that no cords or hoses get caught in it
Chemistry
1 answer:
sweet-ann [11.9K]2 years ago
5 0

Answer:

Once you have collected 40 mL of distillate, you should ________.

turn off the hot plate and carefully lower the lab jack, making sure that no cords or hoses get caught in it.

Explanation:

Distillate is the product obtained from the process of distillation.  Distillation is the separation of components of a liquid mixture based on different boiling points. Distillation can be used to purify alcohol, for desalination, refining of crude oil, and for obtaining liquefied gases.  A lab jack is an essential tool that supports and lifts hotplates, glassware, baths, and other small lab equipment requiring stable surfaces at a specific height.

You might be interested in
For the chemical reaction CaI2+2AgNO3-> 2AgI+Ca(NO3)2 how many moles of silver iodide will be produced from 205g of calcium i
Colt1911 [192]

Answer:

Moles of silver iodide produced = 1.4 mol

Explanation:

Given data:

Mass of calcium iodide = 205 g

Moles of silver iodide produced = ?

Solution:

Chemical equation:

CaI₂ + 2AgNO₃     →      2AgI + Ca(NO₃)₂

Number of moles calcium iodide:

Number of moles = mass/ molar mass

Number of moles = 205 g/ 293.887 g/mol

Number of moles = 0.7 mol

Now we will compare the moles of calcium iodide with silver iodide.

                     CaI₂         :           AgI

                         1           :             2

                       0.7         :           2×0.7 = 1.4

Thus 1.4 moles of silver iodide will be formed from 205 g of calcium iodide.

6 0
3 years ago
What is the mass of 21.7 moles of Al(NO3)3?
Elza [17]

Answer:I would say 21grams but i am not sure

Explanation:

5 0
2 years ago
Which statement is true about how scientists draw conclusions from data?
jok3333 [9.3K]
I believe the answer is D.
Scientists are biased, and want to prove their specific hypothesis is right.
3 0
3 years ago
Read 2 more answers
Im not doing the math-
BigorU [14]
The average speed of the blocks are 0.36 m/s.
Explanation:
Average speed is defined as the ratio of distance covered per unit time. So if it is said that blocks are pulled to 0.9 m in the right side. This means the blocks cover a distance of 0.9 m from the origin and that distance is covered in 2.5 s. Thus, the average speed can be calculated from the change in speed with respect to time. As at time t = 0 , the speed is also zero, and at time t = 2.5 s , the speed will be
Since, in this case, the speed is equal to the average speed of blocks. So the average speed of the blocks will be 0.36 m/s.
3 0
3 years ago
Read 2 more answers
What is the key difference that causes the atoms of one element to differ from the atoms of the other elements? A the number of
Akimi4 [234]

Answer:

B = the number of protons

Explanation:

The atom of every elements differ from each other because of number of protons they have.

Every atom consist of neutron, proton and electron. Protons and neutrons are present with in nucleus while the electrons are present out side the nucleus.

All these three subatomic particles construct an atom. A neutral atom have equal number of proton and electron.

The number of neutrons may be same but every atom have different number of protons.

Neutron and proton are present inside the nucleus. Proton has positive charge while neutron is electrically neutral. Proton is discovered by Rutherford while neutron is discovered by James Chadwick in 1932.

Symbol of proton= P+  

Symbol of neutron= n0  

Mass of proton=1.672623×10-27 Kg

Mass of neutron=1.674929×10-27 Kg

8 0
3 years ago
Other questions:
  • Sedimentation increases with an increase in land used for agriculture.
    9·1 answer
  • How many atoms of phosphorus are in 3.30 mol of copper(II) phosphate?
    14·2 answers
  • Force acts on it.
    13·1 answer
  • Atomic bombs are a type of nuclear weapon. List three reasons people might be fascinated by something as dangerous as a nuclear
    10·2 answers
  • A non-metal usually forms 2 covalent bonds in its compounds.How many electrons will it take in its valence shell?
    11·1 answer
  • If you are involved in a vehicle accident, you should not drink any alcohol up to ___ hours after the accident or you could be l
    7·1 answer
  • Which statement is true of covalent bonds?
    9·1 answer
  • A solution of 100.0 mL of 0.200 M KOH is mixed with a solution of 200.0 mL of 0.150 M NiSO4. (a) Write the balanced chemical equ
    6·1 answer
  • Which best describes xylem and
    14·1 answer
  • A compound has an empirical formula C₂H4S.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!