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
mart [117]
3 years ago
11

Match each lab incident to the item of PPE that will protect you from it. Each item of PPE will only be used once.

Chemistry
1 answer:
andre [41]3 years ago
5 0

Answer:

fefeff

Explanation:

wdwdwfefe

You might be interested in
Which subatomic particle accounts for magnetism ?
Natalija [7]

Answer:

Each atom has electrons, particles that carry electric charges. Spinning like tops, the electrons circle the nucleus, or core, of an atom. Their movement generates an electric current and causes each electron to act like a microscopic magnet

Explanation:

trust me

4 0
2 years ago
Express the concentration of a 0.0320 M aqueous solution of fluoride, F−, in mass percentage and in parts per million (ppm). Ass
denis23 [38]

Answer:

607 ppm

Explanation:

In this case we can start with the <u>ppm formula</u>:

ppm=\frac{mg~of~solute}{Litters~of~solution}

If we have a solution of <u>0.0320 M</u>, we can say that in 1 L we have 0.032 mol of F^-, because the molarity formula is:

M=\frac{mol}{L}

In other words:

0.0320~M=\frac{mol}{1~L}

mol=0.032~M*1~L=0.032~mol

1~L~of~Solution=0.0320~mol~of~solute

If we use the <u>atomic mass</u> of F  (19 g/mol) we can convert from mol to g:

0.0320~mol~F^-\frac{19~g~F^-}{1~mol~F^-}~=~0.607~g

Now we can <u>convert from g to mg</u> (1 g= 1000 mg), so:

0.607~g\frac{1000~mg}{1~g}=607~mg

Finally we can <u>divide by 1 L</u> to find the ppm:

ppm=\frac{607~mg}{1~L}=~607~ppm

<u>We will have a concentration of 607 ppm.</u>

I hope it helps!

4 0
3 years ago
Using what you have learned about magnetic forces, potential and kinetic energy. Describe the changes
weeeeeb [17]

Answer:

reversible reaction or covalent bonds

7 0
2 years ago
What are the four types of biological molecules and their main function in the human body?
Flauer [41]

Answer:

There are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids)

Explanation:

There are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids), and each is an important component of the cell and performs a wide array of functions. ... Biological macromolecules are organic, meaning that they contain carbon.

7 0
3 years ago
The number of energy levels are determined by what __________________ they are in. So, elements with 6 energy levels are found i
Anarel [89]

Answer:

group, 6 or 16

Explanation:

as the group's progress going from the left of the table to the right of the the table, the valance electrons increase. although group 14 is split up by a ladder stair steppy thingy. the ones on the top take electrons, and the ones below give electrons.

6 0
3 years ago
Other questions:
  • Write a summary of a toms​
    10·1 answer
  • What type of glassware is useful for transferring liquids from a big container to a small container?
    8·2 answers
  • Consider the following half reactions and their standard reduction potential values to answer the following questions.
    5·1 answer
  • You dissolve 10 grams of sugar in a hundred mL of water in one container and another 10 grams of sugar and 500 mL of water in a
    5·1 answer
  • Witch statement correctly compares a law to a theory?
    6·2 answers
  • 3. Prolonged exposure to lead or lead salts is toxic. To prevent lead poisoning, the current standard for lead paint is 600.0 pp
    14·1 answer
  • - Calculate the molarity of 23 grams of OH in 24<br> of water
    14·1 answer
  • The prefix himbo-means heap : true false
    6·1 answer
  • Which Reference Tables must be used to determine the number of carbon atoms in a parent chain and the type of bonding between th
    10·1 answer
  • What information would you need to determine the most likely resonance structure for the molecule?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!