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
dusya [7]
3 years ago
6

Please help me out asap

Chemistry
2 answers:
Anarel [89]3 years ago
7 0

Factory chimney is considered as a point source by US EPA.

So ans is A.


Yuki888 [10]3 years ago
4 0

The photo shows a factory smokestack - it is considered as a point source. So the answer is A.

You might be interested in
Draw the major organic substitution product(s) for (2R,3S)-2-bromo-3-methylpentane reacting with the given nucleophile. Indicate
Andrew [12]

Answer:

(2R,3S)-2-ethoxy-3-methylpentane

and

(2S,3S)-2-ethoxy-3-methylpentane

Explanation:

For this case, we will have  CH_3CH_2O^- as nucleophile. Also, this compound is also in excess. So, we will have as solvent CH_3CH_2OH a protic solvent. Therefore the Sn1 reaction would be favored.

The first step would be the carbocation formation followed by the attack of the nucleophile. In this case both isomers would be produced: R and S (see figure).

7 0
2 years ago
Explain ionization suppressants as applied to atomic spectrometry
levacccp [35]

An ionization suppressor is an alkali metal capable of preventing ionization, which can be used in atomic spectroscopy to determine matter composition.

<h3>What is ionization?</h3>

Ionization refers to the phenomena capable of converting neutral atoms/molecules to electrically charged atoms/ions.

Ionization is a process by which radiation (e.g., alpha, beta, gamma rays) can pass energy to inert matter.

Some examples of ionization suppressors include salts of alkali metals (for example, potassium), which can be used in atomic spectroscopy to determine matter composition.

Learn more about ionization here:

brainly.com/question/1445179

8 0
2 years ago
As part of your job you are asked to make 1 liter of a 0.5 molar sucrose solution. how much sucrose (c12h22o11) do you need? use
kakasveta [241]

Answer:-  171 g

Solution:- It asks to calculate the grams of sucrose required to make 1 L of 0.5 Molar solution of it.

We know that molarity is moles of solute per liter of solution.

If molarity and volume is given then, moles of solute is molarity times volume in liters.

moles of solute = molarity* liters of solution

moles of solute = 0.5*1 = 0.5 moles

To convert the moles to grams we multiply the moles by molar mass.

Molar mass of sucrose = 12(12) + 22(1) + 11(16)  

= 144 + 22 + 176

= 342 grams per mol

grams of sucrose required = moles * molar mass

grams of sucrose required = 0.5*342  = 171 g

So, 171 g of sucrose are required to make 1 L of 0.5 molar solution.




6 0
3 years ago
Spontaneous generation is a mistaken idea because living things:
Oduvanchick [21]
B. Are produced only by living things


7 0
3 years ago
Read 2 more answers
Malic acid, C4H6O5, has been isolated from apples. Because this compound reacts with 2 molar equivalents of base, it is a dicarb
Flura [38]

Answer and explanation:

The attached figure shows five different structures for the chemical formula C4H5O5, but only one of these structures represent the malic acid.

Malic acid is a dicarboxylic acid, this means malic acid has two

-COOH groups.  Also, malic acid is a secundary alcohol, which means it has a  R2-C-OH group.

-Structure A has two carboxylic groups, but it doesn´t have a secundary alcohol.

-Structure B doesn´t have any caborxylic group.

-Structure C has two carboxylic groups and  it is a secundary alcohol. Structure C is the Malic acid

4 0
3 years ago
Other questions:
  • Which of the following metals will react with water to produce a metal hydroxide and hydrogen gas? (2 points) Mg Li Al Pb
    7·1 answer
  • An ionic bond involves the transfer of valence electrons from a metal to a non-metal. True or False
    8·2 answers
  • 1. For each polypeptide sequence listed, choose from the options given below to indicate which
    9·2 answers
  • The measure of the energy of motion of particles of matter
    15·1 answer
  • Do you think a single gene controls height in humans, as it does in peas? Explain your answer.
    7·2 answers
  • How many grams of FeCl 3 are in 250. mL of a 0.100 M solution?
    13·1 answer
  • In the chemical reaction, calcium carbonate (CaCO3) was heated to form two new
    10·1 answer
  • Propane (C3H3) is used in domestic cooking and heating. A typical home in Pennsylvania burns 750 gal of propane for heating over
    13·1 answer
  • 20.8 grams of ethanol (CH3CH2OH) was burned in a calorimeter containing 200.0 grams of water. If the
    9·1 answer
  • g in the combustion of 0.398 mol c4h8, how many moles of o2 would be required to completely react with the fuel?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!