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
puteri [66]
3 years ago
5

Define the concentration measurements of parts per million

Chemistry
1 answer:
enyata [817]3 years ago
4 0

Answer:

Explanation:

Parts per million (ppm) is the number of units of mass of a contaminant per million units of total mass

ppm (or ppmm) is used to measure the concentration of a contaminant in soils and sediments. In that case 1 ppm equals 1 mg of substance per kg of solid (mg/kg).

You might be interested in
How is ozone produced?
zubka84 [21]
The answer is A. the solar ultraviolet ray breaks the molecule apart
3 0
3 years ago
Read 2 more answers
When you rub two sticks together, they get hot.
worty [1.4K]
You convert kinetic energy into thermal energy when you rub two sticks together.
6 0
3 years ago
What substance is reduced in the reaction 2Fe 2+ + CI2 = 2Fe 3+ + 2CI- ?
atroni [7]

Answer:

$Cl_{2}$ is reduced in the reaction

Explanation:

The given reaction is

$2Fe^{2+}+Cl_{2} \to 2Fe^{3+}+2Cl^{-}$

The oxidation number of $Fe$ is changed from $+2\, \to \, +3$

$Fe^{2+} \to Fe^{3+}+e^{-}$

And The oxidation number of $Cl$ is changed from $0\, \to \, -1$

$Cl_{2}^{0} + 2e^{-} \to 2Cl^{-}$

Hence, $Fe^{2+}$ is oxidized and $Cl_{2}$ is reduced

5 0
4 years ago
Please answer fast!!! what does base stand for in science
pychu [463]
There are multiple meanings for a base. A base can be a substance that accepts hydrogen ions, or it could be something that is not acidic, in other words meaning its pH is between 7 and 14.
8 0
3 years ago
How would a fast-flowing river be most likely to move sand-sized particles of sediment?
Nitella [24]
A fast-flowing river would most likely be to move the skaters glide around the rink b<span>y lifting it up and carrying it downstream. In a fast-flowing river, the pressure is strong, which makes it easier for sand-sized particles of sediments to be carried or transferred. Hope this answer helps.</span>
3 0
3 years ago
Other questions:
  • In a electrolytic cell, where does oxidation occur
    9·2 answers
  • What is the ph of a solution of 0.50 m acetic acid?
    15·1 answer
  • A mineral contains only a metal, M, and sulfur. If analysis indicates that a 44.9 g sample of the mineral contains 2.1 g of M, w
    7·2 answers
  • A balloon containing helium gas expands from 230 mL to 860 mL as more helium is added. What was the initial quantity of helium p
    14·2 answers
  • Which of the following statements is/are true? I: The conjugate acid of C6H5NH2 is C6H5NH3+ II: An acid with Ka = 1x10−3 is stro
    11·1 answer
  • What is the mass, in grams, of 9.16×10^24 molecules of methanol (CH3OH)?
    7·1 answer
  • This characteristic of a sound wave changes as the volume of the sound wave changes
    12·2 answers
  • The property of a substance stays ______________ no matter how the substance is used.
    15·1 answer
  • R4te me for 10 points and be honest with me PLEASE
    13·2 answers
  • The isotope of an atom containing 31 protons and 39 neutrons suddenly has two neutrons added to it.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!