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
Tju [1.3M]
2 years ago
10

10) Air masses are different in many ways. Which of these is NOT different?

Chemistry
1 answer:
grandymaker [24]2 years ago
7 0

Answer:D. Ratio of oxygen/nitrogen

Explanation: the ratio will never change no matter the air pressure!

You might be interested in
Which property of a mineral sample does not influence how quickly it settles in water? 1) density 2) hardness 3) shape 4) size
satela [25.4K]
<h3><u>Answer</u>;</h3>

4) size

<h3><u>Explanation</u>;</h3>
  • The mineral’s physical properties are used in identifying minerals and are determined by its chemical composition and crystal structure.
  • <u>Streak</u> is the color of the mineral in powdered form and since it is a more accurate illustration of the mineral’s color, its is a more reliable property of minerals than color for identification.
  • <u>Hardness</u> is one of the better properties of minerals to use for identifying a mineral. Hardness is a measure of the mineral’s resistance to scratching.
  • <u>Density</u> may be used to identify minerals. It is used to describe the amount of matter in a certain amount of space. Substances that have more matter packed into a given space have higher densities.
8 0
3 years ago
(-5)+(+7)-(-4) + (+12)<br>A 8<br>B 10<br>C 18<br>d 20<br>​
Vladimir79 [104]

Answer:

C-18

Explanation:

Step one follow order of operations

Add and subtract from left to right(-5)+(7)=2-(-4)+(12)

STEP 2

Apply negative Rule -(-4)=+4=2+4+(12)

then add 2+4+12=18

5 0
3 years ago
Coffee is decaffeinated industrially using supercritical (sc) CO2. One advantage to using scCO2 is that the polarity of the supe
koban [17]

Answer:

Yes

Explanation:

A supercritical fluid has good properties for both liquid and as for extraction properties, the advantages then include:

  • The fact that it has a lower viscosity than liquid CO2 allowing it to move through and around coffee beans more thoroughly with creating back pressure
  • Its density is comparable to that of liquid CO2 meaning there is much CO2 per litre as there is liquid form making it more efficient
  • It has a higher diffusivity than liquid CO2 which aids with penetration of the coffee beans on a molecular level

This experiment would not work with tea leaves because they also contain caffeine

6 0
3 years ago
2CO + O2 --&gt; 2002
olga_2 [115]
8 moles I think I’m not sure
4 0
3 years ago
Initially, scientists described atoms as the smallest particles of matter. However, smaller particles within atoms were discover
g100num [7]

Answer:

By designing new technology that would prove new information

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • An ionic bond involves the transfer of valence electrons from a metal to a non-metal. True or False
    8·2 answers
  • #1: Which of the following statements is true?
    14·2 answers
  • Animal fats tend to be _______________ with hydrogen atoms. (fifth paragraph of this sub-section
    8·2 answers
  • A sample of i-131 decays from 12 microcuries to 3.0 microcuries in 16 days. what is the half-life of i-131?
    11·1 answer
  • In reversible reaction when do forward reactions take place
    9·1 answer
  • (PLEASE ANSWER ASAP) Which choice is the smallest in mass?
    10·2 answers
  • What is the volume of a 3.00M(mol/L) solution made with 122g of LiF?
    7·1 answer
  • For each of the scenarios, determine if the ionic strength of the solution would increase, decrease, or not change. Ignore any e
    8·1 answer
  • Read this excerpt from the beginning Through the Looking Glass of by Lewis Carroll. "Kitty, can you play chess? Now, don't smile
    11·2 answers
  • The outside layer of cells on the top and bottom of a leaf
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!