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
telo118 [61]
3 years ago
10

While elements and compounds can both be classified as pure substances because they have distinct properties and composition, __

________ cannot be decomposed further. A) compounds B) elements C) formulas D) molecules
Chemistry
2 answers:
Tresset [83]3 years ago
4 0
Elements as they are fundamental (one single hydrogen atom is still an element
makkiz [27]3 years ago
3 0
Elements or answer b
You might be interested in
10 points!
Alik [6]

I believe that it is all of the above.

"A Scientific Hypothesis Must Be "Falsifiable". A scientific hypothesis must be testable, but there is a much stronger requirement that a testable hypothesis must meet before it can really be considered scientific."

I hope this helped, have a nice day!

6 0
3 years ago
Read 2 more answers
How do CFC’s illustrate that technical advances can be a “double-edged” sword?
hram777 [196]

Answer:

CFC’s illustrate that technical advances can be a “double-edged” sword as CFC's were made for the advantages but soon or later it came as a disadvantage for environment.

CFC's was discovered with many advantages such as they are stable, non-corrosive, and replacement of harmful ammonia used in refrigerators  and air conditioning systems. But soon it is also discovered that CFC's are destroying  the upper atmosphere layer called ozone, which is a very big disadvantage for us. CFCs are major contributor  to global warming after carbon dioxide.

Hence, it proves that CFC’s shows how technological advancement can be “double-edged” sword.

7 0
3 years ago
Why are the alloys harder than pure iron
balu736 [363]

Answer:

ok

Explanation:

Alloys are harder and stronger because the different-sized atoms of the mixed metals make the atomic layers less regular, so they cannot slide as easily.

6 0
3 years ago
Who inspires you? Who do you aspire to be like?
Alex17521 [72]

Answer: this seems like YOU need to answer on ur own.

Explanation:

7 0
3 years ago
Read 2 more answers
How many grams of lead sulfide from when 10.0 g of lead are heated with 3.0 g of sulfur
zaharov [31]

The reaction forms 11.5 g PbS.  

We have the masses of two reactants, so this is a <em>limiting reactant</em> problem.

We know that we will need a balanced equation with masses, moles, and molar masses of the compounds involved.  

<em>Step 1</em>. <em>Gather all the information</em> in one place with molar masses above the formulas and everything else below them.  

M_r:      207.2  32.06  239.28

              Pb +       S →    PbS

Mass/g: 10.0       3.0

<em>Step 2</em>. Calculate the <em>moles of each reactant  </em>

Moles of Pb  = 10.0 g Pb × (1 mol Pb /207.2 g Pb) = 0.048 26 mol Pb  

Moles of S = 30 g S × (1 mol S/32.06 g S) = 0.9357 mol S

S<em>tep 3</em>. Identify the <em>limiting reactant</em>

Calculate the moles of PbS we can obtain from each reactant.  

<em>From Pb</em>: Moles of PbS = 0.048 26 mol Pb × (1 mol PbS/1 mol Pb )

= 0.048 26 mol PbS

<em>From S</em>: Moles of S = 0.9357 mol S × (1 mol PbS/1 mol S) = 0.9357 mol PbS

<em>Pb is the limiting reactant</em> because it gives the smaller amount of PbS.

<em>Step 4</em>. Calculate the <em>mass of PbS</em>.

Mass = 0.048 26 mol PbS × (239.28 g PbS/1 mol PbS) = 11.5 g PbS

The reaction produces 11.5 g PbS.

4 0
3 years ago
Other questions:
  • Important functional groups in biomolecules include --------
    14·2 answers
  • What volume would be occupied by 8.1 g of a substance with a density of 1.65041 g/cm3 ? answer in units of cm3 ?
    7·1 answer
  • Jason combines the two intermediate steps shown.
    7·2 answers
  • What's the cause of the difference between alcoholic and lactic acid fermentation?
    10·1 answer
  • Which of these salts is insoluble in water?
    8·1 answer
  • Help
    13·1 answer
  • The Periodic Table of Elements is organized by the number of:
    7·2 answers
  • To what volume should 25ml of 15m nitric acid be diluted to prepare a 3m solution
    13·1 answer
  • PLEASE HELP!!!!!!!!
    8·1 answer
  • Thermal energy _____ as temperature increases
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!