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
wolverine [178]
3 years ago
10

Which one of these is a compound? a) air b) carbon dioxide c) oxygen and d) carbon

Chemistry
2 answers:
Vanyuwa [196]3 years ago
6 0
I think is b  carbon dioxide  
USPshnik [31]3 years ago
4 0
I believe its B from what i remember in biology class
You might be interested in
Octylphenol ethoxylate is a detergent that is commonly used in chemistry laboratories. It is a thick, yellowish liquid. A chemis
Trava [24]

Answer:

is solvent, solute, solute

Explanation:

3 0
3 years ago
what is the half life isotope if after 21 days you have 31.25 g remaining from a 250.0 g starting sample size?
alexgriva [62]

250 --> 125 --> 62.5 --> 31.25


each arrow equals one half life, so 3 half lives


14 days/ 3 half lives =


4.67 days = half life

3 0
3 years ago
A sample of gas with an initial volume of 12.5 L at a pressure of 784 torr and a temperature of 295 K is compressed to a volume
Kipish [7]

Answer:

Final pressure in (atm) (P1) = 6.642 atm

Explanation:

Given:

Initial volume of gas (V) = 12.5 L

Pressure (P) = 784 torr

Temperature (T) = 295 K

Final volume (V1) = 2.04 L

Final temperature (T1) = 310 K

Find:

Final pressure in (atm) (P1) = ?

Computation:

According to combine gas law method:

\frac{PV}{T} =\frac{P1V1}{T1} \\\\\frac{(784)(12.5)}{295} =\frac{(P1)(2.04)}{310}\\\\33.22 = \frac{(P1)(2.04)}{310}\\\\P1=5,048.18877

⇒ Final pressure (P1) = 5,048.18877 torr

⇒ Final pressure in (atm) (P1) = 5,048.18877 torr / 760

⇒ Final pressure in (atm) (P1) = 6.642 atm

3 0
3 years ago
Given the formula representing a molecule:
Aleksandr [31]

Answer:

B) Symmetrical and nonpolar  

Step-by-step explanation:

The formula is H-C≡C-H.

Each C atom has <em>two</em> electron regions, so VSEPR theory predicts a <em>linear molecular geometry</em> (see image below).

The molecule is symmetrical, because the green line divides the molecule into two halves that are mirror images of each other.

The C-H bonds are slightly polar, because C is more electronegative than H (µ ≈ 0.4 D).

The C atoms are partially negative (red), while the H atoms are partially positive (blue).

However, the two C-H bond dipoles point in <em>opposite directions</em>, so they cancel each other. The molecule has <em>no net dipole moment.</em>

Acetylene is nonpolar.

3 0
3 years ago
Read 2 more answers
What is the lewis dot structure of NaBr
Anon25 [30]
<span><span>LiF, LiCl, LiBr, LiI, LiAtNaF, NaCl, NaBr, NaI, NaAtKF, KCl, KBr, KI, KAt</span><span>RbF, RbCl, RbBr, RbI, RbAt CsF, CsCl, CsBr, CsI, CsAt FrF, FrCl, FrBr, FrI, FrAt<span>
</span></span></span>
3 0
3 years ago
Other questions:
  • 1. The Great Pacific Garbage Patch is the world's largest garbage dump. How big is it?
    7·1 answer
  • Helpppp
    8·2 answers
  • What would happen to Earth’s tides if the distance between Earth and the Moon increased?
    12·2 answers
  • The following figure represents the formation of an ionic compound. Substances A and B are initially uncharged, but when mixed e
    5·1 answer
  • ________ is a strong, parallel alignment of coarse mica flakes and/or of different mineral bands in a metamorphic rock.
    13·1 answer
  • Which Carbon is the triple bound attached to in 6-ethyl-2-octyne?
    7·1 answer
  • Which barium nitrate solution requires the greatest moles of solute?
    12·1 answer
  • FREE POI NTS COME AND GET EM
    6·1 answer
  • 4 possible careers in chemistry and place of application
    12·1 answer
  • A child is swinging back and forth on a swing. Changes in her kinetic and potential energy are happening each moment. At which p
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!