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
vodka [1.7K]
3 years ago
14

What is Avogadro's number?

Chemistry
1 answer:
VashaNatasha [74]3 years ago
3 0

Answer:

C.  the number of atoms, molecules, ions, formula units, or other particles in a mole of a substance

Explanation: Its correct

You might be interested in
Which describes an effect that ocean currents have on short-term climate change? Ocean currents increase the strength of prevail
Luba_88 [7]

Answer:

All the option are correct

Explanation:

The ocean currents have been associated with past climatic shifts during critical periods (for example, the ice ages), where modifications in water circulation might have caused important climatic changes.

From a biological point of view, the ocean currents may be associated not only with the climate but also biogeochemical cycles through modifications in the distribution of heat and freshwater. Thus, the changes in ocean circulation may produce biogeographical shifts by affecting the local climate. The importance of ocean currents in affecting biodiversity is also represented by the equilibrium of coral reef ecosystems, where this equilibrium is broken up by factors such as transport of pollutants, temperature conditions, etc., which are known to alter thermosensitive coral species.

3 0
3 years ago
Read 2 more answers
Which list of elements consists of a metal, a metalloid, and a nonmetal?
Irina18 [472]

Answer:

Sn, Si, C

Explanation:

8 0
3 years ago
How do new scientific discoveries affect our everyday life
ludmilkaskok [199]

It affects our everday life because of new inventions and easier ways to make/produce different stuff!

7 0
3 years ago
A gas occupies 200ml at a temperature of 26 degrees Celsius and 76mmHg pressure. Find the volume at -3degree Celsius with the pr
sergey [27]

Answer:

184.62 ml

Explanation:

Let p_1, v_1, and T_1 be the initial and p_2, v_2, and T_2 be the final pressure, volume, and temperature of the gas respectively.

Given that the pressure remains constant, so

p_1=p_2 ...(i)

v_1 = 200 ml

T_1= 26 ^{\circ}C = 273+26 =299 K

T_2= 3 ^{\circ}C = 273+3 =276 K

From the ideal gas equation, pv=mRT

Where p is the pressure, v is the volume, T is the temperature in Kelvin, m is the mass of air in kg, R is the specific gas constant.

For the initial condition,

p_1v_1=mRT_1 \\\\mR= \frac{p_1v_1}{T_1}\cdots(ii)

For the final condition,

p_2v_2=mRT_2 \\\\mR= \frac{p_2v_2}{T_2}\cdots(iii)

Equating equation (i), and (ii)

\frac{p_1v_1}{T_1}=\frac{p_2v_2}{T_2}

\frac{v_1}{T_1}=\frac{v_2}{T_2}  [from equation (i)]

v_2=\frac{T_2}{T_1} \times v_1

Putting all the given values, we have

v_2=\frac{276}{299} \times 200 = 184.62 \; ml

Hence, the volume of the gas at 3 degrees Celsius is 184.62 ml.

7 0
3 years ago
if an object has a mass of 60 grams in a volume of 120 cm3 then calculate the density would this object sink or float
Ivanshal [37]

Answer: 0.5 g/cm^3

Density equals mass divided by volume so..

60/120 is 0.5 g/cm^3

7 0
2 years ago
Other questions:
  • Assuming dopant atoms are uniformly distributed in a silicon crystal, how far apart are these atoms when the doping concentratio
    7·1 answer
  • what is the percent yield of NH3 when 15.0 grams of nitrogen gas react with an excess of hydrogen gas to produce 15.4 grams of N
    8·1 answer
  • Which term is defined as the region in an atom where an electron is most likely to be located
    7·2 answers
  • Which of the following are chemicals? (1) clothing (2)food (3)fuels (4)all of the above
    14·2 answers
  • Dilute hydrochloric acid is gradually added to a solution that is buffered at pH 4.76. How will the pH of the solution be affect
    7·1 answer
  • What is the concentration of a solution formed by mixing 89.94 grams of cobalt (II)
    6·2 answers
  • 3. Explain what would happen to the digestion process if enzymes were not present. SC.6.L.14.5​
    12·1 answer
  • Thực trạng tồn dư nitrat trên rau và an toàn thực phẩm
    12·1 answer
  • S + 6 HNO3 → H₂SO4 + 6 NO₂ + 2 H₂O
    15·1 answer
  • For each ionic compound formula, identify the main group to which X belongs: (a) XF2;
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!