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
Sladkaya [172]
3 years ago
9

Which formula is both a molecular and an empirical formula?

Chemistry
2 answers:
Ksju [112]3 years ago
3 0

Answer:

D) c2h4o2

Explanation:

Hope this helps :D

nlexa [21]3 years ago
3 0

Answer:

B

Explanation:

The subscripts of the elements do not have any common factors. The compound cannot be broken up in any way.

You might be interested in
____ help scientists understand processes in the natural world by providing simpler representations of those processes.
Marina CMI [18]

Answer:

Models help scientists understand processes in the natural world by providing simpler representations of those processes.

7 0
3 years ago
You are working in the lab, how many grams of solute you need to make 200.0 g of 3.4% of solution?
Goryan [66]

Answer:

6.8g of solute are needed

Explanation:

Percent by mass, (w/w%) is defined as the mass of solute in 100g of solution. A solution that is 3.4% contains 3.4g of solute in 100g of solution. That means to make 200g of solution are required:

200g solution * (3.4g solute / 100g solution) = 6.8g of solute are needed

6 0
3 years ago
Explain what is meant by Pleistocene ice age
makkiz [27]

By Pleistocene ice age is meant the glacial periods that appeared in the Pleistocene. The Pleistocene is the first epoch of the Quaternary. It is an epoch when there was a so called ''ice age'' on the Earth, or rather a glacial period. During this ice age the planet had much lower temperatures on a global scale. The climate was also much drier. Lot of ocean water was frozen in the ice sheets that were stretching deep into the North American and Eurasian continents, which resulted in much lower sea levels that today as well. The places further north than 40 degrees of latitude were almost exclusively covered with ice, so life was almost impossible apart from some coastline places.

7 0
3 years ago
The solubility of CO2 in water is 0.161 g/100 mL at 20oC and a partial pressure of CO2 of 760 mmHg. What partial pressure of CO2
Schach [20]

<u>Answer:</u> The partial pressure of carbon dioxide having solubility 0.886g/100mL is 4182.4 mmHg

<u>Explanation:</u>

Henry's law states that the amount of gas dissolved or molar solubility of gas is directly proportional to the partial pressure of the liquid.

The equation given by Henry's law is:

C_{CO_2}=K_H\times p_{CO_2}       ......(1)

where,

C_{CO_2 = solubility of carbon dioxide in water = 0.161 g/100 mL

K_H = Henry's constant = ?

p_{CO_2} = partial pressure of carbon dioxide = 760 mmHg

Putting values in equation 1, we get:

760mmHg=K_H\times 0.161g/100mL\\\\K_H=\frac{760mmHg}{0.161g/100mL}=4720.5g.mmHg/100mL

Now, calculating the pressure of carbon dioxide using equation 1, we get:

C_{CO_2 = solubility of carbon dioxide in water = 0.886 g/100 mL

K_H = Henry's constant = 4720.5 g.mmHg/100 mL

p_{CO_2} = partial pressure of carbon dioxide = ?

Putting values in equation 1, we get:

p_{CO_2}=4720.5g.mmHg/100mL\times 0.886g/100mL=4182.4mmHg

Hence, the partial pressure of carbon dioxide having solubility 0.886g/100mL is 4182.4 mmHg

4 0
3 years ago
1 What characteristic of an element determines how its atoms can bond with other<br> atoms?
Masja [62]

Answer:

Electrons

Explanation:

The electrons of the outermost energy level determine the energetic stability of the atom and its tendency to form chemical bonds with other atoms to form molecules. Under standard conditions, atoms fill the inner shells first, often resulting in a variable number of electrons in the outermost shell.

8 0
3 years ago
Other questions:
  • What reaction involves one element replacing an element in a compound that is from the same activity series?
    11·1 answer
  • For which gases does the ratio of PV to RT equal a constant?
    12·1 answer
  • Does lithium or potassium have a strong nuclear pull
    14·1 answer
  • How many total moles of ions are released when the following sample dissolves completely in water? Enter your answer in scientif
    8·1 answer
  • For a reaction to be nonspontaneous under standard conditions at all temperatures, the signs of δh∘ and δs∘ must be ________ and
    12·1 answer
  • Organism with heterozygous alleles received how many alleles from each parent?
    9·1 answer
  • For the decomposition of hydrogen peroxide in dilute sodium hydroxide at 20 °C 2 H2O2(aq)2 H2O(l) + O2(g) the following data hav
    9·1 answer
  • Some COCl2 is placed in a sealed flask and heated to 756 K. When equilibrium is reached, the flask is found to contain COCl2 (7.
    11·1 answer
  • How to learn chemistry?​
    12·1 answer
  • What do you think a mutation is?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!