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
miv72 [106K]
3 years ago
12

How long does it take for light to travel??

Chemistry
1 answer:
Alja [10]3 years ago
6 0
499.0 seconds, light travels at a speed of 299,792 kilometers per second; 186.287 miles per second.
You might be interested in
Identify what type of reaction is below. Also determine what coefficients that would balance the chemical equation.
pantera1 [17]

Answer:

4HCl + 2Zn = 2H2 + 2ZnCl2

I hope it's helps you

3 0
3 years ago
In two or more complete sentences, describe the process of fractional distillation that used to refine crude oil.
Oksi-84 [34.3K]
I hope this helps you

3 0
3 years ago
Read 2 more answers
As illustrated, the below manometer consists of a gas vessel and an open-ended U-tube containing a nonvolatile liquid with a den
STALIN [3.7K]

Answer:

1.01atm is the pressure of the gas

Explanation:

The difference in heights in the two sides is because of the difference in  pressure of the enclosed gas and the atmospheric pressure. This difference is in mm of the nonvolatile liquid. The difference in mm Hg is:

32.3mm * (0.993g/mL / 13.6g/mL) = 2.36mmHg

As atmospheric pressure is 765mm Hg and assuming the gas has more pressure than the atmospheric pressure (There is no illustration), the pressure of the gas is:

765mm Hg + 2.36mm Hg = 767.36 mmHg

In atm:

767.36 mmHg * (1atm / 760 mmHg) =

1.01atm is the pressure of the gas

5 0
3 years ago
Aluminum and oxygen react according to the following equation: 4Al + 3O2 -> 2Al2O3 In a certain experiment, 4.6g Al was react
stiv31 [10]

Answer:

Percent yield: 78.2%

Explanation:

Based on the reaction:

4Al + 3O₂ → 2Al₂O₃

<em>4 moles of Al produce 2 moles of Al₂O₃</em>

<em />

To find percent yield we need to find theoretical yield (Assuming a yield of 100%) and using:

(Actual yield (6.8g) / Theoretical yield) × 100

Moles of 4.6g of Al (Molar mass: 26.98g/mol) are:

4.6g Al × (1mol / 26.98g) = 0.1705 moles of Al.

As 4 moles of Al produce 2 moles of Al₂O₃, theoretical moles of Al₂O₃ obtained from 0.1705 moles of Al are:

0.17505 moles Al × (2 moles Al₂O₃ / 4 moles Al) = <em>0.0852 moles of Al₂O₃</em>,

In grams (Molar mass Al₂O₃ = 101.96g/mol):

0.0852 moles of Al₂O₃ × (101.96g / mol) =

<h3>8.7g of Al₂O₃ can be produced (Theoretical yield)</h3>

Thus, Percent yield is:

(6.8g / 8.7g) × 100 =

<h3>78.2% </h3>
8 0
3 years ago
A farmer has a large field with one type of
Hoochie [10]

Answer:

Disagree

Explanation:

Biodiversity is having a variety, or a diversity of life. Having one crop is not a variety, therefore this field does not have high biodiversity.

6 0
3 years ago
Other questions:
  • If a girl is dating a guy and the guy is a catfish, what should the girl do to prove it?
    13·1 answer
  • I NEED HELP PLEASE! :)<br><br> Describe a limiting reactant in your own words.
    12·2 answers
  • When swimming the 5000 meter freestyle race, a swimmer travels at a steady pace of 68 seconds for each lap. Each lap of the pool
    13·1 answer
  • Choose the correct statement regarding the relative size of atoms:
    14·1 answer
  • Which best explains why the atomic theory is a scientific one?
    14·1 answer
  • How do you find empirical formula
    8·1 answer
  • Why is cl2 a subcript​
    9·1 answer
  • The reaction below shows how silver chloride can be synthesized. AgNO3 NaCl Right arrow. NaNO3 AgCl How many moles of silver chl
    9·2 answers
  • Dmitri mendeleev contribution to the periodic table.
    6·1 answer
  • Draw a condensed structure of each of the following
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!