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
sertanlavr [38]
1 year ago
13

What is the length of the shaded grey area? write your answer to the correct number of significant digits. The unit is cm

Chemistry
1 answer:
alukav5142 [94]1 year ago
8 0

Answer:

1.37cm

Explanation:

It's less than 1.4cm but more than 1.3cm. It's also more than 1.35cm so I guess the best answer would be 1.37cm or round up to 1.4cm

You might be interested in
The overall order of an elementary step directly corresponds to its molecularity.
inna [77]

Answer:

true

Explanation:

7 0
3 years ago
Our good friend and pseudo scientist, homer simpson, attempts to analyze 300 mg of an unknown compound containing only c and h b
iragen [17]
C_{x}H_{y} + O_{2} --\ \textgreater \  x CO_{2} + \frac{y}{2} H{2}O

540mg H_{2}O* \frac{1 mmol H_{2}O}{18 mg H_{2}O} =30 mmol H_{2}O

\\ \\30 mmolH_{2}O   -have  -  60 mmol H
\\  \\ 60 mmol H* \frac{1mg H}{1 mmol H}    =60 mg H
\\ \\300mg C_{x}H_{y} - 60 mg H= 240 mg C
\\ \\ 240 mgC* \frac{1mmol}{12mg} =20 mmol C

20 mmol C: 60 mmol H=1 mol C : 3 mol H


7 0
3 years ago
Which of the following sets represents a pair of isotopes?
son4ous [18]
The correct option is A,
Isotopes are atoms of an element, which have the same number of protons but different number of neutrons in the nucleus of the atom. Thus, isotopes have the same atomic number but different mass number.
Looking at the options given above, you will discover that Chlorine which is given in option A is correct. Both type of chlorine has the same atomic number, which is 17, but they have different atomic masses, the atomic mass of the first one is 35 while that of the second one is 37.<span />
5 0
3 years ago
17. Which of the following describes a condition in which an individual would not hear an echo?
ivanzaharov [21]
<span>The right answer is D. In a situation where the sound wave reaches the ear and the reflected wave reaches the ear less than 0.1 seconds later, the individual would not be able to hear an echo. There needs to a far more significant delay between the sound and the reflection of said sound reaching the listener's ear for the echo effect to become apparent.</span>
5 0
3 years ago
Read 2 more answers
What is the mass in grams of 0.7350 moles of sodium?
Alik [6]

Answer:

Explanation:

1 mol of sodium = 23 grams (use the number on your periodic table).

0.7350 mol sodium = x

Cross multiply

1*x = 0.7350 * 23

x = 16.905

You will get slightly less than this, depending on your periodic table. But the method will be the same.

4 0
2 years ago
Other questions:
  • Where are the most reactive nonmetal elements found on the periodic table?
    5·2 answers
  • Dumbledore is pleased with your progress. snape is, as always, somewhat indifferent. however, they both feel a gas phase density
    13·1 answer
  • Why is there a vast amount of salt water on Earth?
    9·1 answer
  • Describe the composition of a lead storage battery
    9·1 answer
  • All of the following are chemical functional groups important to biology EXCEPT:
    10·1 answer
  • 1.35 m solution NaOCl in water is prepared. What is the mole fraction of the NaOCl?
    14·1 answer
  • What building should represent the lysosome and why
    5·1 answer
  • Which choice is a biotic factor of an ecosystem?
    10·1 answer
  • What is the meaning of term Amino acid​
    7·1 answer
  • Emission Vehicle Program Should automobile makers be made to adhere to quotas zero - emission vehicles set by states , even if t
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!