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
krok68 [10]
2 years ago
6

40 POINTS

Chemistry
1 answer:
Llana [10]2 years ago
7 0

Answer:

troposphere

stratosphere

mesosphere

thermospjere

exosphere

Explanation:

this is from the lowest to highest

You might be interested in
How many kg of gas fill a 11.6 gal gas tank
Leto [7]

Answer:

43.964

Explanation:

i think i used a calculator so let me know if its wrong

6 0
4 years ago
Read 2 more answers
3. A PS6 plugged into a 120 V outlet uses 3 Amps. What is the Resistance rating of
blondinia [14]

Answer:

R = 40 ohms

Explanation:

Given that,

The voltage of outlet, V = 120 V

Current flowing through the device, I = 3 A

We need to find the Resistance rating of  the power cord. Let the resistance is R. We know that,

Ohm's law, V = IR

Put all the values,

R=\dfrac{V}{I}\\\\R=\dfrac{120}{3}\\\\R=40\ \Omega

So, the resistance rating of the power cord is equal to 40 ohms.

8 0
3 years ago
A sample obtained from the national bureau of standards had a calibrated weight of 20.000. When it was used tocalibrate a studen
melisa1 [442]

Answer : The measurements are both precise and accurate.

Explanation :

Accuracy : It is defined as the closeness of a measured value to a standard or known value.

For Example: If the mass of a substance is 50 kg and one person weighed 48 kg and another person weighed 55 kg. Then, the weight measured by first person is more accurate.

Precision : It is defined as the closeness of two or more measurements to each other.

For Example: If you weigh a given substance five times and you get 1.8 kg each time. Then the measurement is said to be precise.

Level of precision is determined by the maximum number of decimal places.

When the level of precision is very very less, the measurement can be considered as most precise and most accurate.

As we are given the standard value of the sample is 20.000 and the values measured by the balance are, 19.995, 20.005, 20.001.

Since these three values are in the range of +/- 0.005 from one another. So, we can say that the measurements are both precise and accurate.

Hence, the measurements are both precise and accurate.

3 0
4 years ago
Use electron configurations to account for the stability of the lanthanide ions Ce⁴⁺ and Eu²⁺.
Citrus2011 [14]

Answer:

Explanation:

 The Ce metal has electronic configuration as follows

[Xe] 4f¹5d¹6s²

After losing 4 electrons , it gains noble gas configuration ,. So Ce ⁺⁴ is stable.

Eu  has electronic configuration as follows

[ Xe ] 4 f ⁷6s²

[ Xe ] 4 f ⁷

Its outermost orbit contains 2 electrons so  Eu²⁺ is stable. Its +3 oxidation state is also stable.

Ce⁺²

7 0
4 years ago
Isotopes of the same element have different
Nana76 [90]
Isotopes of the same element have different mass numbers.

C. mass numbers.


one mole of copper has 6.02 x 10²³ atoms

C. 6.02 * 10²³ atoms.
5 0
3 years ago
Other questions:
  • A squirrel runs at a steady rate of 0.51 m/s in a circular path around a tree. If the squirrel's centripetal acceleration is 0.4
    15·2 answers
  • Write a complete chemical formula including physical state symbol for nitrogen
    9·1 answer
  • What characteristics of estuaries make them good places for fish to lay their eggs?
    9·1 answer
  • Which of the following summarizes photosynthesis?
    8·1 answer
  • How many copper atoms are in a pure copper statue with a mass of 142kg
    6·1 answer
  • Is zinc is pure substance or impure substance?​
    7·1 answer
  • In the reaction shown above , the?
    6·1 answer
  • Heat will continue to move until the objects or areas have reached the same ______.
    13·2 answers
  • Nguyên tử X có tổng số hạt là 34, số khối X là 56. Điện tích hạt nhân của X là?
    10·1 answer
  • A student has a sample of 1.33 moles of fluorine gas that is contained in a 23.3 L container at 314 K. What is the pressure of t
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!