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allsm [11]
3 years ago
6

Which of the following is an example of a covalent bond?

Chemistry
1 answer:
loris [4]3 years ago
4 0

Answer:

C. H2O

yep this one is right

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Which of the following provides evidence that supports the continental drift theory? PLEASE HELP 10 POINTS
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I believe that it is A. If you remember in lesson 03.03 it gave multiple examples of things that support the continental drift theory. One of them was fossils of the same organisms found in different continents.
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What is the final volume (l) of a 10.0 l system that has the pressure quartered?
mihalych1998 [28]
According to Boyle's Law, P1V1 = P2V2

where P1 and V1 are initial pressure and volume respectively. P2 and V2 are final pressure and volume receptively.

Given: P2 = 4 P1 and V1 = 10.0l

∴ V2 = 2.5 l

Answer: Final volume of system is 2.5 l


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3 years ago
A space probe identifies a new element in a sample collected from an asteroid. Successive ionization energies (in attojoules per
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Ionization energy (IE) is the amount of energy required to remove an electron.

If you observe the IEs sequentially, there is a large gap between the 2nd and 3rd. This suggests it is difficult to remove more than 2 two electrons. Elements that lose two electrons to become more stable are found in the Group 2A (2 representing the number of electrons in the outermost valence shell).

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3 years ago
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A 4.0 L balloon has a pressure of 406 kPa. When the pressure increases to 2,030 kPa, what is the volume? *
elena-14-01-66 [18.8K]

The new volume when pressure increases to 2,030 kPa is 0.8L

BOYLE'S LAW:

The new volume of a gas can be calculated using Boyle's law equation:

P1V1 = P2V2

Where;

  1. P1 = initial pressure (kPa)
  2. P2 = final pressure (kPa)
  3. V1 = initial volume (L)
  4. V2 = final volume (L)

According to this question, a 4.0 L balloon has a pressure of 406 kPa. When the pressure increases to 2,030 kPa, the volume is calculated as:

406 × 4 = 2030 × V2

1624 = 2030V2

V2 = 1624 ÷ 2030

V2 = 0.8L

Therefore, the new volume when pressure increases to 2,030 kPa is 0.8L.

Learn more about Boyle's law calculations at: brainly.com/question/1437490?referrer=searchResults

3 0
2 years ago
The volume of a gas is 6.10 l, measured at 1.50 atm. what is the pressure of the gas in
Volgvan

Answer:

713.96mmhg

Explanation:

p1v1=p2v2

6.10×1.50/9.74

=0.939atm

=0.939*760

=713.96mmhg

5 0
2 years ago
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