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
Varvara68 [4.7K]
3 years ago
6

Atomic mass number of first 30 elements

Chemistry
1 answer:
dangina [55]3 years ago
4 0

Answer:

Element Atomic Number Atomic Mass

Nickel          27                          58.6934

Cobalt             28                   58.9332

Copper            29                  63.546

Zinc                   30                            65.39

Explanation:

You might be interested in
Select the correct answer.
ankoles [38]

It would still have oceans but no atmospheric water in Earth if no icy debris had arrived.

A.  It would still have oceans but no atmospheric water.

<u>Explanation:</u>

Seas characterize our home planet, covering most of the Earth's surface and driving the water cycle that commands our territory and climate. However, progressively significant still, the narrative of our seas wraps our home in a far bigger setting that ventures profound into the universe and spots us in a rich group of sea universes that range our nearby planetary group and past.

It would in any case have seas yet no air water on Earth if no frigid flotsam and jetsam had shown up. For a long time, it was accepted that the frosty moons were only that - solidified husks, strong to their center. However, lately that thought has steadily been supplanted by a fresher, additionally energizing worldview.

4 0
3 years ago
The dots in these cylinders represent the shape and
Elden [556K]

Answer:

A I think

Explanation:

Because plasma have ions and B is neutralized with two ions

8 0
3 years ago
The radius of a hydrogen atom is 37 pm and its mass is 1.67 × 10-24 g. What is the density of the atom in grams per cubic centim
RoseWind [281]

Answer:

V = 4/3 * 3.1416 * (37x10-10)3

V = 2.12x10-25 cm3

d = m/V

d = 1.67x10-24 / 2.12x10-25 = 7.87 g/cm3

The difference in temperature, let's convert F to ºC:

ºC = -80-32/1.8 = -62.22 ºC

dT = -92.6 + 62.2 = -30.4 ºC

4 0
3 years ago
Read 2 more answers
Calculate the value of the equilibrium constant, Kc, for the reaction below, if 0.208 moles of sulfur dioxide gas, 0.208 moles o
Harman [31]
First, we convert the moles of each substance into the concentration using the volume of the reactor.
[SO₃] = 0.425/1.5 = 0.283 M
[SO₂] = 0.208 / 1.5 = 0.139 M
[O₂] = 0.208/1.5 = 0.139 M
The equilibrium constant is calculated by:
Kc = [SO₃]² / [O₂][SO₂]²
Kc = (0.283)²/(0.139)(0.139)²
Kc = 29.8 = 2.98 x 10¹

The answer is C
8 0
3 years ago
Identify three nonmetal atoms that, when bonded covalently, have an argon electron configuration.
Advocard [28]

Answer:

Phosphorus

Sulphur

And chlorine are non metals when bonded covalently gain electronic configuration of argon

Like PCl3

SO2 and HCl

Explanation:

8 0
3 years ago
Other questions:
  • The halogens like to bond with what other group?
    7·1 answer
  • Explain why a balloon filled with O2 at room temperature collapses when cooled in liquid nitrogen where as balloon filled with H
    12·1 answer
  • A posssible answer to a scientific question is called a
    11·2 answers
  • On a waterslide, describe the kinetic and potential energy you have at the top of the hill and at the bottom of the slide. What
    11·1 answer
  • What are the common uses of acetone and formalin?
    13·2 answers
  • Which of these is common to all chemical changes?
    12·1 answer
  • What is the molarity of 4.0 moles NaCI dissolved in 2.0 L of solution
    11·1 answer
  • When selling on the street, dealers may not know the purity of the ketamine they have, and thus users do not know exactly how mu
    5·1 answer
  • PLSSSS HELP<br> this is science
    9·2 answers
  • What is relation between energy and speed of light
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!