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
g100num [7]
3 years ago
11

!!Please Help!!

Chemistry
2 answers:
MAXImum [283]3 years ago
7 0
I am pretty sure it is Nitrogen and oxygen I hope this helps
Kisachek [45]3 years ago
6 0

Answer:

Nitrogen (N) and Oxygen (O)

Explanation:

Nitrogen (N) has five valence electrons, so it needs three more valence electrons to complete its octet. Two nitrogen atoms will combine. Each will share three electrons to form three covalent bonds, i.e., a triple bond, resulting in a nitrogen molecule.

The valency of oxygen (O) is two, which means that it requires two electrons to complete its outermost (valence) shell. Therefore, two oxygen atoms will combine and share their two valence electrons, resulting in a double bond.

You might be interested in
Which particles are transferred during a redox reaction
Molodets [167]

Answer:

Most oxidation-reduction (redox) processes involve the transfer of oxygen atoms, hydrogen atoms, or electrons, with all three processes sharing two important characteristics: (1) they are coupled—i.e., in any oxidation reaction a reciprocal reduction occurs, and (2) they involve a characteristic net chemical change— .

3 0
3 years ago
What is the formula mass of the fictitious compound: AB2?
Rus_ich [418]
For a molecule AB2, 3.5g of A represents one molar fraction, and 8.00g B represents 2 molar fractions (or 4.0+4.0). Therefore, a direct ratio can be given as 3.5:4.0, or 1:1.14. This means a molecule AnBm will give a mass ratio for A:B of n:1.14xm

For a molecule AB, for every 1g of A, you will have 1.14g of B.

For a molecule AB2, for every 1g of A, you will have 2.28g of B.

For a molecule A2B3, for every 1g of A, you will have (1.14x3/2) 1.71g of B.
3 0
3 years ago
Poor thermal conductors. Poor electrical conductors. Brittle solids - not malleable or ductile. Little or no metallic luster. Ga
bija089 [108]
These characteristics describe a nonmetal.
8 0
3 years ago
What is the correct reaction for the dissociation (ionization) for a weak acid?
slava [35]

Answer: HA + H2O ⇌ H3O+ + H- (option #4)

Explanation: Since the acid is weak you have to use a ⇌ (equilibrium) sign. Equilibrium is denoted in a chemical equation by the ⇌ symbol. Also, when any acid dissolves into water, it produces hydronium (H3O+ or H+). Therefore, the fourth chemical reaction is your answer.

7 0
3 years ago
What is the mass in grams of 4.50x10^16 atoms of K
vredina [299]

Answer:

The answer to your question is 2.92 x 10⁻⁶ g

Explanation:

Data

mass of K = ?

atoms of K = 4.50 x 10¹⁶

Process

To answer this question just remember that the atomic mass of any element is equivalent to Avogadro's number.

1.- Look for the atomic number of Potassium

Atomic number = 39.10 g

2.- Use proportions and cross multiplication

                 39.10 g of K --------------- 6.023 x 10²³ atoms

                      x              ----------------4.50 x 10¹⁶ atoms

                            x = (4.50 x 10¹⁶ x 39.10) / 6.023 x 10²³

-Simplify

                            x = 1.7595 x 10¹⁸ / 6.023 x 10²³

-Result

                            x = 2.92 x 10⁻⁶ g

7 0
3 years ago
Other questions:
  • The tarnish that forms on objects made of silver is solid silver sulfide; it can be removed by reacting it with aluminum metal t
    12·1 answer
  • Atomic numbers of atoms of elements _____ as you read _____ along each row of the periodic table of the elements.
    15·2 answers
  • How would you prepare 2.00 l of a 0.25 m acetate buffer at ph= 4.50 from concentrated acetic acid (17.4 m) and 1.00 m naoh? the
    14·1 answer
  • Why is the inner core under more pressure than the outer core
    6·2 answers
  • What is the definition of the word colloid?
    15·1 answer
  • What is the total number of atoms in the following formula? CaBr2
    11·1 answer
  • How many excess electrons must you add to an object to give it a charge of -6.50 μc?
    10·1 answer
  • Another name for light is ________.
    13·1 answer
  • Explain in terms of atomic structure, why cesium has a lower first ionization energy than rubidium. Determine the family/group i
    10·1 answer
  • Write a scientific argument that addresses the question: Which suspect is most likely to have made the hydrofluoric acid? First,
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!