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
olchik [2.2K]
4 years ago
9

Which of the following chemical formulas could represent a stable compound formed with an element "X" from group 1A and Oxygen?

Chemistry
1 answer:
vaieri [72.5K]4 years ago
6 0

Answer:

2. X₂O

Explanation:

  • Elements in group 1A are known as alkali metal. Examples include lithium, sodium, and potassium among others.
  • These elements have one valence electron in the outermost energy level and therefore form cations with a charge of +1.
  • They have a valency of 2.
  • Oxygen, on the other hand,has a valency of 2.
  • Therefore, a chemical formula of a compound formed when an element in group 1A say X reacts with oxygen will be X₂O.
  • To write the formula, we identify the symbol of the elements and their valence.
  • Then the atoms of the two elements exchange their valencies which are written as a subscript on each symbol of an element.
You might be interested in
How many atoms are in a single molecule of FeCl2
Nady [450]
3
One from fe
And two from cl2
7 0
3 years ago
When the temperature of a sample of neon gas increases, what else increases? Distance between the atoms Kinetic energy of the at
Allushta [10]

Answer: Kinetic Energy of the atoms also increases.

Explanation: We are given that the temperature of the gas increases.

Relation between kinetic energy and temperature follows:

K.E._({avg})=\frac{3RT}{2N_A}

where, K = Average Kinetic energy

R = Gas constant

T = Temperature

N_A = Avogadro's number

As seen from the relation above, the Kinetic energy of the gas is directly proportional to the temperature, hence as the temperature increases, kinetic energy of the atom also increases.

4 0
4 years ago
Which of the ffamily contains liquids, solids and gases?
Naddik [55]
The hydrogen one because who doesnt like snoballs'

7 0
4 years ago
• 1) The pressure of a sample of gas in a 2.00-L container is 876 mmHg.
kifflom [539]

Answer:

4380 mmHg

Explanation:

Boyle's Law can be used to explain the relationship between pressure and volume of an ideal gas. The pressure is inversely related to volume, so if volume decrease the pressure will increase. It can be expressed in the equation as:

P1V1=P2V2

In this question, the first condition is 2L volume and 876 mmHg pressure. Then the system changed into the second condition where the volume is 400ml and the pressure is unknown. The pressure will be:

P1V1= P2V2

876 mmHg * 2L = P2 * 400ml /(1000ml/L)

P2= 876 mmHg * 2L / 0.4L

P2= 4380 mmHg

5 0
3 years ago
So how is your day my love <br>​
Shalnov [3]

Answer:

all good. tell me about your day

5 0
3 years ago
Other questions:
  • When considering different hypotheses, usually the ____ one which can account for the ____ is the correct one. |
    11·2 answers
  • How much CO2 is produced from 10g of CH4?
    13·1 answer
  • What is the chemical name for HCI
    10·2 answers
  • Formulate a sample scientific hypothesis
    6·2 answers
  • based on bond energies, what will be the heat of reaction for the formation of 2 moles of hydrogen fluoride from one mole each o
    14·1 answer
  • You may remember that fresh water is the only type of water humans and animals can drink. For this reason, it is essential to li
    9·1 answer
  • The atomic size of zirconium is smaller than
    12·1 answer
  • Meiosis results in what daughter cells
    13·1 answer
  • Cellular respiration is the process by which organisms use oxygen to break down food molecules to get energy for cell functions.
    14·1 answer
  • What would be the vital capacity be for a man that has a tidal volume of 500mL, a residual volume of 1100 mL, an expiratory rese
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!