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
Stella [2.4K]
2 years ago
8

Which of the following elements matches the criteria below?

Chemistry
1 answer:
Tems11 [23]2 years ago
4 0

Answer:

The answer to your question is below

Explanation:

1. Found in period 2. All the elements in the list are found in period 2.

a. F   This option is correct

b. Be  Beryllium is located in period two.

c. O  also oxygen is found in period 2.

d. C Carbon is found in period 2.

2.- Can gain lose 4 electrons to become its nearest stable noble gas. Only Carbon.

a. F    This option is wrong, F becomes stable when it gains 1 electron.

b. Be  Beryllium becomes stable when it loses 2 electrons.

c. O  Become stable when it gains 2 electrons.

<u>d. C </u><u>Become stable when it gains or loses 4 electrons.</u>

You might be interested in
1)¿Como estoy siendo responsable con el cuidado de mi salud y de los demás , ya sea en casa o si algo a realizar alguna activida
erica [24]

Answer:

The most effective strategy to control the spreading of some infections is through social distancing.

Explanation:

Since we don't have an effective treatment to stop the infection of some pathogens including the recent pandemic SARS-Cov 2 virus, it is imperative to prevent it from spreading

4 0
3 years ago
What relationship exists between an enzyme and a catalyst?
shepuryov [24]

A catalyst is a chemical that increases the rate of a chemical reaction without itself being changed by the reaction. The fact that they aren't changed by participating in a reaction distinguishes catalysts from substrates, which are the reactants on which catalysts work. Enzymes catalyze biochemical reactions.

5 0
2 years ago
Read 2 more answers
PLEASE HELP
DENIUS [597]

I believe that it is B

3 0
2 years ago
Which of the following chemical reactions represents an acid-base reaction?
LenKa [72]

Answer:

HBr + KOH -> KBr + H₂O

Explanation:

Acid-base reactions always produce a salt [KBr] and water [H₂O].

5 0
2 years ago
0.005 molar Ca(OH)2 solution is used in the titration.calculate the pH oh solution
Rus_ich [418]

Ca(OH)₂: strong base

pOH = a . M

a = valence ( amount of OH⁻)

M = concentration

Ca(OH)₂ ⇒ Ca²⁺ + 2OH⁻ (2 valence)

so:

pOH = 2 x 0.005

pOH = 0.01

pH = 14 - 0.01 = 13.99

6 0
2 years ago
Other questions:
  • As a liquid boils at its normal boiling point, it's temperature..1) remains the same2) increases 3) decreases
    15·1 answer
  • The combustion of carbohydrates and the combustion of fats are both exothermic processes, yet the combustion of carbohydrates is
    9·1 answer
  • 3. Why does å star begin shining?
    13·2 answers
  • Is H2O a polar or non polar compound?
    8·2 answers
  • Please Help Q 4.How many moles are there in 2.4 x 10 24 atoms of He?
    11·2 answers
  • In the chemical formula 3nh4, how many total atoms of hydrogen (h) are there? 1 4 12
    14·1 answer
  • If 5 milliliters of a liquid has a mass of 10 grams what is the density of the liquid
    6·1 answer
  • Short Answer/Essay
    10·2 answers
  • Give the name of this alcohol.
    12·1 answer
  • 4Al(s) + 30₂(g) → 2Al2O3 (s)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!