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
evablogger [386]
2 years ago
9

Group 2 in the penodic table contains the elements beryllium (Be), magnesium (Mg) , calcium (Ca) , strontium (Sf) )barium (Ba)an

d radium (Ra) What characteristic do these elements share ?
Chemistry
1 answer:
mario62 [17]2 years ago
6 0

Answer:

They are all alkali earth metals.

Explanation:

Their valence shell each has 2 electrons. Also, they are all shiny, silvery-white, somewhat reactive metals at standard temperature and pressure. They form alkaline solutions, hydroxides, when reacting with water and their oxides are found in the earth’s crust.

You might be interested in
Pick the correct pair of species that can form hydrogen bond with water. (A) CH, HCOOH (B) F, HCOOH (C) F .CH,OCH, (D) Both (B)
Xelga [282]

Answer:

(B) F⁻, HCOOH

Explanation:

(A) CH₄, HCOOH

(B) F⁻, HCOOH

(C) F⁻, CH₃-O-CH₃

The hydrogen bonds are formed when the hydrogen is found between two electronegative atoms such as oxygen (O), nitrogen (N) or florine (F).

O····H-O, F····H-O, O····H-N

(A) CH₄, HCOOH

- here methane CH₄ is not capable to form hydrogen bond with water

- formic acid HCOOH can form hydrogen bonds with water

H-C(=O)-O-H····OH₂

(B) F⁻, HCOOH

-both floride (F⁻) and formic acid can form hydrogen bonds with water

F····OH₂

H-C(=O)-O-H····OH₂

(C) F⁻, CH₃-O-CH₃

-  dimethyl-ether CH₃-O-CH₃ is not capable to form hydrogen bond with water

- floride (F⁻) can form hydrogen bonds with water

F····OH₂

4 0
2 years ago
What are 2 comparisons between organisms and music?
Brrunno [24]

Answer:

Explanation:

Can I please have this for some reason all my answers got deleted (I had 28)

Now are gone so you don't have to give thanks just let me get out of the negative. (pls!!)

6 0
2 years ago
Read 2 more answers
The feed to a batch process contains equimolar quantities of nitrogen and methane. write an expression for the kilograms of nitr
timama [110]
1) number of moles of N2 = n/2

2) Number of moles of CH4 = n/2

3) Total number of moles of the mixture = n/2 + n/2 = n

4) Kg of N2

mass in grams = number of moles * molar mass

molar mass of N2 = 2 * 14.0 g/mol = 28 g/mol

=> mass of N2 in grams = (n/2) * 28 = 14n

mass of N2 in Kg = mass of N2 in grams * [1 kg / 1000g] = 14n/1000 kg = 0.014n kg

Answer: mass of N2 in kg = 0.014n kg
3 0
3 years ago
Question 5 of 10
pychu [463]
The answer is D. S2O6
4 0
3 years ago
An astronaut weighs 104 newtons on the moon,where the strength of gravity is 1.6 newtons per kilogram
belka [17]
I'd say he ways about 35 kilograms, but I'm probably wrong, xD

6 0
3 years ago
Read 2 more answers
Other questions:
  • To indicate the pH of a substance, one can use a dye that is both an acid and that appears as different colors in its protonated
    6·1 answer
  • What will be the product of the following acid-base reaction? H3O+(aq) + OH-(aq) ?
    14·1 answer
  • What is a chemical property of mercury?
    10·1 answer
  • Weighted averages, help please
    5·1 answer
  • What is the pH of a solution if the [H3O+] is 6.7*10-4m?
    12·1 answer
  • What is 2000lbs in 1 ton
    6·1 answer
  • A solution of ammonia and water contains 2.60×1025 water molecules and 6.90×1024 ammonia molecules. how many total hydrogen atom
    10·1 answer
  • The energy needed to get a reaction started is the
    10·2 answers
  • Based on its position on the periodic table, which of the following properties should beryllium (Be) have?
    6·2 answers
  • ***Question in photo***<br><br> Is the entropy positive or negative in this question?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!