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
Over [174]
3 years ago
9

Define symbole and valeny.​

Chemistry
1 answer:
Alexxx [7]3 years ago
3 0

Answer:

Chemical symbol

This is used to identify an element without having to write the full name and as such is a designation for the element. It is used in chemical reactions and is usually either one or two letters. Some symbols are, Iron - Fe, Hydrogen - H and Oxygen - O.

Valency

This refers to the capacity of an element to combine with another to form a compound. It is measured by the number of electrons that an atom of an element gains, looses or shares when a chemical reaction involving it takes place.

You might be interested in
If a balloon containing 3000 L of gas at 39 C and 99 k Pa rises to an altitude where the pressure is 45.5 kPa and the temperatur
mihalych1998 [28]

Answer:

The new volume of the balloon will be 6046.28 L

Explanation:

Initial pressure (P1) = 99 kpa

initial volume (V1) = 3000 L

Initial temperature = 39 C = 39 + 273 = 312 K

Final pressure (P2) = 45.5 kpa

Final temperature = 16 C = 16 +273 = 289K

Final volume = ????

To calculate the final volume using the general gas equation

                  P1 V1 / T1  = P2 V2 / T2

make V2 the subject of the formular

                   V2 = 99000 ×3000× 289 / 45500×312

                   V2 = 85833000 /14196

                     V2 = 6046.28 litres

5 0
3 years ago
A carbon atom has six electrons. How are these electrons shared in its atomic orbital shells?
umka21 [38]
The correct response is A. The inner she'll contains 2 electrons and the outer shell contains 4 electrons.
6 0
3 years ago
Read 2 more answers
How many liters is 3.3 moles of a gas?
andrezito [222]

Answer:

224.1

Explanation:

3 0
3 years ago
Consider the elements carbon, C and silicon, Si.
Aneli [31]

Answer:

and

Explanation:

All the carbon group atoms, having four valence electrons, form covalent bonds with nonmetal atoms; carbon and silicon cannot lose or gain electrons to form free ions, whereas germanium, tin, and lead do form metallic ions but only with two positive charges

the similarities is that Both carbon and silicon commonly form compounds, easily sharing electrons with other elements. Carbon will make multiple bonds with other carbon molecules by forming single, double and triple covalent bonds. ... Carbon and silicon are often combined, with carbon serving as silicon's backbone.

3 0
3 years ago
If some red cabbage indicator is added to a solution with an unknown ph and the color of the indicator turn to blue what can be
atroni [7]

Answer:

Neutral solution, pH of 7.

Explanation:

Red cabbage is a natural indicator which gives red color when an acid is added, green color when a base is added and <u>it gives blue color when a neutral solution is added. </u>

<u>Given that when some red cabbage indicator is added to a solution , it turns blue which means that the solution is a neutral solution. Neutral solution have a pH of 7.</u>

8 0
3 years ago
Other questions:
  • Which statement is an opinion?
    8·2 answers
  • Consider a solution consisting of the following two buffer systems:
    13·1 answer
  • If two hydrogen (H) atoms combined to form a helium (He) atom, a ________ reaction has occurred.
    13·1 answer
  • If the percentage ionization of an 0.10 M acid is 3.0%, what is its pH
    9·1 answer
  • What types of properties change during a chemical reaction?
    5·2 answers
  • ammonia reacts with oxygen to produce nitrogen monoxide and water. what volume of nitrogen monoxide will result a complete react
    10·1 answer
  • Which of the following can be observed only in a microscopic view
    13·2 answers
  • The following reaction occurs in aqueous solution: NH4 + (aq) + NO2 - → N2 (g) + 2H2O (l) The data below is obtained at 25°C.
    8·1 answer
  • 3: Consider molecules of hydrogen (tiny ones) and oxygen (bigger ones) in a gas mixture. If they have the same average kinetic e
    7·1 answer
  • 23. Write a balanced net ionic equation for each of the fol- lowing acid-base reactions in water. 21 (a) nitrous acid and barium
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!