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
vlada-n [284]
2 years ago
7

Pick 1 answer, please help!

Chemistry
2 answers:
nasty-shy [4]2 years ago
4 0
The the answer is: C
Alexeev081 [22]2 years ago
3 0
The correct answer is option c
You might be interested in
Electronegativities of the elements Na, Al, P, and Cl follow a specific trend across the period. Based on this trend, an electro
Vitek1552 [10]

Answer:

Electronegativity increases across the period on a periodic table.

Explanation:

Electronegativity is the ability of an atom to attract electron to itself.

All elements on the periodic table combines in order to have a complete octet i.e they all want to be like the noble gases, group 0 elements.

This is what drives most atom to combine chemically. By so doing, they either lose or gain electrons.

Cl belongs to the 7th group on the periodic table. It is the second element in this halogen group. Most halogens are notable for their high electronegativity. They have 7 electrons in their outermost shell and would require just an electron to complete their octet.

This makes them highly reactive and combine readily with other elements.

The halogens have a strong attraction for valence electrons. The higher the electronegativity value, the stronger the attraction an atom has for valence electrons.

Most metals like Al and Na are electropositive and readily donates or lose electrons so as to have a complete octet.

8 0
3 years ago
Read 2 more answers
I need to make sure of my answer
choli [55]

Answer:

A) W and X

Explanation:

They are both non metals

3 0
3 years ago
2. Write the formula or name for the following
Tems11 [23]

Answer:

Diphosphorus pentoxide

Carbon dichloride

BCl3

N2H4

Explanation:

These are all covalent compounds. To name covalent compounds, you add prefixes to the beginning of their names depending on what the subscript is of each element. The prefixes are:

1: Mono

2: Di

3: Tri

4: Tetra

5: Penta

6: Hexa

7: Hepta

8: Octa

9: Nona

10: Deca

For example, since the first one is Phopsphorus with a 2 next to it, you add the prefix Di to it.

If the first element in the compound only has one, meaning no number next to it, you do not say mono. This is why we just say "Carbon" for the second one instead of "Monocarbon."

Finally, you always have to end the second element in the compound with "ide." So, "chlorine" becomes "chloride," "oxygen" becomes "oxide," and so on.

7 0
3 years ago
The molecule CH,Cl has four atoms arranged around one central atom. What is the shape of the molecule? (1
balu736 [363]

Answer:

tetrahedral

Explanation:

it sounds like a tetrahedral shape, which is when there are four bonds and no lone pairs around the central atom in the molecule.

6 0
2 years ago
The enthalpy of combustion of naphthalene (MW = 128.17 g/mol) is -5139.6 kJ/mol. How much energy is produced by burning 0.8210 g
bazaltina [42]

The energy produced by burning : -32.92 kJ

<h3>Further explanation</h3>

Delta H reaction (ΔH) is the amount of heat change between the system and its environment

(ΔH) can be positive (endothermic = requires heat) or negative (exothermic = releasing heat)

The enthalpy and heat(energy) can be formulated :

\tt \Delta H=\dfrac{Q}{n}\rightarrow n=mol

The enthalpy of combustion of naphthalene (MW = 128.17 g/mol) is -5139.6 kJ/mol.

The energy released for 0.8210 g of naphthalene :

\tt Q=\Delta H\times n\\\\Q=-5139.6~kJ/mol\times \dfrac{0.8210~g}{128.17~g/mol}~\\\\Q=-32.92~kJ

3 0
3 years ago
Other questions:
  • What is the boiling point elevation when ammonia (NH3) is dissolved in water to form a 3.5 molal solution? Kb for water is 0.52
    6·1 answer
  • The table below shows a comparison of the different gas laws. Some cells have been left blank.
    12·2 answers
  • When aqueous solutions of ________ are mixed, a precipitate forms.
    10·1 answer
  • What type of molecular attraction accounts for the high boiling point of H2O
    10·1 answer
  • What is each vertical column of elements in the periodic table called?
    6·1 answer
  • Which equation represents neutralization?
    6·1 answer
  • What is sound energy?
    6·2 answers
  • Need help with #10 please &amp; thank you!
    13·1 answer
  • What type of reaction is the following
    13·1 answer
  • Identify the Brønsted–Lowry acid and the Brønsted–Lowry
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!