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
m_a_m_a [10]
3 years ago
13

What are valence electrons and why are they so important in chemistry?

Chemistry
2 answers:
natka813 [3]3 years ago
7 0
Valence electrons is an electron that can participate in the formation of a chemical bond.Also, valence electrons have the ability to absord or release energy in the form of a photon. Valence electrons are in the energy level that is farthest aways from the nucleus. The valence electrons are the ones, that in a chemical reaction, are gained, lost or shared.

stealth61 [152]3 years ago
3 0

valance electrons that reside in the outermost shell of an atom in the highest energy level. They are important to atoms because the fewer valence electrons that the atom holds, it becomes less stable.

I take honors chemistry I hope this helps.

You might be interested in
Calculate the number of mol of solute in 8.00 × 102 mL of 0.250 M HCl.
Alenkasestr [34]

Moles = Volume*Molarity

           = 0.008*0.250

           = 0.002 mol

8 0
3 years ago
What type of bond forms between two water molecules​
Ronch [10]
In H2O molecule, two water molecules are bonded by a Hydrogen bond but the bond between two H - O bonds within a water molecule are covalent
7 0
4 years ago
Read 2 more answers
0.475 g H, 7.557 gS, 15.107 g O. Express your answer as a chemical formula.
max2010maxim [7]

Answer:

H₂SO₄

Explanation:

We have a compound formed by 0.475 g H, 7.557 g S, 15.107 g O. In order to determine the empirical formula, we have to follow a series of steps.

Step 1: Calculate the total mass of the compound

Total mass = mass H + mass S + mass O = 0.475 g + 7.557 g + 15.107 g

Total mass = 23.139 g

Step 2: Determine the percent composition.

H: (0.475g/23.139g) × 100% = 2.05%

S: (7.557g/23.139g) × 100% = 32.66%

O: (15.107g/23.139g) × 100% = 65.29%

Step 3: Divide each percentage by the atomic mass of the element

H: 2.05/1.01 = 2.03

S: 32.66/32.07 = 1.018

O: 65.29/16.00 = 4.081

Step 4: Divide all the numbers by the smallest one

H: 2.03/1.018 ≈ 2

S: 1.018/1.018 = 1

O: 4.081/1.018 ≈ 4

The empirical formula of the compound is H₂SO₄.

7 0
3 years ago
Pleeeeeeeeeeeeeeeeeeas help
SIZIF [17.4K]

Answer:

For young organic materials, the carbon-14 (radiocarbon) method is used. The effective dating range of the carbon-14 method is between 100 and 50,000 years.

Explanation:

The answer is the explanation.

4 0
2 years ago
The mass of a substance is 27.46 g and its volume is 3.42 mL. What is the density of the substance? (hint: density = mass ÷ volu
marin [14]

Answer:

<h2>8.03 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question we have

density =  \frac{27.46}{3.42}  \\  = 8.029239

We have the final answer

<h3>8.03 g/mL</h3>

Hope this helps you

7 0
3 years ago
Read 2 more answers
Other questions:
  • HIPVs can cause what two more severe illnesses?
    11·1 answer
  • In 1995, 78 women were enrolled in chemistry at a certain high school while 162 men were enrolled. What was the percentage of wo
    14·2 answers
  • Draw an alkyl bromide with proper stereochemistry that can be used to synthesize the given alkene as the exclusive product via a
    7·1 answer
  • A sample tube consisted of atomic hydrogen in their ground state. A student illuminated the atoms with monochromatic light, that
    13·1 answer
  • What is the mass in grams of 1.8 mol of Magnesium Sulfide?
    13·1 answer
  • A 59.7 g piece of metal that had been submerged in boiling water was quickly transferred into 60.0 mL of water initially at 22.0
    6·1 answer
  • A sample of a certain isotope has an initial activity of 40,000 cpm. After 24.8 days, the activity is 2500 cpm. What is the half
    15·1 answer
  • In a presentation about measuring mass, one of your classmates states, "Two objects of the same size will always have the same m
    14·1 answer
  • A hiker climbs to the top of a mountain at rate of 0.5 me/hr. What are the speed and velocity of the hiker?
    15·1 answer
  • What mass of CaCl2 (in g ) should the chemist use?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!