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
strojnjashka [21]
3 years ago
5

Which idea behind the shape of molecules includes the concept that electrostatic repulsion between electron pairs surrounding an

atom causes these pairs to be separated as far as possible
Chemistry
1 answer:
Vladimir79 [104]3 years ago
8 0

Answer:

VSEPR theory

Explanation:

The valence shell electron pair repulsion theory was propounded by Gillespie and Nylom (1957).

The entire idea of the VSEPR theory is that the shape of a molecule depends on the electrostatic repulsion between electron pairs surrounding the central atom in a molecule which causes these pairs to be separated as far as possible.

The shapes of many molecules can be accurately predicted based on this model.

You might be interested in
Question 4 (1 point)
Diano4ka-milaya [45]

In an endothermic reaction products are <u>HIGHER </u>than reactants in potential energy and <u>LESS </u>stable.

Explanation:

Energy is input into the reaction in an endothermic reaction. This means the products are of a higher energy level than the reactants. Therefore the reaction increases Gibb's free energy and reduces entropy. Remember in thermodynamic stability involves an increase in entropy and a decrease in Gibbs free energy. Therefore the products are less stable than the reactants. This is why endothermic reactions do not occur spontaneously like exothermic reactions.

6 0
3 years ago
What are the challenges for a "sustainable" world of lithium ion batteries?
Neporo4naja [7]

The Lithium-ion Battery Problem

Overheating. They overheat and explode if charged too fast.

Short life time. They die after less than 1,000 charge/discharge cycles.

Flammable. They use chemicals that are flammable. ...

Toxic. ...

Underperform in extreme temperatures. ...

Expensive casing. ...

Expensive to transport.

7 0
3 years ago
Scientists often have to deal with numbers that are either very large or very small. For example, the radius of the Sun is appro
alukav5142 [94]

6.96 * 10^5 km for sun radius

0.00019 mm for bacterial cells

6 0
4 years ago
Read 2 more answers
A 25.0 ml sample of water at 90 °c has a mass of 24.12 g. Calculate the density of water at this temperature.
ycow [4]

solution:

Density of water the density of water is greatest at about four degrees C (39.2° F or 277degrees Kelvin) which is a density of 1.000 kg per liter (62.4 pounds per cubic foot). Liquids expand slightly as their temperature is raised, but liquid water is denser than solid water (ice). That is why ice floats: it is less dense than liquid water. That is due to the crystal structure of ice. When water freezes, its volume increases about nine percent. 277 K. Density rho = mass m / Volume V. Water has a density of 1,000 kg/m3 = 1,000 g/L = 1.000 kg/dm3 = 1.000 kg/L = 1.000 g/cm3 = 1.000 g/mL at the temperature of 3.98 degrees Celsius. Temperature in degrees Celsius and the density of water: 1  

At 4 °C, its density is the greatest and is equal to 1000 kilograms per cubic meter (SI unit). At any other temperature, its density is less than 1000 kilograms per cubic meter. The answer "1.0" is wrong. Water is unique in that it is one of the only substances that actually expands and becomes less dense as the temperature increases. Water molecules (H 2 O) have a special shape and arrangement; this is why ice floats above the warmer water on a frozen lake. To convert grams/cm3 or grams/mL (1 cm 3 = 1 mL) into other units, use these conversions: 1 dry ounce = 28.349 grams 1 fluid ounce = 29.574 mL so to go from grams/cm 3 to dry ounces per fluid ounce, multiply by 0.9586.  


5 0
4 years ago
Cora, an electrician, wraps a copper wire with a thick plastic coating. What is she most likely trying to do? keep the electric
Alekssandra [29.7K]

Answer: keep a current from passing out of the wire

Explanation: plastic is an insulator and will not conduct electricity

3 0
4 years ago
Read 2 more answers
Other questions:
  • Superstition or science
    9·1 answer
  • Assume after recording the mass of KHP on the weigh paper it was not completely transferred into the Flask. Your following titra
    10·1 answer
  • What activity is considered a proper laboratory technique chem?
    6·1 answer
  • Please help me on this if you don't mind
    13·1 answer
  • Why is the chemical formula magnesium sulfide written as MgS and NOT Mg2S2?
    11·2 answers
  • Why does increasing the concentrations of two reactants in solution make a
    7·1 answer
  • a) Two common types of commercial glue are epoxy and superglue. Epoxy cannot be dissolved in any solvent, while superglue can be
    15·1 answer
  • Choose a reasonable explanation to account for the differences. There may be more than one possible reason that makes sense, jus
    10·1 answer
  • How many joules of energy are required to melt 423g of water at 0°C?
    8·2 answers
  • (a) Why is the heat of fusion ( ΔHfus )of a substance smaller than its heat of vaporization ( ΔHvap ) ?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!