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
Oliga [24]
2 years ago
6

Compare the drops of wax that harden in hot water and Cold water.

Chemistry
1 answer:
juin [17]2 years ago
7 0

Answer: They are are simular because when the wax cools down its not hot  or it cools down it is the same with hot water it cools after along while.

Explanation:

You might be interested in
Which of the following are true of phases?Check all that apply.A.The particles in a liquid are in a fixed location.B.Gases have
saw5 [17]

Answer:

The answers are options b , c and d.

Hope this helps.

7 0
2 years ago
Determine a massa de um átomo de carbono12 em gramas
lapo4ka [179]
I believe it would be 1.660539040 × 10−24 gram.
3 0
2 years ago
Read 2 more answers
Electrons in atoms exist in particular energy level. A ___ must be emitted or absorbed to move between energy levels.
svetlana [45]

Answer:

Photon of light

Explanation:

According to Bohr's model of the atom, electrons in atoms are found in specific energy levels. These energy levels are called stationary states, an electrons does not radiate energy when it occupies any of these stationary states.

However, an electron may absorb energy and move from one energy level or stationary state to another. The energy difference between the two energy levels must correspond to the energy of the photon of light absorbed in order to make the transition possible.

Since electrons are generally unstable in excited states, the electron quickly jumps back to ground states and emits the excess energy absorbed. The frequency or wavelength of the emitted photon can now be measured and used to characterize the transition. This is the principle behind many spectrometric and spectrophotometric methods.

8 0
3 years ago
Pre-Lab Study Questions / 9
jok3333 [9.3K]

Answer:

See detailed answer with explanation below.

Explanation:

Valence electrons are electrons found on the outermost shell of an atom. They are the electrons in an atom that participate in chemical combination. Recall that the outermost shell of an atom is also referred to as its valence shell. Let us consider an example; if we look at the atom, sodium-11, its electronic configuration is 2,8,1. The last one electron is the valence electron of sodium which is found in its outermost or valence shell.

Positive ions are formed when electrons are lost from the valence shell of an atom. For instance, if the outermost electron in sodium is lost, we now form the sodium ion Na^+ which is a positive ion. Positive ions possess less number of electrons compared to their corresponding atoms.

Negative ions are formed when one or more electrons is added to the valence shell of an atom. A negative ion possesses more electrons than its corresponding atom. For example, chlorine(Cl) contains 17 electrons but the chloride ion (Cl^-) contains 18 electrons.

In molecular compounds, a bond is formed when two electrons are shared between the bonding atoms. Each bonding atom may contribute one of the shared electrons (ordinary covalent bond) or one of the bonding atoms may provide the both shared electrons (coordinate covalent bond). The shared pair may be located at an equidistant position to the nucleus of both atoms. Similarly, the electron may be drawn closer to the nucleus of one atom than the other (polar covalent bond) depending on the electro negativity of the two bonding atoms.

The electrons are shared in order to complete the octet of each atom by so doing, the both bonding atoms now obey the octet rule. For example, two chlorine atoms may come together to form a covalent bond in which each chlorine atom has an octet of electrons on its outermost shell.

4 0
3 years ago
Mass is measured in= a. Liters b. centimeters c. newtons d. kilograms
ale4655 [162]
Mass is measured in kilograms.
5 0
2 years ago
Other questions:
  • why do u think some consumers believe that labortory testing of a product serves as proof of quality?
    11·1 answer
  • HELP I think its C but I'm not sure
    10·1 answer
  • Metallic element are _____ (conductors or non-conductors), because ________. Nonmetallic elements are generally ____ (conductors
    14·1 answer
  • Sulfuric acid (h2so4) is spilled on a laboratory bench. which chemical would be useful for neutralizing the acid
    13·1 answer
  • A bird has a kinetic energy of 3 J and a potential energy of 25 J. What is the mechanical energy of the bird?
    16·1 answer
  • Which statement best explains how organ systems work together to remove wastes?
    10·1 answer
  • How would the addition of protons affect the concentration of CH3COOH? How would the addition of OH– affect the amount of CH3COO
    14·2 answers
  • What reaction is C+O2=CO2
    9·1 answer
  • How might the molecules inside an ice pack be different from the liquid inside of an insulated cup?​
    5·1 answer
  • 2.0 moles of a monatomic ideal gas undergoes an isobaric process in which the temperature changes from 260 k to 320 k. what is t
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!