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
Olenka [21]
3 years ago
10

Give TWO examples of energy conversion that produces unwanted forms of energy.

Chemistry
1 answer:
34kurt3 years ago
8 0

For example, consider the energy used by an electric fan. The amount of electrical energy used is greater than the kinetic energy of the moving fan blades. Because energy is always conserved, some of the electrical energy flowing into the fan's motor is obviously changed into unusable or unwanted forms.

You might be interested in
Does anyone wanna talk about astrology? ya know zodiac sighns? imma capricorn
pychu [463]

Answer:

the study of the movements and relative positions of celestial bodies interpreted as having an influence on human affairs and the natural world

Explanation:

4 0
2 years ago
Read 2 more answers
The chemical equation provided shows iron rusting to form iron oxide. Use the drop-down menu to choose the coefficients that wil
olchik [2.2K]

4Fe + 3O2 → 2Fe2O3 <or> The chemical formula for rust is Fe2O3. Rust is formed when iron reacts with oxygen in moist air. The following chemical equation represents the reaction: 4Fe + 3O2 → 2Fe2O3. Water is necessary for the oxidation reaction to occur and to facilitate transport of the electrons.

3 0
3 years ago
Read 2 more answers
Candle flames are actually what shape??​
navik [9.2K]

Answer:

teardrop

Explanation:

6 0
3 years ago
Read 2 more answers
In each of the following sets of elements, which one will be least likely to gain or lose electrons?
klasskru [66]
1. The reactivity among the alkali metals increases as you go down the group due to the decrease in the effective nuclear charge from the increased shielding by the greater number of electrons. The greater the atomic number, the weaker the hold on the valence electron the nucleus has, and the more easily the element can lose the electron. Conversely, the lower the atomic number, the greater pull the nucleus has on the valence electron, and the less readily would the element be able to lose the electron (relatively speaking). Thus, in the first set comprising group I elements, sodium (Na) would be the least likely to lose its valence electron (and, for that matter, its core electrons).

2. The elements in this set are the group II alkaline earth metals, and they follow the same trend as the alkali metals. Of the elements here, beryllium (Be) would have the highest effective nuclear charge, and so it would be the least likely to lose its valence electrons. In fact, beryllium has a tendency not to lose (or gain) electrons, i.e., ionize, at all; it is unique among its congeners in that it tends to form covalent bonds.

3. While the alkali and alkaline earth metals would lose electrons to attain a noble gas configuration, the group VIIA halogens, as we have here, would need to gain a valence electron for an full octet. The trends in the group I and II elements are turned on their head for the halogens: The smaller the atomic number, the less shielding, and so the greater the pull by the nucleus to gain a valence electron. And as the atomic number increases (such as when you go down the group), the more shielding there is, the weaker the effective nuclear charge, and the lesser the tendency to gain a valence electron. Bromine (Br) has the largest atomic number among the halogens in this set, so an electron would feel the smallest pull from a bromine atom; bromine would thus be the least likely here to gain a valence electron.

4. The pattern for the elements in this set (the group VI chalcogens) generally follows that of the halogens. The greater the atomic number, the weaker the pull of the nucleus, and so the lesser the tendency to gain electrons. Tellurium (Te) has the highest atomic number among the elements in the set, and so it would be the least likely to gain electrons.
7 0
2 years ago
What is the solute when stirring salt in water until the salt disappears?
Umnica [9.8K]

Answer:

The solute is the substance being dissolved.

The solvent is the substance dissolving the solute.

Therefore, the salt is the solute and the water is the solvent.

Explanation:

The salt is the solute.

3 0
2 years ago
Other questions:
  • What is the temperature change on a 75.0 gram sample of mercury if 480.0 cal of heat are added to it? The specific heat of mercu
    8·1 answer
  • The volume of a fixed amount of gas is double and the absolute temperature os doubled according to the ideas gas law how has the
    9·1 answer
  • Which is a polar molecule?
    8·1 answer
  • Half-reactions can be written to represent all
    10·2 answers
  • What is the average atomic mass of the following isotopic mixture - 42.10 g/mole- 93.50%; 48.30 g/mole 6.200%; 50.40 g/mole - 0.
    12·1 answer
  • Using your knowledge of the difference
    9·1 answer
  • Work = Force x Distance, calculate the amount of work done on an object
    5·1 answer
  • PLEASE HELP!!!<br><br> What are 3 types of heat energy transfer?
    6·2 answers
  • 2 The substance has a mass of 0.50 kg.
    11·1 answer
  • 6. All changes in states of matter (freezing, evaporation, condensation, etc.) are
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!