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
suter [353]
3 years ago
12

Which of the following statements is true?

Chemistry
2 answers:
VikaD [51]3 years ago
8 0

Elements are substances made of only one type of atom is true,

stepladder [879]3 years ago
5 0

Answer:

Elements are substances made of only one type of atom

You might be interested in
How does the process of waste removal in a unicellular organism compare to the waste removal in a multicellular organism
Sonja [21]
The digestive system of multicellular is made up of several organs that work together to break down food so that it may be used in the body. Unicellular organisms have organelles, similar to organs, which help to digest food that will be used by the cell
6 0
3 years ago
3 A roller coaster car travels up a hill until it reaches the top, slowly goes over, and speeds down the hill and through the nu
STALIN [3.7K]

Answer:

3rd law

Explanation:

8 0
3 years ago
Zinc oxide adopts a face-centered cubic arrangement. Both Zinc ions and oxide ions adopt the face-centered cubic arrangement; wi
vichka [17]

Answer:

5.41 ×10⁻²²

Explanation:

We were told right from the question that both the Zinc ions and the Zinc oxide adopts a face-centered cubic arrangement.

Then, the number of ZnO molecule in one unit cell = 4

The standard molar mass of ZnO = 81.38g

Avogadro's constant = 6.023 × 10²³ mole

∴

The mass of one unit cell of zinc oxide can be calculated as:

= \frac{4*81.38}{6.023*10^{23}}

= 5.40461564×10⁻²²

≅ 5.41 ×10⁻²²

∴ The mass of one unit cell of zinc oxide = 5.41 ×10⁻²²

3 0
2 years ago
HELP ASAP
Vera_Pavlovna [14]

Answer:

Energy is transferred from one object to another when a reaction takes place.

Explanation:

Energy comes in many forms and can be transferred from one object to another as heat, light, or motion, to name a few.  

The answer could be It is a well known fact that energy can neither be created and nor be destroyed but can be transformed from one form to another.

Now talking about your example in a typical light bulb electrical energy is converted into light energy and heat energy. Now when the electric current flows through the conductor/filament in the light bulb,this would cause vibrations and the free ions are more likely to go to an higher energy level,and when the ions come back to their original state,the difference in the two energy levels is usually emitted as a photon,thus light energy is obtained and the heat energy is the energy dissipated as a result of flow of electricity through the conductor.

Anything that gets transformed into light energy or in better words ElectroMagnetic Energy would be a result of this.

5 0
3 years ago
Two substances with empirical formula HNO are hyponitrous acid (M = 62.04 g/mol) and nitroxyl (M = 31.02 g/mol).(a) What is the
viva [34]

The molecular formula for hyponitrous acid is H2N2O2. and for nitroxyl is HNO.

The chemical compound HNO is also known as nitroxyl (common name) or Azanon (IUPAC name). In the gas phase, it is widely recognized. In the solution phase, the short-lived intermediate nitroxyl can develop. Nitric oxide (NO) is reduced to form the conjugate base, NO, which is isoelectronic with dioxygen.

By oxidizing hydroxylamine with CuO , HgO, and Ag 2 and by oxidizing hydroxylamine with N2O3 in methyl-alcoholic solution, we can create hyponitrous acid.

Learn more about chemical compound here -

brainly.com/question/12166462

#SPJ4

4 0
1 year ago
Other questions:
  • Write a chemical equation that describes the dissolving of solid magnesium nitrate, Mg(NO3)2, in water.
    11·2 answers
  • What is climate? (site 2)
    5·1 answer
  • Elena held a rock weighing 1 N in her hand. The rock has no velocity. <br> KE________?
    14·1 answer
  • At sea level, where the pressure was 104 kPa and temperature 21.1 ºC, a certain mass of air occupies 2.0 m3 . To what volume wil
    10·1 answer
  • What mass of iron is needed to react with sulfur in order to produce 96 grams of
    12·2 answers
  • An atom has a mass number of 9 and 5 neutrons. What is its atomic number?
    12·1 answer
  • What is the frequency of a photon that has a wavelength of 754 um?​
    8·1 answer
  • Propane can be turned into hydrogen by the two-step reforming process. In the first step, propane and water react to form carbon
    11·1 answer
  • Can someone help me pls I don’t have time Time is almost ran out pls help
    14·1 answer
  • Convert the following into balanced equations:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!