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
Masteriza [31]
3 years ago
9

What historical event of commercial interest triggered investigation in the science of steam?

Chemistry
1 answer:
Cerrena [4.2K]3 years ago
5 0

Answer: Photosynthesis

Explanation:

You might be interested in
The picture below shows the positions of the Earth, Moon, and Sun during an eclipse.
SVETLANKA909090 [29]

Answer:

it is option c liner eclipse

7 0
2 years ago
Read 2 more answers
Which compound contains ionic bonds?<br> 1. N₂O<br> 2.Na2o<br> 3. co<br> 4.CO2
Molodets [167]
Answer:
2. Na2O

Reasoning:
Na (soduim) is the only metal out of all the elements in the answer choices, and is bonded with oxygen, a nonmetal, therefore creating an ionic bond.
3 0
3 years ago
While mercury is very useful in barometers, mercury vapor is toxic. Given that mercury has a ΔHvap of 59.11 kJ/mol and its norma
padilas [110]

2.38×10^-3

Explanation:

from the question,the we calculate the latent heat of vaporization with the difference in temperature being put into consideration

8 0
3 years ago
When an electron drops from a higher energy level to a lower one, energy is emitted. in comparison, how much energy is required
NNADVOKAT [17]

Energy is released when an electron transitions from one energy level to another. In contrast, the same amount of energy is needed to carry out the process, the other way around, from the bottom elevation to the upper one.

What occurs when an electron transitions from one energy level to another?

  • The energy of the electron drops when it changes levels, and the atom releases photons. The electron emits a photon when it transitions from a greater to a lower energy level. The energy emitted is precisely the energy that is lost when an electron moves to a level with less energy.
  • An atom's electrons have negative energy. The electron must be given energy in order to be removed from the hydrogen atom, as shown by the negative sign. The quantity of energy in the atom will rise by supplying the electron with energy. Similar to how a ball on Earth chooses to rest in valleys rather than hills, the electron wants to spend the majority of its time at a lower energy level.
  • For a brief period of time, the electron remains in an excited state. The energy required to bring the electron to its lower-energy state will be released when the electron transitions between excited and unexcited states.

Learn more about electrons here:

brainly.com/question/1255220

#SPJ4

7 0
1 year ago
Which equation represents a combustion reaction?
Natali [406]
Poop man poop man poop man poop man
3 0
2 years ago
Read 2 more answers
Other questions:
  • What 2 materials mixed together forms a solution?
    10·2 answers
  • If 1 egg and 1/3 cup of oil are needed for each bag of brownie mix, how many bags of brownie mix do you need if you want to use
    9·1 answer
  • Draw the product that is formed when the compound shown below is treated with an excess of hydrogen gas and a platinum catalyst.
    14·1 answer
  • Identify each type of titration curve. note that the analyte is stated first, followed by the titrant.
    14·1 answer
  • What is the formula of the compound vanadium (V) oxide? Use the list of polyatomic ions and the periodic table to help you answe
    13·2 answers
  • A sample has a pH of -0.248 (yes, it really is possible to have a negative pH). Find
    9·1 answer
  • Two students are having a tug of war. The flag on the rope begins at point Y. team A pulls to the left with force of 120 N. Team
    14·1 answer
  • Which of the following are characteristics of a gas? (Select all that apply.)
    9·2 answers
  • What temperature creates hail
    13·1 answer
  • Ughhh ughh ughhhh<br><br><br><br><br><br><br>helppp​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!