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
anygoal [31]
3 years ago
12

When you strike a match, what do you provide that enables the flame to appear?

Chemistry
1 answer:
Alexeev081 [22]3 years ago
3 0

Explanation:

The minimum amount of energy required by a substance to begin a reaction is known as the activation energy.

Therefore, we can conclude that when you strike a match, you provide activation energy that enables the flame to appear.

Whereas a catalyst helps in increasing the rate of reaction but it does not start the reaction. On the other hand, when reactants combine together then we get products.

Thus, we can conclude that options (a), (b), (c), and (e) are not correct.

Hence, option (d) is the correct answer.

You might be interested in
A closed container is any container sealed by means of a lid or other device that neither liquid nor vapor will escape from at _
alex41 [277]
A closed container is any container sealed by means of a lid or other device that neither liquid nor vapor will escape from at ordinary temperatures. “Ordinary” is the answer, hope this helps! :)
3 0
4 years ago
Read 2 more answers
A certain compound is made up of one phosphorus (P) atom, three chlorine (Cl) atoms, and one oxygen (O) atom. What is the chemic
Karolina [17]
POCl3 is the chemical formula of compound.
3 0
3 years ago
What are the main 3 gases from the greenhouse affect.
andrezito [222]
The primary greenhouse gases<span> in Earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Without </span>greenhouse gases<span>, the average temperature of Earth's surface would be about −18 °C (0 °F), rather than the present average of 15 °C (59 °F).</span>
5 0
4 years ago
Read 2 more answers
Identifying Isotopes
Otrada [13]

Answer:

<em>The parent isotope in the given elements is Radium 226. </em>

Explanation:

The two elements given in the question are radioactive elements radon and Helium which are formed after an Alpha decay happens in the radium 226 to form Radon 222.

Radon has many isotopes out of which here radon 222 is formed which is a noble gas that is odourless colourless but Radioactive.  Again in this reaction helium is formed which is again a noble gas and very light in weight.

5 0
3 years ago
Read 2 more answers
Is the group number the number of electrons on the outermost shell ​
vagabundo [1.1K]
In the column have the same electrons on the outer shell. Which the outer shell electrons are call valence electrons.
6 0
3 years ago
Other questions:
  • What would be another property that we Earthlings could use to classify stars?
    15·1 answer
  • Which element is a halogen?<br> A.argon<br> B.bromine<br> C.calcium<br> D.lithium
    11·2 answers
  • Need help with Chemistry lab
    10·1 answer
  • For each of the following sets of elements, circle the element expected to be most electronegative and draw a box which is expec
    13·1 answer
  • The process by which vesicles move substances out of a cell is
    9·2 answers
  • Ethylene glycol (antifreeze) has a density of 1.11 g/cm3. what is the volume in liters of 3.46 kg of ethylene glycol?
    11·1 answer
  • 2) The fill-in statement, "In describing molecular compounds, the empirical
    9·1 answer
  • Which of the following options best explains how less chlorophyll would affect the process of photosynthesis in plants?
    11·1 answer
  • Give an example of a system that has energy.
    13·2 answers
  • Which of the following is a characteristic of scientific investigation? Group of answer choices It is based on opinion. It is re
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!