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 balloon is floating around outside your window. The temperature outside is 31 ∘C , and the air pressure is 0.700 atm . Your ne
DochEvi [55]

Answer:

the volume of gas inside this balloon = 146.3 L

Explanation:

Given that:

The temperature T = 31 °C = ( 31 + 273.15 )K = 304.15 K

The air pressure P = 0.700 atm

number of moles of gas n = 4.10 moles

Gas constant = 0.0821 L atm/K/mol

The objective is to calculate the volume of the gas inside the ballon.

Using the Ideal gas equation

PV = nRT

V = nRT/P

V = (4.10×0.0821×304.15)/0.700

V = 102.3799/0.700

V = 146.257 L

V = 146.3 L

Thus, the volume of gas inside this balloon = 146.3 L

3 0
3 years ago
If a gas is compressed from 4 L to 1 L and the temperature remains constant, what happens to the pressure?
Luba_88 [7]
If T=const
P1V1=P2V2
P1*4L=P2*1L
P2=4P1
pressure increases by factor of 4
4 0
3 years ago
Read 2 more answers
Acidic substances will taste _____
choli [55]

Answer:False, we can sense four tastes, namely salty, sweet, sour and bitter. Acids taste sour. If we want to know if something is an acid, we can just taste it.

Explanation:

5 0
3 years ago
Do all dipole-dipole forces have the same strength?
n200080 [17]
Inter molecula force 
1- hydrogen bond 
2- ion bond 
3- dipole dipole 
4- dipole bond or van der wael 
but not all dipole dipole has the same strength 
6 0
3 years ago
What is the difrence beetween thermal energy and temperature
bagirrra123 [75]

Answer:

Hope this helps

Explanation:

Thermal energy, which is more commonly known as heat, is a form of energy. It is measured in joules. Thermal energy is an internal energy for a given system. Thermal energy is the cause for the temperature of a system.

Temperature is the measureable thermal property of a system. It is measured in Kelvin, Celsius, or Fahrenheit. The SI unit for temperature measurement is Kelvin.

Differences:

Thermal energy is not a directly measurable quantity whereas temperature is a measurable quantity.

• The temperature of an object can take negative values depending on the unit system used to measure the temperature, but the thermal energy of a system cannot be negative.

• Temperature is measured in Kelvin whereas thermal energy is measured in Joule.

• An object can lose or gain thermal energy in a state transition without changing the temperature of the system.

6 0
4 years ago
Read 2 more answers
Other questions:
  • A flexible container is put in a deep freeze. Its original volume is 3.00 m3 at 25.0°C. After the container cools, it has shrunk
    12·1 answer
  • The formula mass of a compound is the A) sum of the atomic masses of its atoms B) sum of the atomic numbers of its atoms C) prod
    9·1 answer
  • Which chemical equation correctly represents the synthesis of calcium sulfite from calcium oxide and sulfur dioxide?
    9·2 answers
  • Which of the following is a property of an ionic compound?
    9·1 answer
  • Which Domains would you find single cell organisms
    10·1 answer
  • If some red cabbage indicator is added to a solution with an unknown ph and the color of the indicator turn to blue what can be
    13·1 answer
  • Place books, purses, and such items in the designated storage area. Take only laboratory Manuel’s and notebooks into the work ar
    13·2 answers
  • HELP ASAP!! WILL GIVE BRAINLEST!!
    13·2 answers
  • A sample of gas in a balloon has an initial temperature of 25 °C and a volume of 1.65x103 L. If the temperature changes to 77 °C
    7·1 answer
  • Why is it that the higher the molecular mass of the alkane, the higher the boiling point? Refer to intermolecuar forces and ener
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!