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
marysya [2.9K]
3 years ago
14

Which of the following does not change the energy of the reactants relative to the activation energy?

Chemistry
2 answers:
creativ13 [48]3 years ago
6 0

Answer:

Adding a catalyst

Explanation:

  • Activation energy is the minimum amount of energy needed to start a chemical reaction
  • A Catalyst is a material that increases the rate of a reaction by lowering the activation energy. In other words, a catalyst act to provide an alternative route for the reaction which has a lower activation energy.
AfilCa [17]3 years ago
6 0

Answer: Option (c) is the correct answer.

Explanation:

Activation energy is defined as the minimum amount of energy required by reactants to initiate a chemical reaction.

A catalyst helps in increasing the rate of a reaction by lowering the activation energy barrier.

Whereas when we reduce the temperature then there will be decrease in energy of reactant molecules. On the other hand, increasing the temperature will increase the energy of reactants.

Increasing the surface area will not have any affect on activation energy.

Hence, we can conclude that increasing the surface area does not change the energy of the reactants relative to the activation energy.

You might be interested in
ASAP!
Andrei [34K]

Answer:

8.3334%

Explanation:

You have two masses. To find the percent of sodium chloride in water by mass, you divide the mass of NaCl by water. First, make both units the same. Easiest is to convert kg into g. 1.5kg = 1500g

125g NaCl/1500g H2O = 0.0833333333 ==> 8.3334%

5 0
3 years ago
What is the function of the phytoplankton in the ocean ecosystem
Nitella [24]

Phytoplankton is a type of micro algae. This creature is similar to the other plants in the ocean biome. But what makes it special is the fact that it is the main produce in the food web. The plant is so small that it is impossible to see it with the naked eye.

ads

However, that doesn’t remove the fact that phytoplankton contains a huge amount of chlorophyll. Here are the 13 Function of the Phytoplankton in Ocean Ecosystem. Find out what makes this small plant so crucial to the ocean

7 0
3 years ago
A 25.00 g solid sample of Ca(OH)2 was added into 1250 mL of 0.400 M HCl aqueous solution. The temperature of the solution was de
daser333 [38]

Answer:

86.735 kJ

Explanation:

Simply multiply the change in temperature by the Ccal;

(36.6 - 20.0)×5.225 = 86.735

5 0
3 years ago
Identify the reactants in the following equation.
Ratling [72]

Answer:

Li + Cl₂

Explanation:

left side of the arrow are reactants and right side of the arrow are products.

3 0
3 years ago
S<br> SIO₂ +3C Sic +20o<br> Sic ? mass in grams<br> С c-
seraphim [82]

Answer:

26.74g

Explanation:

The equation of the reaction is;

SIO₂ + 3C --> SiC +2CO

From the balanced equation, the relationship between SiC and C is;

3 mol of C produces 1 mol of SiC

Converting mol to mass using; Mass = moles * Molar mass

Mass of SiC = 1 mol * 40.11 g/mol = 40.11g

This means;

3 mol of C produces 40.11g of SiC

2 mol of C produces xg of SiC

3 = 40.11

2 = x

x = 2 * 40.11 / 3 = 26.74g

6 0
3 years ago
Other questions:
  • 2 bromocyclopentanamine structural formula
    13·1 answer
  • How does the periodic table arrange element's atomic number?
    7·1 answer
  • Which conversion factor should you use first to calculate the number of grams of co2 produced by the reaction of 50.6 g of ch4 w
    15·1 answer
  • Which type of reaction occurs when 50mL quantities of 1 M Ba(OH)2 (aq) and H2SO4 (aq) are combined
    7·1 answer
  • If atoms are not destroyed, what happens to them
    11·1 answer
  • Plz help me asap even faster then asap
    14·1 answer
  • Briefly discuss interpretations of your observations and results. Discuss how your observations illustrated LeChatelier's princi
    6·1 answer
  • A block of aluminum occupies a volume of 15.0 cm and weighs 40.5 g. What is its density?
    11·1 answer
  • To plan ahead using REPS and Checks, choose the minimum space cushion needed to maintain folloying distance traveling at 25 MPH
    14·1 answer
  • A way of describing a chemical change that indicates what substances were present before the change and what substances are pres
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!