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
kirill [66]
3 years ago
11

2. How would type of substance affect the rate of reaction?

Chemistry
1 answer:
nasty-shy [4]3 years ago
5 0

Answer: IN terms of the collision theory, increasing the concentration of a reactant increases in the number of collisions between the reacting species per second and therefore increases the reaction rate.

Explanation: hope u get it right

You might be interested in
Photosynthesis is the process by which most living things convert the chemical energy in glucose into more accessible chemical e
kotykmax [81]
The correct answer is A
3 0
3 years ago
The concentration of Rn−222 in the basement of a house is 1.45 × 10−6 mol/L. Assume the air remains static and calculate the con
bonufazy [111]

<u>Answer:</u> The concentration of radon after the given time is 3.83\times 10^{-30}mol/L

<u>Explanation:</u>

All the radioactive reactions follows first order kinetics.

The equation used to calculate half life for first order kinetics:

t_{1/2}=\frac{0.693}{k}

We are given:

t_{1/2}=3.82days

Putting values in above equation, we get:

k=\frac{0.693}{3.82}=0.181days^{-1}

Rate law expression for first order kinetics is given by the equation:

k=\frac{2.303}{t}\log\frac{[A_o]}{[A]}

where,  

k = rate constant = 0.181days^{-1}

t = time taken for decay process = 3.00 days

[A_o] = initial amount of the reactant = 1.45\times 10^{-6}mol/L

[A] = amount left after decay process =  ?

Putting values in above equation, we get:

0.181days^{-1}=\frac{2.303}{3.00days}\log\frac{1.45\times 10^{-6}}{[A]}

[A]=3.83\times 10^{-30}mol/L

Hence, the concentration of radon after the given time is 3.83\times 10^{-30}mol/L

7 0
3 years ago
Why is Mg++ smaller than Mg atom?​
Evgen [1.6K]

Answer:

The magnesium ion is much smaller than the magnesium atom because magnesium atom contains more electrons as compared to magnesium ion. Explanation: ... Whereas when an atom tends to lose an electron then it acquires a positive charge and size of the atom tends to increase.

7 0
3 years ago
Read 2 more answers
What does optimal foraging mean?
vovikov84 [41]

Answer:

obtain (food or provisions)

Explanation:

example: a girl foraging grass for oxen

6 0
3 years ago
A solution at 25 ∘C has pOH = 10.53. Which of the following statements is or are true? The solution is acidic. The pH of the sol
Lady bird [3.3K]

Answer:

The true statements are:

The solution is acidic

The pH of the solution is 14.00 - 10.53.

10^{-10.53}=[OH^-]

Explanation:

The pH of the solution is defined as negative logarithm of hydrogen ion concentration present in the solution .

pH=-\log[H^+]

  • The pH value more 7 means that hydrogen ion concentration is less ,alkaline will be the solution.
  • The pH value less 7 means that hydrogen ion concentration is more ,acidic will be the solution.
  • The pH value equal to 7 indicates that the solution is neutral.

The pOH of the solution is defined as negative logarithm of hydroxide ion concentration present in the solution .

pOH=-\log[OH^-]

The pOH of the solution = 10.53

10.53=-\log[OH^-]

10^{-10.53}=[OH^-]

The pH of the solution = ?

pH+pOH=14

pH=14-pOH=14-10.53=3.47

Here, the pH of the solution is less than 7 which means that solution acidic.

8 0
2 years ago
Other questions:
  • Which of the following shows both the correct formula and correct name of an acid?
    13·2 answers
  • Which has more moles of carbon atoms, 169.2g of vitamin B6 or 176.1g of vitamin C?
    5·1 answer
  • Imagine a beaker divided down the center by a rigid membrane that is freely permeable to water but impermeable to glucose. Side
    14·1 answer
  • Weighted averages, help please
    5·1 answer
  • Why did the can not become instantly crushed when plunged in the ice water when it was heated without any water inside?
    6·1 answer
  • What's the energy transformation take place in electric kettle? ​
    8·1 answer
  • What is the relationship between kinetic energy and velocity ?
    13·1 answer
  • را
    11·1 answer
  • The atomic mass of an element is measured relative to the mass of *
    14·2 answers
  • You are starting a new item and after reading the first part you realize you have no idea how to go about answering it. What sho
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!