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
VARVARA [1.3K]
3 years ago
10

Ciara’s bike has rusted, which means that the iron in the metal changed to rust.

Chemistry
2 answers:
erma4kov [3.2K]3 years ago
8 0

Answer:

c

Explanation:

seraphim [82]3 years ago
4 0

Answer: C.

Explanation:

The rusting of Clara's bike in which iron changes to rust is a chemical change. In a chemical change: the process is not easily reversible.

You might be interested in
Be sure to answer all parts. Consider the reaction A + B → Products From the following data obtained at a certain temperature, d
worty [1.4K]

Answer : The order of reaction with respect to A is, first order reaction.

The order of reaction with respect to B is, zero order reaction.

The overall order of reaction is, first order reaction.  

Explanation :

Rate law is defined as the expression which expresses the rate of the reaction in terms of molar concentration of the reactants with each term raised to the power their stoichiometric coefficient of that reactant in the balanced chemical equation.

For the given chemical equation:

A+B\rightarrow Products

Rate law expression for the reaction:

\text{Rate}=k[A]^a[B]^b

where,

a = order with respect to A

b = order with respect to B

Expression for rate law for first observation:

3.20\times 10^{-1}=k(1.50)^a(1.50)^b ....(1)

Expression for rate law for second observation:

3.20\times 10^{-1}=k(1.50)^a(2.50)^b ....(2)

Expression for rate law for third observation:

6.40\times 10^{-1}=k(3.00)^a(1.50)^b ....(3)

Dividing 1 from 2, we get:

\frac{3.20\times 10^{-1}}{3.20\times 10^{-1}}=\frac{k(1.50)^a(2.50)^b}{k(1.50)^a(1.50)^b}\\\\1=1.66^b\\b=0

Dividing 1 from 3, we get:

\frac{6.40\times 10^{-1}}{3.20\times 10^{-1}}=\frac{k(3.00)^a(1.50)^b}{k(1.50)^a(1.50)^b}\\\\2=2^a\\a=1

Thus, the rate law becomes:

\text{Rate}=k[A]^1[B]^0

\text{Rate}=k[A]

Thus,

The order of reaction with respect to A is, first order reaction.

The order of reaction with respect to B is, zero order reaction.

The overall order of reaction is, first order reaction.

7 0
3 years ago
Who want's to talk there is nothing to do​
Kamila [148]

Answer:

bet bet

Explanation: I'm abby lol

4 0
3 years ago
Read 2 more answers
The theory general relativity was discovered by who
svetoff [14.1K]
<span>The theory general relativity was discovered by Albert Einstein </span>
4 0
3 years ago
Match these items with their examples.
postnew [5]
Salt=compound, soda=liquid solution, aluminum foil=element, milk=colloid,
steel=solid solution
8 0
3 years ago
Read 2 more answers
Force necessary to change an object's motion
igomit [66]
Yes force is necessary
8 0
3 years ago
Other questions:
  • HYDROGEN PEROXIDE WITH CONCENTRATION OF
    5·1 answer
  • HURRY PLEASE HELP <br><br> 5 x 10^4 ÷ 2.5 x 10^2 =
    14·1 answer
  • Which element is a metalloid out of aluminum, arsenic, carbon, and helium?
    13·1 answer
  • The combustion of a sample of butane, C4H10 (lighter fluid), produced 2.46 grams of water. 2 C4H10 + 13 O2 -------&gt; 8 CO2 + 1
    12·1 answer
  • Which statements about thermal energy are true? Choose all answers that are correct. A. Temperature is a measure of the average
    8·1 answer
  • Which of the following is an example of a genetically modified crop?
    15·2 answers
  • An electrical company charges 15 p per unit of energy (kWh).
    14·1 answer
  • Which of the following options best explains how less chlorophyll would affect the process of photosynthesis in plants?
    11·1 answer
  • How many moles of sand (SiO2) are in 30 g of sand?
    14·2 answers
  • Fermions are force carriers. True False
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!