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
Natalka [10]
3 years ago
13

Melvin is exploring the different kinds of changes that can happen to substances. After reading about the kinds of changes that

occur, he saw some rust on a pipe that was going into his house. What kind of change is the formation of rust?
A.reactant
B.physical
C.chemical
Chemistry
2 answers:
Vlada [557]3 years ago
6 0
I think it’s c because when ever it rains it make medal rust
Alexxandr [17]3 years ago
4 0

Answer:

It is B. physical.

Explanation:

The rust on the pipe is something causes by something, which mean it is physical. Hope this helped you out!!

Have a wonderful day! :D

You might be interested in
Lipids that are liquid at room temperature are called oils <br> a. True <br> b. False
erica [24]
The answer to your question is false.
4 0
4 years ago
Suppose a vodka martini contains 30% alcohol with the remaining portion of the drink composed of water. what is the solute in th
viktelen [127]
Solute - substance that dissolves. 
alcohol - solute
water - solvent
7 0
4 years ago
When 0.215 mol of a gas is placed into a 34.25 mL container at 125.0°C, 1
horrorfan [7]

Answer:

205.12 atm

Explanation:

Using the ideal gas law equation:

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

R = 0.0821 Latm/perK)

T = temperature (K)

n = number of moles (mol)

According to the information in this question;

P = ?

V = 34.25 mL = 34.25 ÷ 1000 = 0.03425L

n = 0.215 mol

T = 125.0°C = 125 + 273 = 398K

Using PV = nRT

P = nRT ÷ V

P = (0.215 × 0.0821 × 398) ÷ (0.03425)

P = 7.025 ÷ 0.03425

P = 205.12 atm

8 0
3 years ago
Overlap of the electron clouds of two atoms results in a(n)
xxMikexx [17]

We know that the electron clouds of two atoms overlapping is a bond, because that signifies that the electrons are being shared in a bond.

So, I'm going to go through some definitions of these different types of bonds, because they have very specific circumstances.

<u>A hydrogen bond is a bond between an electronegative atom and a hydrogen molecule</u> (which is not what this question says, this isn't stated anywhere).

<u>A dipole is a difference in electron density on two different atoms</u> (so this isn't even close to what the question is stating, a dipole is not even a bond)

<u>An ionic bond is an </u><u><em>unequal sharing of electrons</em></u><u> between two atoms </u>(because the question doesn't state this specific fact, then it can't be this option).

By process of elimination, we know the answer is covalent bond, but just in case, we can also look at the definition of a covalent bond: <u>a bond that involves the sharing of electrons between atoms.</u>

That is exactly what the question is asking for! Therefore, your answer is d. covalent bond

8 0
3 years ago
What is the mass measurement shown on the scales of this balance
d1i1m1o1n [39]

Answer:

The correct answer is option C) 73.92

Explanation:

Hi!

Let's solve this!

On the scale we see:

In the first rule the number 70, in the second rule the 3 so we have 73.

In the third rule we see the 9 marked and run two places.

According my vision of the image, we conclude that the correct answer is option C) 73.92

4 0
4 years ago
Read 2 more answers
Other questions:
  • Sandy was cooking beans for dinner and heard they cook faster if baking soda is added to the water. is adding baking soda a good
    15·1 answer
  • What is the name of this molecule?
    12·1 answer
  • Is mixing sodium and water a physical or a chemical change
    14·1 answer
  • True Or False: "the baseball fans are cheering therefore a ball was hit out of the park" is an example of an inference.
    8·1 answer
  • What are thermosetting plastics???​
    5·2 answers
  • Aqueous solutions of ammonium oxalate and lithium acetate react.
    13·1 answer
  • Severe droughts cause some lands to become deserts, and this process leads to
    10·2 answers
  • Where are chemicals found in our home
    9·1 answer
  • Identify the unit that is used for atomic masses
    15·1 answer
  • All of the following are properties of molecular compounds except
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!