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
NNADVOKAT [17]
2 years ago
11

Wes melted some cheese over some tortilla chips to make nachos.

Chemistry
2 answers:
Advocard [28]2 years ago
7 0
It has a different shape
OLEGan [10]2 years ago
4 0

Answer:

A

Explanation:

Look through the answer choices:

A. This is definitely possible. The solid cheese was likely a solid square, but the melted cheese probably became a "blob", with no real shape - amorphous almost.

B. Unlikely; the cheese is still cheese. It didn't go through any chemical change that would affect its properties, so solid and melted cheese will taste the same.

C. Unlikely; substances only change color when they go through a chemical change. However, change of matter (melting, in this case) is a physical change, so the color should still be the same: if the solid was yellow, the melted cheese will also be yellow.

D. Wrong; when substances change state of matter, their masses don't change. Why? Mass is the measure of the amount of matter in a substance. The melted form of a substance has the same amount of matter as the solid form.

Thus, the answer is A.

Hope this helps!

You might be interested in
How do unbalanced forces affect its motion when the object is at rest?
Eddi Din [679]
<span>An unbalanced force acting on a body at rest will change the motion of the body. The of motion is measured by its momentum.</span>
4 0
2 years ago
In a particular breed of cattle a black coat is dominant over a red coat if a cow with the red coat is crossed with the black ba
Furkat [3]
It's D because a dominant Gene will take over a recessive
4 0
2 years ago
Question 2 (Multiple Choice Worth 2 points)
faust18 [17]

Answer:

\pi r²  x h

Explanation:

A can is cylindrical in nature. Using the formula of the volume of the can, we can find this unknown volume.

The volume of cylinder is given as:

   Volume of a cylinder  = Area x height

  Volume of  a cylinder = \pi r²  x h

Therefore density of the can;

      Density  = \frac{mass}{volume}

6 0
3 years ago
When 2.5 g of blue copper(ii) sulfate crystals were heated, 1.6 g of a white solid were left in tube A
Zinaida [17]

Answer:

b po answerpa brainlest

8 0
3 years ago
Which statement is correct about the rate of chemical reactions?
ratelena [41]

Answer:

It increases when a catalyst is added.

Explanation:

The following factors control reaction rates:

1. Nature of reactants

2. Concentration of the reactants or pressure of gaseous

3. Temperature

4. Presence of catalyst

5. Sunlight

The addition of a foreign body to a reaction may influence the speed of the reaction. If a foreign body increases the rate of reaction, it is a called a positive catalyst or simply a catalyst. A negative catalyst is called an inhibitor.

A catalyst is a substance that is introduced into a chemical reaction to change the rate of the reaction without itself being affected at the end of the reaction.

Catalysts helps to reduce reaction time of many slow reactions. Most catalysts are specific in their actions and works on certain reactions or substrates.

Temperature change has a considerable effect on reaction rates since temperature is directly proportional to the average kinetic energy of reacting particles. Generally, reaction rate varies as temperature directly.

8 0
3 years ago
Other questions:
  • An atom had an average atomic mass of about 63.5 amu. What is the chemical symbol for the atom?
    14·1 answer
  • Based on its position on the periodic table, Na is a __ at room temperature.
    5·2 answers
  • Which statement is the best example of pseudoscience? (1 point) Scientists have observed many constellations in our universe. Mo
    6·2 answers
  • When you hear the word solution, you tend to think of a liquid. However, a solution can be a homogeneous mixture of any phase. T
    15·1 answer
  • Which lists the elements in order from most conductive to least conductive?
    14·2 answers
  • There are four stations in the laboratory in which students are measuring the densities of different objects. Data for each obje
    12·1 answer
  • Which of the following behaviors would best describe someone who is listening and paying attention? a) Leaning toward the speake
    12·1 answer
  • Which phrases describe the open-ocean zone? Check all that apply.
    5·2 answers
  • A student places 6.00 cups of water in a beaker. Two cups of water have the weight of 1.00 pounds. How much heat is needed to ra
    15·1 answer
  • NaClO4/ HCIO4 is a buffer system ​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!