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
krek1111 [17]
3 years ago
13

What can occur in physical change ?

Chemistry
1 answer:
Alexandra [31]3 years ago
5 0

Within a physical change, an element can change forms, such as going from solid to a liquid through melting. Color change can also occur during a physical change. Physical changes are very different from chemical changes. In a chemical change the element itself changes into something else within a reaction, such as combustion (burning).


Hope this helped

You might be interested in
Question 2
valkas [14]
Maybe propelled like moving forward
6 0
4 years ago
Where is there higher air pressure, above the land or above the water?
vagabundo [1.1K]

Answer:

The air above land also warms faster than air above the sea. Cooler higher pressure air above the ocean moves toward warmer lower pressue air above land.

4 0
3 years ago
Read 2 more answers
Use the following equation to answer question 1-4. Make sure you balance first.
worty [1.4K]
<h3>Answer:</h3>

5.2 mol H₂O

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Chemistry</u>

<u>Stoichiometry</u>

  • Using Dimensional Analysis
<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN - Balanced] 6HCl + Fe₂O₃ → 2FeCl₃ + 3H₂O

[Given] 10.4 mol HCl

<u>Step 2: Identify Conversions</u>

[RxN] 6 mol HCl = 3 mol H₂O

<u>Step 3: Stoichiometry</u>

  1. Set up:                             \displaystyle 10.4 \ mol \ HCl(\frac{3 \ mol \ H_2O}{6 \ mol \ HCl})
  2. Multiply/Divide:               \displaystyle 5.2 \ mol \ H_2O
4 0
3 years ago
PLEASE HELP!!!
kogti [31]
Atomic no = no of electrons present in atom
and atomic mass = no of protons + no of neutrons
6 0
3 years ago
20 g of water. specific heat of water is 4.18 J/x°C. temperature changes from
pashok25 [27]

Answer:

B or the second one

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP!
    7·1 answer
  • Give the formula for the alkyne containing 40 hydrogens
    8·1 answer
  • Which of the followings represents a negatively charged ion
    5·1 answer
  • How many significant figures in 1. 19.99 2. 140486 3. 0.0609 3. 5.08 ?
    11·1 answer
  • Which of these is a base ?<br><br> a.vinegar <br> b.NaOH <br> c.HNO3<br> d.HCI
    14·2 answers
  • When is energy released during a chemical reaction?
    10·2 answers
  • How many electrons in an atom could have these sets of quantum numbers n=7 l=3 ml=-1?
    7·1 answer
  • When Michelle's blood was testedthe chloride level was 0.45 g/dL. . What is this value in milliequivalents per liter? b. Accordi
    14·1 answer
  • Breathing air that contains 4.0% by volume CO2 over time causes rapid breathing, throbbing headache, and nausea, among other sym
    12·1 answer
  • What are the predominant intermolecular forces in: Kr, CBr4, NaF, CH3OH, and ruby? Then rank by increasing boiling point.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!