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
Svet_ta [14]
3 years ago
6

Physical Changes

Chemistry
1 answer:
Talja [164]3 years ago
7 0
C. Physical changes do not change the identity of a substance, only the physical appearance such as shape or form. If you break a pencil in half, it is still composed of the same material and therefore keeps its identity as the substance it was before the physical change. Phase changes, such as ice melting, is also a physical change because it changes form. But ice is still made of H20 just like water and steam are comprised of H20.
You might be interested in
What is reason for changing season of the earth ​
Vlad1618 [11]

Answer:

the reasons for the changes in seasons are: revolution of the Earth

The tilt of the Earth's axis

6 0
2 years ago
Read 2 more answers
Deforestation typically
harkovskaia [24]
<span>B. increases erosion in an area</span>
8 0
2 years ago
What is the mass in grams of 14.2 liters of sulfur dioxide gas at STP?
ICE Princess25 [194]

Answer:

Mass = 40.4 g

Explanation:

Given data:

Mass in gram = ?

Volume of SO₂ = 14.2 L

Temperature = standard = 273 K

Pressure =  standard = 1 atm

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

1 atm × 14.2 L = n × 0.0821 atm.L/ mol.K   × 273 K

14.2 atm.L = n ×  22.41 atm.L/ mol

n = 14.2 atm.L/22.41 atm.L/ mol

n = 0.63 mol

Mass of sulfur dioxide:

Mass = number of moles × molar mass

Mass = 0.63 mol × 64.1 g/mol

Mass = 40.4 g

7 0
2 years ago
Determine the volume of a substance that has a density of 1.84 g/ml and a mass of 12 grams
vazorg [7]
Hey there!:

density = mass / volume

1.84 g/mL =  12 g / V

V =  12 / 1.84

V = 6.521 mL

hope this helps!
             
5 0
2 years ago
Given the incomplete equation representing a reaction:
Akimi4 [234]
O is what should go in the blank. O stands for Oxygen.
3 0
3 years ago
Other questions:
  • If I apply 0.108 kJ of energy in order to increase the temperature of a bar of gold from 30.0°C to 34.7°C, and the specific heat
    15·1 answer
  • Suggest two reasons why copper should not be disposed of in landfill sites
    9·1 answer
  • HELP PLEASE WILL GIVE BRAINLIEST ANSWER
    15·1 answer
  • Which of the following statements is not correct? 0.20 mole of O2 = 6.4 g 0.75 mole of H2CO3 = 47 g 3.42 moles CO = 95.8 g 4.1 m
    15·2 answers
  • Which of the following elements has the highest first ionization energy: Na, Mg, S or Cl?
    12·1 answer
  • True or False
    5·1 answer
  • PREDICT How do you think the atoms in metal elements are different from those in
    9·1 answer
  • The number of grams of helium in a balloon at a pressure of 99.8 kPa, a temperature of 301 K, and a volume of 0.785 L would be
    5·1 answer
  • When the distance from one object to another is changing the object is said to be in
    6·1 answer
  • A gas mixture contains the following gases with the mole fractions indicated:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!