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
rosijanka [135]
3 years ago
13

what kind of evidence indicates a chemical change ?... a physical change? you may use examples to show softened.

Chemistry
1 answer:
SOVA2 [1]3 years ago
3 0
Some things that can indicate a chemical change are change of odor, change of color, change in temperature or energy, such as the production or loss of heat. An example could be the rusting of metal, there would be a color change of going from a shiny silver to a dirty, splotchy red color. Some things that indicate a physical change are change of appearance like change of shape, etc. It can also be like a change between a solid to liquid to gas. For example, the cutting of a piece of paper.
You might be interested in
How many grams of NaCl are needed to make 0.800 liter of a 5.00 M solution?
ziro4ka [17]

Answer:

             0.324 g is required to make 5.00 M solution of NaCl in 0.800 L.

Given data:

                 Molarity = 5.00 M

                 Formula Mass = 58.5 g/mol

                 Required volume = 0.800 L

To Find;

               Mass in gram = ?

Solution:

              Formula for calculating mass in gram is given as,

              Mass in gram = Molarity × Formula mass × Volume required / 1000 putting values

              Mass in gram = 5.00 M × 58.5 g/mol × 0.800 L / 1000

               Mass in gram = 0.234 g


6 0
3 years ago
Brainliest get's +20 points!
gizmo_the_mogwai [7]

Answer:

i think thats correcr!

Explanation:

6 0
3 years ago
Where can you find the number of electrons of an<br> element?
andrezito [222]

Answer:

Subtract the charge from the atomic number. When an ion has a positive charge, the atom has lost electrons. To calculate the remaining number of electrons, you subtract the amount of extra charge from the atomic number. In the case of a positive ion, there are more protons than electrons.

Explanation:

5 0
3 years ago
Read 2 more answers
I took 100 micrograms of vitamin d yesterday (13yrs old) is it bad
Amanda [17]

Answer:

take 75 gm or it will be overdose

6 0
2 years ago
Write a paragraph
steposvetlana [31]
I think It’s 55 but that’s just me
6 0
3 years ago
Other questions:
  • At 10°c one volume of water dissolves 3.10 volumes of chlorine gas at 1.00 atm pressure. what is the henry's law constant of cl2
    6·1 answer
  • When a substance burns, a chemical reaction is taking place.<br><br> True<br><br> False
    7·2 answers
  • The volume of a pond being studied for the effects of acid rain is 35 kiloliters (kL). There are 1,000 liters (L) in 1 kL and 10
    10·1 answer
  • Why is it more accurate to say that the concentration of a solution of acetic acid is 0.01 f rather than 0.01 m?
    9·2 answers
  • Need major help. Help me please
    13·1 answer
  • How many hydrogen atoms are missing in ethane compared to ethane
    13·1 answer
  • What happens to the atoms in a scoop of ice cream as it melts?
    14·2 answers
  • When is the generator rotate coil wire magnetic field which is of the following is it produced
    8·1 answer
  • The fuel used to power the booster rockets on space shuttles is a mixture of aluminum metal and ammonium perchlorate. the follow
    9·1 answer
  • 1. When conducting this experiment, some procedures call for heating the substance several times and recording the mass after ea
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!