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
salantis [7]
3 years ago
8

Physical or chemical change? Red and blue food coloring mix to make purple.

Chemistry
1 answer:
aev [14]3 years ago
8 0

Answer:

chemical change

Explanation:

because physical is like if something is happening inside your body

BTW

I hope this helps

You might be interested in
#1: At STP, how many molecules of nitrogen gas are in 22.4 L?
OLEGan [10]

At STP, 1 mol = 22.4

1 mol = 6.022 X 10^ 23

so your answer is right it is B 6.022 X 10^ 23

3 0
3 years ago
Which of the following types of stars is the coolest?
Solnce55 [7]
Idk you didn't be very specific 
7 0
3 years ago
Read 2 more answers
A block of iron has a mass of 826 g. What is the volume of the block of iron whose density at 25°C is 7.9
LuckyWell [14K]

Answer:

105

Explanation:

Density = mass/volume

therefore volume = mass/density

826/7.9=105 (To three significant figure)

8 0
3 years ago
Place these ions in order of preferential discharge, 1-4,where 1 is the most and 4 is least perfered.
egoroff_w [7]

Answer:

Silver ions 1 Hydrogen ions 2 Iron ions 3 Sodium ions 4

Explanation:

6 0
3 years ago
a sample of ammonia liberates 5.66 kj of heat as it solidifies at its melting point . what is the mass of the sample?
Reil [10]
The correct answer for the question that is being presented above is this one: "<span>16.728 g."</span>

Given that 
ΔHsolid = -5.66 kJ/mol.
This means that 5.66 kJ of heat is released when 1 mole of NH3 solidifies 

When 5.57 kJ of heat is released
amount of NH3 solidifies = 5.57/5.66 = 0.984 moles 

<span>molar mass of NH3 = 17 g/mole </span>
<span>1 mole of NH3 = 17 g </span>
So, 0.984 moles of NH3 = 17 X 0.984 = 16.728 g
7 0
3 years ago
Other questions:
  • A patient taking _______ would have a history of mental depression.
    10·1 answer
  • Although incineration can break down harmful chemicals, the byproduct is hazardous.
    15·2 answers
  • What are two ways volume of an object is measured?
    13·1 answer
  • What Most Often Causes The Availability Of Water To Change?
    12·1 answer
  • Why have people mostly studied the problem of plastic at the ocean<br> surface?<br> *
    10·1 answer
  • Which agent of erosion is probably at work in the area
    7·1 answer
  • Please follow me <br>i am follow back​
    10·2 answers
  • Which bond is the longest?
    12·1 answer
  • Whas the difference between an element, molecule and compound
    6·2 answers
  • Calculate the frequency of light having a wavelength of 425nm. remember that 1nm=1×10−9m
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!