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
dedylja [7]
3 years ago
15

What describes a mixture

Chemistry
1 answer:
kirill [66]3 years ago
4 0

Answer:

a mixture is a material made up of two or more different substances which are physically combined.

You might be interested in
2. Sodium reacts with oxygen to form sodium oxide and has the following balanced chemical equation: 4 Na + O2 --> 2 Na2O. Whe
Anastaziya [24]
5 gig hi iifvjifhnkgcghgggggggg
4 0
3 years ago
Read 2 more answers
Matter is made up of heat energy and ___________energy?
ella [17]
You’re correct, matter is made up of heat energy and chemical energy

all matter contains heat because it is the result of the movement of atoms, molecules, or ions in solids, liquids, and gases.

all matter also contains chemical energy. chemical energy is stored in the bonds of chemical compounds so atoms and molecules are held together by chemical energy

hope this helps :)
3 0
2 years ago
How many moles of potassium chloride are in 28 grams of KCl?
stiv31 [10]

Answer:

0.3758moles

Explanation:

moles of kcl = mass of kcl/ molar mass of kcl = 28/74.5 = 0.3758moles

7 0
3 years ago
Read 2 more answers
Calculate the number of moles of iodine in 7.68×10^25 molecules of I2
Dmitrij [34]

Answer:

<h2>127.57 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{7.68 \times  {10}^{25} }{6.02 \times  {10}^{23} }   \\  = 127.574750...

We have the final answer as

<h3>127.57 moles</h3>

Hope this helps you

4 0
2 years ago
sodium ion and calcium ions produce nearly the same color in a flame test. Describe a way to differentiate between the two using
yulyashka [42]
To different sodium from calcium ions, we can add sodium and calcium ions separately to Na2CO3. On the sodium ion side, there will be no reaction while with Ca 2+ ions, the product resulting from the reaction will be CaCO3 via single replacement reaction. CaCO3 is a precipitate which makes the difference between the two ions.
6 0
3 years ago
Other questions:
  • A. Based on the activation energies and frequency factors, rank the following reactions from fastest to slowest reaction rate, a
    12·1 answer
  • Compounds with very high vapor pressures must have very minimal intermolecular forces true or false
    14·1 answer
  • What are the factors that affect the rate of dissolution
    11·1 answer
  • How many molecules of water are in 0.578 moles of water?
    13·1 answer
  • How many moles of KOH are there in 27.5 mL of 0.250 M KOH?
    15·1 answer
  • A process with a negative change in enthalpy and a negative change in entropy will generally be: _________________
    14·1 answer
  • ............... ............... ...............
    11·1 answer
  • Rotting food is an example of a chemical reaction. Many foods will not quickly less kept in a refrigerator. From this
    9·1 answer
  • Which group of elements has the most similar chemical properties? (1 point)
    15·1 answer
  • (b) Do compounds of hydrogen exhibit a relatively large or small kinetic isotope effect? Explain.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!