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
Setler [38]
3 years ago
11

A solution

Chemistry
1 answer:
timurjin [86]3 years ago
3 0
The answer to your question is  C.  A solution is a homogeneous mixture composed of two or more substances, so it couldn't have been A and D. Since a solution can't have its substances separated by a chemical means because they are chemically bonded, thus they are able to be separated by physical means 
You might be interested in
Anyone good at chemistry ? Maybe you can help me out?
olga55 [171]
I'm good at chemistry for some advice just message me here or roblox my username is rightchem7 .
4 0
3 years ago
The equation that represents
dlinn [17]
CH and O is the reactants while CO and H2O is the products
6 0
3 years ago
How many atoms are there in 32.45 grams of Magnesium?
levacccp [35]

Answer:

8.13 ×10²³ atoms

Explanation:

Given data:

Mass of magnesium = 32.45 g

Number of atoms = ?

Solution:

Number of moles of Mg:

Number of moles = mass/molar mass

Number of moles = 32.45 g/ 24 g/mol

Number of moles = 1.35 mol

Number of atoms:

1 mole contain 6.022×10²³ atoms

1.35 mol × 6.022×10²³ atoms/ 1mol

8.13 ×10²³ atoms

5 0
3 years ago
What answer giving brainliest tysm
monitta

Answer:

a

Explanation:

it is repeating

3 0
3 years ago
using the Bohr model for hydrogen: energy = hc/wavelength = 2.18 x 10^-18 Joules (1/nf2 - 1/ni2) N=15 to n=5
soldier1979 [14.2K]

Answer:

Energy lost is 7.63×10⁻²⁰J

Explanation:

Hello,

I think what the question is requesting is to calculate the energy difference when an excited electron drops from N = 15 to N = 5

E = hc/λ(1/n₂² - 1/n₁²)

n₁ = 15

n₂ = 5

hc/λ = 2.18×10⁻¹⁸J (according to the data)

E = 2.18×10⁻¹⁸ (1/n₂² - 1/n₁²)

E = 2.18×10⁻¹⁸ (1/15² - 1/5²)

E = 2.18×10⁻¹⁸ ×(-0.035)

E = -7.63×10⁻²⁰J

The energy lost is 7.63×10⁻²⁰J

Note : energy is lost / given off when the excited electron jumps from a higher energy level to a lower energy level

5 0
3 years ago
Other questions:
  • What are the parts of the water system? Label the water wheel to show the matter and forms energy that flow through the system.
    13·1 answer
  • Write the symbol for the element with 30 neutrons and a mass number of A = 56.
    8·1 answer
  • Question 21 (2 points)
    10·2 answers
  • Light waves that cross from an air medium to a water medium will
    14·1 answer
  • For each of these equations, determine the change in the number of moles of gas, δngas.?
    11·1 answer
  • What are similarities and differences between ionization energy and electron affinity
    15·1 answer
  • What mass of calcium chloride will be produced from 3.750 moles of hcl reacting with ca(oh)2
    5·1 answer
  • What is the final temperature when 625 grams of water at 75.0 C loses 7.96 x 10 to the fourth power J ? The specific heat of wat
    15·1 answer
  • Is it tru that electrons pair only after each sub shell is full?
    8·1 answer
  • Plz help it over science stuff
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!