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
Debora [2.8K]
3 years ago
15

PLEASE HELP(2 questions)!!!!! BRAINLIEST IF FIRST AND CORRECTLY ANSWERED!!!

Chemistry
1 answer:
professor190 [17]3 years ago
8 0
D
B
those are the correct answers
You might be interested in
HELP!!!!!<br> i need help on this chemistry question
Alina [70]

Answer: electronic configuration

Explanation:

8 0
4 years ago
Classify the following as an element, compound, homogeneous mixture, or heterogeneous
Archy [21]
The answer is D. Heterogeneous mixture
3 0
4 years ago
3. How many atoms are found in 5.20 g of magnesium (Mg)?
Ganezh [65]

Explanation:

In order to go from mass of magnesium to atoms of magnesium, we have to do two things:

   Convert mass of Mg to moles of Mg using the molar mass of Mg as a conversion factor

   Convert moles of Mg to atoms of Mg using Avogadro's number (6.02×1023) as a conversion factor

Step 1:

Before we start, I should note that the molar mass of Mg is 24.31gmol. We can go from mass to moles using dimensional analysis. The key to dimensional analysis is understanding that the units that you don't need any more cancel out, leaving the units that are desired:

48.60g

×1mol24.31g

=2.00mol

Step 2:

We'll use this relationship:

www.sprinklernewz.uswww.sprinklernewz.us

Using the moles of Mg that we just obtained, we can use Avogrado's number to perform dimensional analysis in order to cancel out units of mol to end up with atoms of Mg:

2.00mol

×6.02×1023atoms1mol

=1.204×1024atoms

Thus, 48.60g of Mg is equivalent to 1.204×1024atoms

Hope this helped :)

6 0
3 years ago
While out on a hike, you find an unknown mineral. How would you test the mineral to find out what it is?
notsponge [240]
Are there answer choices or is it just right it your self?
6 0
4 years ago
How does adding a non-volatile solute to a pure solvent affect the boiling point of the pure solvent?
belka [17]
The correct answer is the second statement. The solvent will have a higher boiling point. Adding a non-volatile solute to a pure solvent will increase the boiling point of the solvent. This solution exhibit colligative properties. Colligative properties depend on the amount of solute dissolved in a solvent. These set of properties do not depend on the type of species present. 
7 0
3 years ago
Other questions:
  • What does the law of conservation of energy impy
    12·2 answers
  • Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions: ,
    6·1 answer
  • 5) How do you describe a person who likes<br>inventing stories?<br>Plz Help ;_; :v​
    9·1 answer
  • Under the same conditions of temperature and pressure a liquid differs from a gas because the particles of the liquid
    13·2 answers
  • Which of the following options best explains how less chlorophyll would affect the process of photosynthesis in plants?
    11·1 answer
  • Both of janies parents have dark hair. how likely is janie to have blonde hair? ​
    8·1 answer
  • Can someone help me out with why is the outer core of Earth is important in you’re own words?! A mini paragraph plsss
    14·1 answer
  • Which of these statements accurately describes monomers?
    9·2 answers
  • Which of the following are characteristics of ionic<br> compounds?
    12·1 answer
  • The chemical equation below shows the photosynthesis reaction. 6co2 6h2o right arrow. c6h12o6 6o2 the molar mass of carbon dioxi
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!