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
kogti [31]
3 years ago
15

20 points! Help ASP! Your answer must be explained!

Chemistry
2 answers:
Mariana [72]3 years ago
5 0
<span>b.mixtures are made up of more than one component</span>
aalyn [17]3 years ago
3 0

A mixture cannot be separated by physical means

You might be interested in
Write a balanced chemical equation for the following: magnesium metal is burned in oxygen to produce magnesium oxide.
KiRa [710]

Answer:

2Mg (s) + O_{2} (g) ---> 2MgO (s)

Explanation:

8 0
2 years ago
An unknown amount of mercury (II) oxide was decomposed in the lab. Mercury metal was formed and 5.20 L of oxygen was released at
Yakvenalex [24]

Answer:

  • <u>68.3g</u>

Explanation:

<u>1. Word equation:</u>

  • <em>mercury(II) oxide → mercury + oxygen </em>

<u>2. Balanced molecular equation:</u>

  • 2HgO → 2Hg + O₂(g)

<u>3. Mole ratio</u>

Write the ratio of the coefficients of the substances that are object of the problem:

       2molHgO/1molO_2

<u>4. Calculate the number of moles of O₂(g)</u>

Use the equation for ideal gases:

          pV=nRT\\\\\\n=\dfrac{pV}{RT}\\\\\\n=\dfrac{0.970atm\times5.20L}{0.08206atm.L/K.mol\times 390.0K}\\\\\\n=0.1576mol

<u>5. Calculate the number of moles of HgO</u>

         \dfrac{2molHgO}{1molO_2}\times 0.1576molO_2=0.315molHgO

<u>6. Convert to mass</u>

  • mass = # moles × molar mass

  • molar mass of HgO: 216.591g/mol

  • mass = 0.315mol × 216.591g/mol = 68.3g

7 0
3 years ago
Someone help 6th grade science i will give brainliest
patriot [66]
I believe the answer is C
3 0
2 years ago
Read 2 more answers
Which compound reacts with an acid to produce water and a salt
Hatshy [7]
I'm not exactly sure which one but I do know that an acid and a base react in a aqueous solution to form water, so i would probably eliminate the ones that aren't aqueous solutions.
3 0
3 years ago
Read 2 more answers
Complete the following precipitation reactions with balanced molecular, total ionic, and net ionic equations:
Dmitry [639]

Molecular equation

Hg₂(NO₃)₂ (aq) + KI(aq) ⇒Hg₂I₂(s) + 2KNO₃(aq)

Total Ionic equation

Hg²⁺(aq) + 2NO³⁻(aq) + 2K⁺aq) ⇒Hg₂I₂(s) + 2K⁺(aq) + NO³⁻ (aq)

Net Ionic equation

Hg²⁺(aq) + 2I⁻(aq)  ⇒ Hg₂I₂(s)

<h3>What is the molecular equation?</h3>

Sometimes, a balanced equation is all that is used to refer to a chemical equation. Any ionic substances or acids are represented using their chemical formulas as neutral compounds in a molecular equation. Each substance's state is described in parenthesis after the formula. A complete ionic equation also contains the spectator ions, whereas a net ionic equation just displays the chemical species that are involved in a reaction.

The steps listed below can be used to determine the net ionic equation for a specific reaction:

Include the states of each chemical in the balanced molecular equation for the reaction.

To know more about the molecular equation, visit:

brainly.com/question/14286552

#SPJ4

4 0
1 year ago
Other questions:
  • When doing a recrystallization what observations would prompt you to perform a hot filtration?
    6·2 answers
  • What did you observe in the reaction of phosphoric acid with the freshly cleaned zinc when compared with a piece just taken out
    5·1 answer
  • Identify the covalent compounds based on the names of the compounds. barium nitrate dinitrogen tetroxide boron trifluoride ammon
    10·2 answers
  • Balanced complete ionic and net ionic equations
    11·2 answers
  • 1. Al+3 has how many neutrons?<br><br>2. thorium-230 has how many protons, neutrons and electrons?
    13·1 answer
  • I’ve been trying to figure this out for a few hours
    5·1 answer
  • DHDHDHSHSHSHSVSVSBSHSHHAVAVABAVABAGAGAGAGAGAGABABABABBA
    8·2 answers
  • 1. Which phase change is accompanied by the release of heat? A) H20(s)--&gt; H2O(g) B) H20(l) -&gt;H2O(s) C) H20(l)→ H2O(g) D) H
    12·1 answer
  • _____of gas molecules with an object is the cause of<br> pressure by a gas.
    7·2 answers
  • The element that corresponds to the electron configuration 1s22s22p63s23p64s13d5 is
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!