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
dlinn [17]
3 years ago
12

Classify each one of the following as pure substances or mixtures:

Chemistry
2 answers:
xxMikexx [17]3 years ago
7 0
Compounds=1,2,712
elements=2,3,8,11,13,17,20,24,26
heterogeneous mixtures=I think that none of them are heterogenous mixtures

homogeneous mixtures=all the remaining numbers
vova2212 [387]3 years ago
6 0
Please refer to the attachment for a complete classification of your specified matter.
Download docx
You might be interested in
Complete and balance the following acid-base reaction equation ______HNO3 + ______ Mg(OH)2 ------>
jekas [21]

Answer

_2 HNO₃ + 1 Mg(OH)₂ → 1 Mg(NO₃)₂ + 2 H₂O

Explanation

Given:

______HNO3 + Mg(OH)2 ------>

Solution:

Note that the reaction between an acid and a base will give salt and water only.

Hence the complete reaction of the given equation is:

___HNO₃ + Mg(OH)₂ → Mg(NO₃)₂ + H₂O

To get the balanced equation for the acid-base reaction, 2 moles of HNO₃ will react with 1 mole of Mg(OH)₂ to produced 1 mole of Mg(NO₃)₂ and 2 moles of H₂O.

Therefore, the complete and balanced equation for the given acid-base reaction is:

_2 HNO₃ + 1 Mg(OH)₂ → 1 Mg(NO₃)₂ + 2 H₂O

5 0
1 year ago
Which one is an expression of distance in Sl units?
Svetllana [295]

Answer:

500 meters

Explanation:

____________________

8 0
2 years ago
Read 2 more answers
Hydrazine (N 2 H 4 )) a rocket fuel reacts with oxygen to form nitrogen gas and water vapor . The reaction is represented with t
Drupady [299]

The mass of hydrazine (N₂H₄) required to produce 96 g of water (H₂O) is 85.4 g (Option C)

<h3>Balanced equation </h3>

N₂H₄ + O₂ —> N₂ + 2H₂O

Molar mass of N₂H₄ = (2×14) + (4×1) = 32 g/mol

Mass of N₂H₄ from the balanced equation = 1 × 32 = 32 g

Molar mass of H₂O = (2×1) + 16 = 18 g/mol

Mass of H₂O from the balanced equation = 2 × 18 = 36 g

SUMMARY

From the balanced equation above,

36 g of H₂O were produced by 32 g of N₂H₄

<h3>How to determine the mass of N₂H₄</h3>

From the balanced equation above,

36 g of H₂O were produced by 32 g of N₂H₄

Therefore,

96 g of H₂O will be produced by = (96 × 32) / 36 = 85.4 g of N₂H₄

Thus, 85.4 g of N₂H₄ is needed for the reaction

Learn more about stoichiometry:

brainly.com/question/14735801

8 0
2 years ago
PLZ HELP, GIVING BRAINLIEST!!
Veseljchak [2.6K]

Answer:

2.29 moles of Cr₂O₃ are produced

Explanation:

This is the reaction:

4 Cr + 3O₂ → 2Cr₂O₃

Ratio for this equation is 4:2, so 4 moles of chromium can produce the half of moles of chromium(III) oxide

4.58 mol of Cr may produce (4.58  .2)/4 = 2.29 moles of Cr₂O₃

4 0
3 years ago
I NEED HELP NOW!!!!!!!!!!!
Rashid [163]

A: the ball in frame A had the highest velocity, and the ball in frame B has the highest kinetic energy

3 0
2 years ago
Other questions:
  • Write the complete balanced equation for the following reaction:
    11·1 answer
  • Has anyone done a slime lab report?
    14·1 answer
  • In ____________, electrons are gained by atoms and lost by others
    13·2 answers
  • Which of these statements best describes the relationship difference between minerals and rocks
    15·2 answers
  • Which ion below is present in greatest concentration in a basic (alkaline) solution
    15·2 answers
  • Which type of rock is most likely to form because of high heat and pressure?
    13·2 answers
  • WILL GIVE BRANLIEST!! EASY BUT I WAS TO LAZY TO LEARN!! WILL FOREVER BE GREATFUL!!! WILL GIVE BRANLIEST!! EASY BUT I WAS TO LAZY
    5·1 answer
  • What is the volume in (a) liters and (b) cubic yards of a room that is 10. meters wide by 15 meters long and 8.0 ft high?
    13·1 answer
  • What is the cathode ray? How was the Nature of cathode rays determined?​​
    14·1 answer
  • 6. Which change to a population would cause
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!