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
kvv77 [185]
3 years ago
13

How many grams of Chromium can be formed when 150 grams of

Chemistry
1 answer:
valentinak56 [21]3 years ago
6 0

Answer: 104 g

Explanation: reaction Cr2O3 + 3 H2 ⇒ 2 Cr + 3 H2O

M(Cr2O3) = 150 g/mol, so n = m/M = 1.0 mol

Number of moles of H2 should be 3.0 moles and

It is much greater (150 g / 2.016 g/mol)

1 mol Cr2O3 produces 2 mol Cr.

Mass m= 2.0 mol· 52g/mol= 104 g

You might be interested in
What is the smallest unit that makes up matter? A. molecules B. chemicals C. atoms D. alloys
Kamila [148]

Hello there!

An Atom would be considered to be the smallest unit that would make up matter. If were to ever see a picture of an atom, they would consists of a proton, neutron, electron, and a nucleus. And all this would be called a Atom.

Your answer: Atom

7 0
3 years ago
Read 2 more answers
How many of the planets have an orbital period of less than one Earth year?
GrogVix [38]

Since orbital period depends on how far you are from the sun, planets closer to the sun have a orbital period less than one earth year.

These planets are Mercury and Venus

8 0
3 years ago
How many moles of zinc, Zn, are in 1.31×1024 Zn atoms?
liubo4ka [24]

Answer:

=7.89013× 10^47 moles of zinc

Explanation:

1 atom contains 6.023×10^23 moles.

1.31×10^24 atoms of zinc contain6.023×10^24×1.31×10^.24

6 0
2 years ago
How does botulinum toxin block synaptic transmission?
mart [117]

It blocks ACh release so the muscle cannot contract

8 0
3 years ago
Explain how scientists know the oxygen level in the atmosphere has changed because of plants. Could our atmosphere still be chan
alukav5142 [94]

Answer:

Kya hova be Tera question koi nahi btaye ga

4 0
3 years ago
Other questions:
  • If an unshielded sample of radioactive material emits alpha particles, what effect will it have on a person sitting in the next
    9·2 answers
  • An organism with 2 different alleles is called?
    7·2 answers
  • Which methods could be used to dilute a solution of sodium chloride (NaCl)?
    6·1 answer
  • Why do scientists publish the results of their invesigation
    12·1 answer
  • N2(g) + 3H2(g) => 2NH3(g) Write the reaction again as a balanced reaction
    8·1 answer
  • How do I answer the question in bold? Thank you!
    15·1 answer
  • Join it and crack it do zooooooom​75386896860 password d6uNML
    15·1 answer
  • Which statement correctly pairs the climate factor with its effect on temperature? *
    11·1 answer
  • Which of the liquids you tested (isopropyl alcohol, water, and glycerol) displayed the greatest surface tension (greatest interm
    5·1 answer
  • I need help with my work
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!