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
lara31 [8.8K]
2 years ago
7

Brianliest for whoever gets this right with step by step method

Chemistry
1 answer:
Sedaia [141]2 years ago
8 0
The Mr is the mass numbers of each element added up so…. Fe = 56, O=16, H=1 … now add these up with the number of each element -> there’s 1 Fe, and 3 Os and 3 Hs as they are in brackets with a 3 outside-> (56+16+16+16+1+1+1=107) … your answer is 107
You might be interested in
How many meters are in one yard? 1m=1.09​
GuDViN [60]

Answer:

0.9144, hoped I helped

4 0
2 years ago
Read 2 more answers
Taxonomic classification is a process of science that organizes living organisms by their structure, function, and relationships
DiKsa [7]

D) The broadest group of organization is known as the domain.

8 0
3 years ago
Branliest to correct answer
ivann1987 [24]
The answer is D) The boy uses force to move the rock a distance
8 0
3 years ago
The equilibrium constant k for the synthesis of ammonia is 6.8x105 at 298 k. what will k be for the reaction at 375 k?
spayn [35]
Answer is: K <span>be for the reaction at 375 K is 326.
</span>Chemical reaction: N₂(g) + 3H₂(g) ⇌ 2NH₃(g); ΔH = -92,22 kJ/mol.
T₁<span><span> = 298 K
</span>T</span>₂<span><span> = 375 K
</span><span>Δ<span>H = -92,22 kJ/mol = -92220 J/mol.
R = 8,314 J/K</span></span></span>·mol.<span>
K</span>₁ = 6,8·10⁵.<span>
K</span>₂ = ?The van’t Hoff equation: ln(K₂/K₁) = -ΔH/R(1/T₂ - 1/T₁).
ln(K₂/6,8·10⁵) = 92220 J/mol / 8,314 J/K·mol (1/375K - 1/298K).
ln(K₂/6,8·10⁵) = 11092,13 · (0,00266 - 0,00335).
ln(K₂/6,8·10⁵) = -7,64.
K₂/680000= 0,00048
K₂ = 326,4.
6 0
3 years ago
Read 2 more answers
What are the two categories of chemical sedimentary rock?
AnnyKZ [126]
Calcite and calcite?
4 0
3 years ago
Other questions:
  • Which scientist is credited with first stating that electrons orbit an atomic nucleus
    14·1 answer
  • This is basic chemistry btw.<br> screen shoted it
    14·1 answer
  • If the area of a square is 81 square meters, how many meters long is each side
    10·1 answer
  • Which statement is always true about a reversible chemical reaction?
    10·1 answer
  • PLZ HELP ME WITH MY WORK​
    5·1 answer
  • (reposted) thank you :)))
    12·1 answer
  • What are cilia?<br><br> smooth covering<br> hair like structures<br> a tail<br> all of the above
    14·1 answer
  • Having the same number of protons and electrons results in a positively charged atom.
    6·1 answer
  • 10. Composite volcanoes
    6·2 answers
  • Which process does NOT lead to a decrease in the salinity of water?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!