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
Gelneren [198K]
2 years ago
13

Please help Show your work

Chemistry
1 answer:
Yuliya22 [10]2 years ago
6 0

Answer:

21

Explanation: 2+1=21

You might be interested in
Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)
ZanzabumX [31]

Answer:

limiting reactant

Explanation:

<em>The term that will be used to describe zinc in this case is </em><em>limiting reactant.</em>

A limiting reactant is a reactant that determines the amount of product formed in a chemical reaction. They are often stoichiometrically smaller of all the reactants in a reaction and once they are used up during, the reaction stops.

In this case, the zinc metal in the reaction is completely consumed, making the hydrochloric acid to be in excess. The zinc thus determines the amount of the products formed,

8 0
3 years ago
The rate constant for this first‑order reaction is
jenyasd209 [6]

Answer:

t = 5.7634 s

Explanation:

  • A → Pdts
  • - rA = K (CA)∧α = - δCA/δt

∴ T = 400°C

∴ α = 1 ....first-order

∴ CAo = 0.950 M

∴ CA = 0.300 M

⇒ t = ?

⇒ - δCA/δt = K*CA

⇒ - ∫δCA/CA = K*∫δt

⇒ Ln (CAo/CA) = K*t

⇒ t = Ln(CAo/CA) / K

⇒ t = (Ln(0.950/0.300)) / (0.200 s-1)

⇒ t = 1.1527 / 0.200 s-1

⇒ t = 5.7634 s

5 0
3 years ago
Your body is made up of trillions of cells that perform all the functions you need to survive. Which other kinds of organisms ar
Trava [24]
All organisms are composed of cells.
8 0
2 years ago
Mdfgfghhhhhhhhhhhhhhhhhhhh
kozerog [31]
Free answer? i think so
7 0
3 years ago
What is the percent of hydrogen by mass in CH4O
WITCHER [35]

Answer:

My guess would be  12.5828

4 0
3 years ago
Other questions:
  • Why is water not a good extraction solvent for trimyristin?
    5·1 answer
  • Question 8 of 10
    9·2 answers
  • What are the roles of producers,consumers, and decomposers in an ecosystem?
    13·2 answers
  • Calculate the number of moles of neon gas in 8.15 x 10^24 atoms of neon gas.
    6·1 answer
  • Can anyone please suggest me a good and easy project topic for physics and chemistry. For class nine or ten students.Please plea
    10·1 answer
  • Help pls!!!<br><br> Which extinction factors do you think cause the least extinctions? Why?
    7·1 answer
  • A compound formed with potassium and bromine that can detect blood in a stain by reacting with it to form distinctive crystals
    6·1 answer
  • What is a better indicator in the titration of HCl with Na2CO3, methyl orange or methyl red, and why​
    12·1 answer
  • A container has the dimensions of 10cm x 80mm x 0.15m. The density of
    12·1 answer
  • How to tell if a reaction is exothermic.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!