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
drek231 [11]
3 years ago
15

Question is in the image

Chemistry
2 answers:
Bond [772]3 years ago
8 0

Answer:

C) 3

Explanation:

Al +  H2SO4 → Al2(SO4)3 + H2

2Al + H2SO4  → Al2(SO4)3 + H2

2Al + 3H2SO4 → Al2(SO4)3 + H2

2Al + 3H2SO4 → Al2(SO4)3 + 3H2

zloy xaker [14]3 years ago
6 0

Answer:(3)

Explanation: 2Al+3H2SO4----->Al(2SO4)3+3H2

You might be interested in
I’m microsoft word you can access what from the mini toolbar
Aneli [31]
Word count and just reall simple stuff u can just get the real version on the computer
8 0
3 years ago
In a chemcial reaction, substances
Fofino [41]

Answer:

My guess is c

Explanation:

5 0
3 years ago
Reaction time is a stimulus reaponse ______ ? A ) instant B) complex. C) simple . D) automatic
lina2011 [118]
Reactions happen instantly even if some are slower than others they all happen instantly so the answer would be A.
5 0
3 years ago
Read 2 more answers
When using 100ml or 50ml graduated cylinder to what decimal place can your volume be estimated?<br>​
Olegator [25]

Answer:

I know that the 100-mL graduated cylinders are always read to 1 decimal place.

I think for 50 mL graduated cylinders, it lets you measure volumes up to 50.0 mL to the nearest 0.1 or 0.2 mL, depending on your exact cylinder.

3 0
3 years ago
What amount (moles) of compound is present in 1.00 g of each of the compounds in Exercise 54?
Anika [276]

Answer:

1. Caffeine, C₈H₁₀N₄O₂

Amount = 1.00/194 = 0.00515 moles

2. Ethanol, C₂H₅OH

Amount = 0.0217 moles

3. Dry Ice, CO₂

amount = 0.0227 moles

<em>Note: The question is incomplete. The compound are as follows:</em>

<em> 1. Caffeine, C₈H₁₀N₄O₂;</em>

<em>2. Ethanol, C₂H₅OH;</em>

<em>3. Dry Ice, CO₂</em>

Explanation:

Amount (moles) = mass in grams /molar mass in grams per mole

1. Caffeine, C₈H₁₀N₄O₂

molar mass of caffeine = 194 g/mol

Amount = 1.00 g/194 g/mol = 0.00515 moles

2. Ethanol, C₂H₅OH

molar mass of ethanol = 46 g/mol

Amount = 1.00 g/46 g/mol = 0.0217 moles

3. Dry Ice, CO₂

molar mass of dry ice = 44 g/mol

amount = 1.00 g/44 g/mol = 0.0227 moles

5 0
2 years ago
Other questions:
  • NaOH, KOH, and Ca(OH)2 are examples of (4 points)
    6·1 answer
  • What kind of solid is plastic
    6·1 answer
  • Cobalt III hydroxide and nitric acid react according to the following balanced equation:
    7·1 answer
  • An bond forms when one atom gives up one or more electrons to another atom
    10·1 answer
  • The specific heat capacity of copper is 0.09 cal/g°C. How much energy is needed to flow into a 10-gram sample to change its temp
    14·2 answers
  • Green plants use light from the Sun to drive photosynthesis, Photosynthesis is a chemical reaction in which water (H1,0) and car
    13·1 answer
  • Please Help!
    11·2 answers
  • Determine the number of particles in each of the following. Show the unit conversion method. A. 0.250 mol silver B. 8.56 x 10-3
    14·1 answer
  • Ag, CO,<br> Find out the stock system thank you
    8·1 answer
  • the pressure of a has is 1.0 atm and it occupies a volume of 2.50 L. What will he the new volume of this has if the pressure is
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!