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
lina2011 [118]
3 years ago
13

Let me know the answer to this oneeee

Chemistry
1 answer:
defon3 years ago
8 0
<h2><em>Answer:</em></h2>

<em>1</em><em>.</em><em>2</em><em> </em><em>moles </em><em>of </em><em>hydrogen</em>

<em>please </em><em>see</em><em> the</em><em> attached</em><em> picture</em>

<em>hope </em><em>it</em><em> helps</em>

<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em>

You might be interested in
What are 2 mixtures and explain your answer
liq [111]
Water and orange juice
Or orange juice and sodium chloride
3 0
3 years ago
What is the Net Ionic equation for this chemical reaction: FeBr2+Na2S=FeS+2NaBr​
Artyom0805 [142]

Answer: Fe<em>(aq)</em>+S<em>(aq)</em>=FeS<em>(s)</em>

Explanation: The Sodium and Bromine are spectator ions because they don't react with anything, you can see this by writing the ionic equation like so:

1.) Molecular formula (given): FeBr2 (aq)+Na2S (aq)= FeS(s)+2NaBr(aq)

Each dissolved FeBr2 breaks up into one Fe with a charge of 2+ and two Br with a negative charge. This gives you:

Fe(aq)+ 2Br(aq)+Na2S(aq)=FeS(s)+2NaBr

2.) Now repeat what was shown with the other compounds in the given molecular formula, and pay attention to the states that each ion is in (solid, liquid, aqueous, gas) because this will give you the ionic equation, which from there you can get rid of any ions that don't change amount or state.

3.) Ionic formula: Fe(aq)+ <u>2Br(aq)</u>+<u>2 Na(aq)</u>+S (aq)=FeS(s)+<u>2 Na(aq)+2Br(aq)</u>

4.)When you've derived a total ionic equation (above), you'll  find that some ions appear on both sides of the equation in equal numbers. For example, in this case two Na cations and two Br anions appear on both sides of the total ionic equation. What does this mean? It means these ions don't participate in the chemical reaction. They're present before and after the reaction. Nothing happens to them. So those are removed and you're left with the net ionic: Fe(aq)+S(aq)=FeS(s)

Hope this helps :)

7 0
3 years ago
Josie observed that when water is boiled in an open beaker it completely disappears, leaving the beaker dry. What can Josie conc
-BARSIC- [3]
That when water is boiled in a open beaker and it disappears that it evaporates into the air
6 0
3 years ago
Fluorine-18 is a positron emitter used in pet scans. write a balanced nuclear equation for the reaction.
kow [346]
<span>Due to limitations on typography, I will have to describe the equation instead of actually writing it. Crude appearance. 18 18 0 F --> O + e 9 8 1 Detailed description. Each of the 3 components have both a left superscript and a left subscript which is a superscript and a subscript to the LEFT of the main figure unlike the usual right side that you see subscripts and superscripts. The equation will be F with an 18 left superscript and a 9 left subscript to represent Florine with atomic weight of 18 and 9 protons. Followed by a right arrow to indicate the direction the reaction is going. Followed by the letter O with a left superscript of 18 and a left subscript of 8 to represent Oxygen with atomic weight of 18 and 8 protons. Followed by a plus sign to indicate more. Followed by either the lower case letter "e" or the upper case Greek character beta with a left superscript of 0 and a left subscript of 1 or +1 to represent the positron being emitted with a positive charge and an atomic weight of 0.</span>
5 0
3 years ago
Read 2 more answers
Which two events are apart of the rock cycle
JulsSmile [24]

Answer:

The key processes of the rock cycle are crystallization, erosion and sedimentation, and metamorphism.

Explanation:

mark me brainliest!!

3 0
2 years ago
Read 2 more answers
Other questions:
  • Why were iron tools more difficult to obtain than copper ones?
    15·1 answer
  • A beaker holds xliters of 0.2M AlBr3. Give answers to parts a through din terms of x.a) How many moles of aluminum ions are ther
    12·1 answer
  • What is the atomic number of xenon, the fifith element in group 18?
    11·1 answer
  • Calculate the [ OH − ] and the pH of a solution with an [ H + ] = 0.090 M at 25 °C . [ OH − ] = M pH = Calculate the [ H + ] and
    15·1 answer
  • one part of dalton's atomic theory states: compounds are formed by combinations of atoms from two or more elements. is this stat
    14·1 answer
  • Al2O3; The ___ show the ___ of each atom in the ___
    14·1 answer
  • What kind of solid tends to have the lowest melting points?
    5·1 answer
  • WHAT HAPPENS WHEN ELECTRIC CURRENT PASSES THROUGH ACIDIFIED WATER.
    14·2 answers
  • Which molecule has five atoms per molecule?
    5·1 answer
  • Calculate the average atomic weight of Fe if abundance of isotopes 54Fe, 56Fe and 57Fe are 5%, 90%, 5% respectively. ​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!