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
Paha777 [63]
3 years ago
12

HURRY PLEASE HELP

Chemistry
1 answer:
Dahasolnce [82]3 years ago
7 0

Answer:

A

Explanation:

its A

facts o.o

You might be interested in
Zinc metal is added to a flask containing aqueous hydrochloric acid. The flask contains 0.400 mole of HCl. How much hydrogen gas
dusya [7]

Answer:

0.4 g of hydrogen gas would be produced.

1. 0.48 mole of HCl is needed to react completely with 15.5 g of zinc.

2. HCl is the limiting reactant.

3. 2.61 g of zinc is in excess

Explanation:

From the balanced equation of reaction:

Zn(s)+ 2HCl(aq) --> H_2(g) + ZnCl_2(aq)

1 mole of Zn requires 2 moles of HCl to produce 1 mole of hydrogen gas.

15.5 g of zinc = 15.5/65.3 = 0.24 moles of zinc.

0.24 moles Zn is supposed to require 0.24 x 2 moles HCl which is equivalent to 0.48 moles HCl.

But only 0.400 mole of HCl is present. <u>Hence, HCl is the limiting reagent</u>. <u>For complete reaction with 15.5 g of Zinc, 0.48 mole HCl would be needed.</u>

0.400 mole of HCl will require 0.2 mole of Zn for complete reaction. <u>This thus means that 0.24 - 02 = 0.04 mole of Zn is in excess.</u>

0.04 mole Zn = 0.04 x 65.3 = 2.61 g excess Zn.

Now, since HCl is the limiting reagent;

2 moles of HCl is required to produce 1 mole of H2 according to the equation.

0.400 mole HCl will therefore yield 0.400 x 1/2 = 0.2 mole H2

0.2 mole H2 = 2 x 0.2 = 0.4 g H2

<em>Hence, </em><em>0.4 g</em><em> of hydrogen gas would be produced.</em>

6 0
3 years ago
Is CH3COOCH3 an acid or base?
Romashka-Z-Leto [24]

Answer:

acid

Explanation:

Methyl acetate, also known as MeOAc, acetic acid methyl ester or methyl ethanoate, is a carboxylate ester with the formula CH3COOCH3. It is a flammable liquid with a characteristically pleasant smell reminiscent of some glues and nail polish removers.

4 0
2 years ago
Read 2 more answers
(GIVING BRAINLIEST)Match the type of chemical bond with the best description:
Kipish [7]

Answer:

A and 3

B and 2

C and 1

Explanation:

<em>Ion</em>ic bonding is the transfer of electrons from a cat<em>ion</em> to an an<em>ion</em>.

Covalent bonding is the sharing of electrons between nonmetal atoms.

<em>Metallic</em> bonding is the sea of electrons <em>metal </em>cations.

Hope this helped!

8 0
3 years ago
Which element is a liquid at 1000 k <br><br> 1.Ag<br> 2.Al<br> 3.Ca<br> 4.Ni
AlexFokin [52]

in these options not any Element are liquid at 1000k i think you type wrong in first option It is Hg not Ag and Hg is liquid at 1000 k

7 0
3 years ago
Read 2 more answers
Which of these figures probably shows a sugar solution containing a small amount of sugar dissolved in water
Vesnalui [34]

Answer:

The correct answer is Sugar has a greater solubility than sand.

Sugar will easily dissolve in water because it has a lower density than sand, therefore it has a greater solubility.

8 0
3 years ago
Read 2 more answers
Other questions:
  • What kind of Romance Novels would kids between the age of 14-18 read. Whether it is an actual book or a book made on sites like
    15·1 answer
  • Give examples of how to different metamorphic rocks are used
    14·2 answers
  • Electrons are charged particles. Moving charged particles are a current. There is a current of electrons flowing through a coppe
    10·2 answers
  • Suppose you plant a seed and observe that a tree of large mass grows from it. The tree achieves a final mass that changes very l
    5·2 answers
  • Acid hydrolase, a digestive enzyme, would most likely be found in which organelle?
    12·2 answers
  • Scientists can tell the average temperature of the earth by studying an ice core.<br> true or false
    11·2 answers
  • What is it called when pollen fertilizes the egg​
    13·2 answers
  • If a material conducts heat easily, its a good _____. <br> It has to be a 18 letter word
    8·1 answer
  • weeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
    12·2 answers
  • NaOH + HCl -&gt;<br> Fe + HCl -&gt;
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!