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
VashaNatasha [74]
3 years ago
15

Answer this please, that would be very helpful.

Chemistry
2 answers:
kramer3 years ago
8 0

Hey, for #1, it's 1, 1, 1 because it's already balanced!

For #2, it's 1, 2, 1, 1 since the product side has 2 Cl's but left side only had 1.

baherus [9]3 years ago
5 0
The first one is balanced so you do not have to worry about the coefficients in front of the elements. on the second one, add a 2 in front of the HCl on the left side and you will be balanced. have a great day! :)
You might be interested in
How much 3.0 M NaOH is needed to neutralize 30. mL of 0.75 M H2SO4?
Nikitich [7]

Answer:

15.0 mL

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this answer can help you. Have a nice day!

3 0
3 years ago
Which statement is always true about a reversible chemical reaction?
Alecsey [184]
<h2>Answer:</h2>

Option (B):

The products can form reactants, and the reactants can form products.

<h3>Explanation:</h3><h3>Reversible reaction</h3>

A reversible reaction is a reaction where the reactants form products, which react together to give the reactants back.

aA + bB ⇄ cC + dD

A and B can react to form C and D or, in the reverse reaction, C and D can react to form A and B.

Other options are wrong because off:

(A) Concentration changes with time equilibrium concentration and higher product concentration is also possible.

(C) They may be constant.

(D) Concentration changes with time equilibrium concentration and higher reactant concentration is also possible.

7 0
3 years ago
Nuclear energy can come from
s344n2d4d5 [400]
D. all of these can produce nuclear energy
5 0
3 years ago
a) One kmol of N2O4 dissociates at 25℃, 1 atm to form an equilibrium ideal gas mixture of N2O4 and NO2 in which the amount of N2
horsena [70]

Answer:

neq N2O4 = 0.9795 mol.....P = 0.5 atm; T = 25°C

Explanation:

             ni      change    eq.

N2O4    1          1 - x       0.8154.....P = 1 atm; T = 25°C

NO2      0        0 + x          x

∴ x = neq = Peq.V / R.T.....ideal gas mix

if P = 0.5 atm, T = 25°C; assuming: V = 1 L

⇒ x = neq = ((0.5 atm)(1 L))/((0.082 atm.L/K.mol)(298 K))

⇒ x = neq = 0.0205 mol

⇒ neq N2O4 = 1 - x = 1 - 0.0205 = 0.9795 mol

3 0
3 years ago
Drag the tiles to the correct boxes to complete the pairs.
dezoksy [38]
What is the question?
7 0
2 years ago
Other questions:
  • Which option gives an object's volume in SF units?
    8·1 answer
  • Which of these phase changes does NOT involve changing a liquid into a gas?
    8·1 answer
  • The temperature of a sample of water increases from 30.0 degrees C to 40.0 degrees C as 6540 joules of heat are added. What is t
    9·2 answers
  • In the following reaction 8 grams of ethane are burned and 11 grams of CO2 are collected. What is the percent yield? 2C2H6+7O2=
    13·1 answer
  • A solution is prepared by dissolving 40.0 g of sucrose, in 250 g of water at 25°C. What is the vapor pressure of the solution if
    12·2 answers
  • How do yo know when your in love ?
    11·1 answer
  • Need help on this. Only if you know please.
    8·2 answers
  • How many moles are in 6.777 x 1023 atoms of CO2. Watch your significant figures. Question 2 options: 1 atoms CO2 1.125 moles CO2
    12·1 answer
  • What can air pollutants do?
    15·1 answer
  • Select the correct answer.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!