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
RoseWind [281]
3 years ago
14

Witch equations are correctly balanced.

Chemistry
1 answer:
IrinaK [193]3 years ago
8 0

Answer:

2nd and last.

Explanation:

In the first equation,the number of hydrogen atoms is not balanced and in the third,the number of aluminum atoms is not balanced.

You might be interested in
7. A gas has a volume of 300 mL at 300 mm Hg. What will its volume be if the pressure is changed to 500 mm Hg?​
USPshnik [31]

Answer:

The volume is

<h2>180 mL</h2>

Explanation:

In order to solve for the volume we use the formula for Boyle's law which is

<h3>P _{1}  V _{1} = P _{2}V _{2}</h3>

where

P1 is the initial pressure

V1 is the initial volume

P2 is the final pressure

V2 is the final volume

Since we are finding the final volume we are finding V2

Making V2 the subject we have

<h3>V _{2}  = \frac{P _{1}  V _{1}}{P _{2}  }</h3>

From the question

P1 = 300 mmHg

V1 = 300 mL

P2 = 500 mmHg

Substitute the values into the above formula and solve for the final volume obtained

That's

<h3>V _{2} =  \frac{300 \times 300}{500}  \\  =  \frac{90000}{500}  \\  =  \frac{900}{5}</h3>

We have the final answer as

<h3>180 mL</h3>

Hope this helps you

7 0
3 years ago
ANSWER ASAP ITS CHEMISTRY HIGH SCHOOL 10 POINTS!
loris [4]

Answer:

3rd option. 1–butanamine

Explanation:

To name the compound above, the following must be observed:

1. Locate the functional group in the chain. In this case the functional group is amine.

2. Locate the longest continuous carbon chain. This gives the parent name of the compound. In this case, the longest chain has 4 carbon i.e butane.

3. Since the functional group is amine, the parent name becomes butanamine i.e replacing the –e at the end in butane with –amine

4. Indicate the position of the functional group in the chain. In this case the functional group is at carbon 1

5. Name the compound by putting the above together.

The name of the compound is:

1–butanamine or butan–1–amine

5 0
3 years ago
Which cellular process produces simple sugars?
Nataly_w [17]

Answer:

The answer is C. Hope this helps you out!

7 0
3 years ago
Read 2 more answers
What is the value of all conversion factors that are used in dimensional analysis
IRISSAK [1]
All the conversions have a net value of 1
4 0
3 years ago
Read 2 more answers
What process transform solar energy into chemical energy?
DIA [1.3K]
Green plants transform solar energy<span> to </span>chemical energy<span> (mostly of oxygen) through the </span>process<span> known as photosynthesis, and electrical </span>energy<span> can be converted to </span>chemical energy<span> and vice versa through electrochemical reactions.</span>
8 0
3 years ago
Other questions:
  • When there are equal forces from opposite directions acting on an object, the forces are said to be which of the following?
    8·1 answer
  • For main-group elements using the older numbering system the group number on the periodic table corresponds to which characteris
    13·1 answer
  • Why is sodium chloride not a mixture?<br> Why is sodium chloride a compound?
    12·1 answer
  • Eliza mixes batter for a cake and puts it in the oven. What kind of change
    11·1 answer
  • The quantum mechanical model of the atom
    11·2 answers
  • Question 7 of 10
    11·1 answer
  • In any experiment the accuracy of the data and experiment can be improved. What are some things that can be done to improve data
    14·2 answers
  • What is the noble gas configuration of V+3
    10·1 answer
  • MATch THE BOXED PLEASEEEE
    5·2 answers
  • write and balance the equation showing the reaction between iron (iii) oxide and carbon monoxide to form iron (ii) oxide and car
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!