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
Margaret [11]
3 years ago
13

Which coefficients balance the following equation?

Chemistry
1 answer:
Nookie1986 [14]3 years ago
7 0
Answer: A
FeCl3 + 3 NaOH -> Fe(OH)3 + 3 NaCl
You might be interested in
Vanillin (used to flavor vanilla ice cream and other foods) is the substance whose aroma the human nose detects in the smallest
balu736 [363]

Answer:

Cost to supply enough vanillin is 3.2\$

Explanation:

Threshold limit of vanillin in air is 2.0\times 10^{-11}g per litre means there should be 2.0\times 10^{-11}g of vanillin in 1L of air to detect aroma of vanillin.

1ft^{3}=28.32L

So, 5.0\times 10^{7}ft^{3}=(5.0\times 10^{7}\times 28.32)L

So amount of vanillin should be present to detect = (2.0\times 10^{-11}\times 5.0\times 10^{7}\times 28.32)g

As cost of 50 g vanillin is 112\$ therefore cost of  (2.0\times 10^{-11}\times 5.0\times 10^{7}\times 28.32)gvanillin = (2.0\times 10^{-11}\times 5.0\times 10^{7}\times 28.32\times 112)\$ = 3.2\$

5 0
3 years ago
Draw the Lewis structure for methane (CH4) and ethane (C2H6) in the box below. Then predict which would have the higher boiling
Alinara [238K]

Answer:

Ethane would have a higher boiling point.

Explanation:

In this case, for the lewis structures, we have to keep in mind that all atoms must have <u>8 electrons</u> (except hydrogen). Additionally, each carbon would have <u>4 valence electrons</u>, with this in mind, for methane we have to put the hydrogens around the carbon, and with this structure, we will have 8 electrons for the carbon. In ethane, we will have a bond between the carbons, therefore we have to put three hydrogens around each carbon to obtain 8 electrons for each carbon.

Now, the main difference between methane and ethane is an <u>additional carbon</u>. In ethane, we have an additional carbon, therefore due to this additional carbon, we will have <u>more area of interaction</u> for ethane. If we have more area of interaction we have to give <u>more energy</u> to the molecule to convert from liquid to gas, so, the ethane will have a higher boiling point.

I hope it helps!

7 0
3 years ago
PLEASE HELP TEST density question EASY
AlexFokin [52]

it will float because it is not heavy enough

7 0
2 years ago
Read 2 more answers
Using the formula from previous question, if 108g of H,0 and 264g Co, are reacted
BARSIC [14]

Answer:

b

Explanation:

5 0
3 years ago
Describe what the greenhouse effect is and how it is caused on a molecular level.
Lina20 [59]

Answer:

The greenhouse affect is what traps the Sun’s heat or rays/ temperature in our atmosphere which causes our global warming

Explanation:

5 0
3 years ago
Other questions:
  • I NEED HELP FAST!!!!! Can you tell me about the location of electrons in atoms and how energy affects their location??? I have a
    15·1 answer
  • What are the advantages and disadvantages of using electrolysis?
    9·1 answer
  • What would be a simple way to block erosion
    11·1 answer
  • How do I solve this?? ok having a hard time BRAINLIST​
    10·1 answer
  • Who first arranged the elements according to nuclear charge?
    9·2 answers
  • need help is due tommorow about glacier.the question is this how might this affect the earth contients?
    6·1 answer
  • Motion is... Question 1 options: A change in speed over a certain amount of time. A change in position over a certain amount of
    10·1 answer
  • (chem) which is more concentrated: 45.0 grams of HCOOH dissolved in 189 mL of water or 1.5 moles of CH↓2COOH dissolved in twice
    11·1 answer
  • How many 250 mg tablets of metronidazole are needed to make 150 mL of suspension containing
    7·1 answer
  • How many grams of C8H18<br> is in 405,576.398 mL
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!