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
ipn [44]
3 years ago
11

Which of these is the balanced equation for this reaction

Biology
2 answers:
VikaD [51]3 years ago
8 0

A is your answer.  it cant be B because H doesn't equal 2 on both sides.it cant be C because S doesn't equal 3 on both sides of the equation . It also cant be D because Au doesn't equal 3 on the first part of the equation so your best answer is A. Hope this helps!!!!

ch4aika [34]3 years ago
7 0

Explanation:

A balanced equation is defined as the equation where number of atoms of the reactant equal to the number of atoms of the product.  

This also means that mass of the reactants is equal to the mass of products in a chemical equation.

For example, Au_{2}S_{3} + 3H_{2} \rightarrow 2Au + 3H_{2}S

Here, number of atoms on reactant side are as follows.

  • Au = 2
  • S = 3
  • H = 6

Number of atoms on product side are as follows.

  • Au = 2
  • S = 3
  • H = 6

Hence, the number of atom of reactant side are equal to the number of atoms on product side.

Therefore, the reaction equation Au_{2}S_{3} + 3H_{2} \rightarrow 2Au + 3H_{2}S is a balanced equation.

You might be interested in
What is the difference between low pressure and high pressure areas and what weather can be found at each?
Leto [7]
Rain and thunderclouds are found with high pressure
3 0
3 years ago
What colors can a turtle see
amm1812
Near-Ultraviolet, Violet, blue, green, and yellow
8 0
4 years ago
How many new volumes would each new cell contain whenever a cell splits?
Elenna [48]
The specific volume will be different for various kinds of cells. The safe answer would be that the new cell will pretty much have the same volume as the one that it divided from. This is true for most eukaryotic cells unless other factors like epigenetics or mutations come into place.

One example of moments a cell would increase in volume is during hypertrophy. This simply means that the cell is increasing in size (compared to: hyperplasia -- which is an increase in number of the cells). Hypertrophy is definitely an increase in volume of the cell but this doesn't necessarily translate to cell division (i.e. just because the cell is big now, doesn't mean it will still be big when it divides).

Another moment of increasing volume of the cell and now also related to cell division would be during the two stages in the cell cycle (i.e., G1 and G2 phases). This is the growth phase of the cell preparing to divide. However when mitosis or division happens, the cells will normally end with the same volume as when it started.

This are safe generalizations referring to the human cells. It would help if a more specific kind of cell was given.
4 0
3 years ago
Read 2 more answers
Design an experiment where you would determine how quickly lactaid works to break down milk sugar at different temperatures
choli [55]
1. Gather 11 cups and then fill each cup with 5 ounces of whole milk, next is take the first cup to add a known quantity of lactaid. As a control, take another cup and do not add any lactaid. After 1minute, pour a known quantity of Benedicts into cups of milk. Record the color (blue is the least amount of glucose progressing to green, then yellow, orange, red, and brick red/brown). Take another cup of milk and then add the lactaid and wait 5minutes next is add the Benedicks. Record the color, repeat steps 7-10 adding 5minutes each time until there are no cups left (15 minutes, 20, 25,30,35,40,45).
For the last is Graph the data and form conclusions.
8 0
3 years ago
Fluoxitine is given to a client at a dosage of 500 mg every 6 hours. Assuming that the half-life of this drug is 3 hours, at wha
Ber [7]

Answer:

The correct answer would be - 9 hours.

Explanation:

The half life of a drug is the time that is required to decrease or reduced to one half of the its original achieved level or the highest amount previously taken. The half life of drug is also known as the time a drug take to complete its action.

At a dose of 500 mg the Fluoxitine drug would be 250 mg in 3 hour as it is given that half life of this drug is 3 hours, 125 mg in 6 hours, and in the end 62.5 mg in 9 hours.

Thus, the correct answer is : 9 hours.

6 0
3 years ago
Other questions:
  • Homeostasis is the regulation of an organism’s internal environment to maintain conditions suitable for life. Homeostasis requir
    5·1 answer
  • What will happen if there is no mitrochondria in a cell
    12·1 answer
  • Help please!! (3 points)
    14·1 answer
  • This picture shows the surface weather model at a particular location. Image shows a weather symbol with the following attribute
    6·2 answers
  • Identify the feature not unique to vertebrates.
    5·2 answers
  • There is a medical expert on television discussing the latest advances in implantable cardioverter-defibrillators. What is this
    11·2 answers
  • HELP PLEASE PLEASE !!!!!!
    9·1 answer
  • What would be observed when a growing seedling is placed horizontally​
    7·1 answer
  • Where does the light-dependent stage of photosynthesis occur in the plant cell?.
    7·2 answers
  • Evaluation of the pelvis in the rapid trauma assessment includes pressing on the symphysis pubis in which direction?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!