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
blsea [12.9K]
3 years ago
7

What is the purpose of the arrow in a chemical equation? A. It indicates the direction in which the reaction occurs. B. It separ

ates the elements from the compounds. C. It indicates the direction of increase in the number of molecules. D. It indicates the direction of heat movement in a reaction.

Chemistry
2 answers:
Andrej [43]3 years ago
7 0

A is most likely correct cause B and C make no sense, D is a maybe but A is right

solmaris [256]3 years ago
6 0

A is the answer to this question. Hope this helps!

You might be interested in
Help please due today
Usimov [2.4K]
The one abt respiration the answer is the first one and circulatory system is the last one that says “delivery molecules …”
3 0
2 years ago
Read 2 more answers
Neutral grain spirit is essentially the same as
Dennis_Churaev [7]

The neutral grain spirit is essentially known as rectified spirits or ethyl alcohol.

<h3>Meaning of neutral grain spirit</h3>

neutral grain spirit can be defined as raw material that is very concentrated with alcohol used to produce strong alcoholic products.

neutral grain spirit as the name implies is neutral in nature that is it can be blended with any other alcoholic product.

In conclusion, The neutral grain spirit is essentially known as rectified spirits or ethyl alcohol.

Learn more about ethyl alcohol: brainly.com/question/1049383

#SPJ11

5 0
2 years ago
A sample of a pure element has a mass of 45.6g and contains 4.19 x 10 23 atoms. Identify the element.
max2010maxim [7]
<h2>Answer:</h2>

    ZINC

<h2>Explanation:</h2>

<em>To identify the element based on the informartion given, we have to find the molar mass since this mass is unique to each element.</em>

            Molar mass = mass ÷ moles

<em>We already know the mass based on the question, as such we now need to find the # of moles.</em>

           Since 1 mole contains 6.02214 × 10²³ atoms

      then let  x moles contain 4.19 × 10²³ atoms <em>(given in the question)</em>

<em>     </em><em> </em>   ⇒   x =  (4.19 × 10²³ atoms  ×  1 mol) ÷ 6.02214 × 10²³ atoms

              x  =  0.69577 mol

<em>Now that we have the moles we can substitute it into the molar mass equation and solve for the molar mass.</em>

           ⇒ molar mass = 45.6 g ÷ 0.69577 mol

           ⇒ molar mass ≈  65.54 g/mol

                    This molar mass is closest to that of ZINC.

7 0
3 years ago
Concentration of 10.00 mL of HBr if it takes 5 mL of a 0.253 M LiOH solution to<br> neutralize it?
Sonbull [250]
In a titration, for an acid to neutralize a base, at the equivalence point, there should be an equal number of moles of H+ and OH-.

Moles of OH- can be found by multiplying the concentration of the base by the volume. (You will need to keep in mind the stoichimetric coefficients if the strong base is Ca(OH)₂, Ba(OH)₂, or Sr(OH)₂.

Moles of OH- = moles of H+
(0.253 M) * 0.005 L = 0.01000 L * c
c = 0.1265 M

The concentration of HBr is 0.127 M.
3 0
3 years ago
How many chiral centres are there in warfarin molecule?
kolbaska11 [484]
I'm actually not sure... but maybe this will help!
http://www.dummies.com/education/science/chemistry/how-to-identify-chiral-centers-in-a-molecule/


6 0
3 years ago
Read 2 more answers
Other questions:
  • In a sample of hydrogen sulfide (M = 34.1 g/mol) at a temperature of 3.00 × 102 K, estimate the ratio of the number of molecules
    12·2 answers
  • Predict the precipitate produced by mixing an Al(NO3)3 solution with a NaOH solution. Write the net ionic equation for the react
    6·1 answer
  • Which terms are used to identify pure substances
    8·2 answers
  • When magma reaches the surface gases what out of it
    7·1 answer
  • OCAS GAME
    11·1 answer
  • Ions that consist of a single atom are called ........... ions
    13·1 answer
  • after a chemistry student made a AgNO3(small 3 at bottom) solution., she wanted to determine the molar concentration of it. if 2
    8·1 answer
  • 2. A sample of gas has a pressure of 195 kPa and a volume of 3.50 L. If the pressure
    13·1 answer
  • Sterling silver is a mixture of the metals silver and copper.It is used to make jewellery.sometimes sterling silver causes green
    9·1 answer
  • How Could Spectroscopy Be Used to Distinguish Between the Following
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!