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
Anvisha [2.4K]
3 years ago
13

Idenatify the pair in which the formula does not match the name

Chemistry
1 answer:
MissTica3 years ago
3 0
What're the options?

You might be interested in
A model used for the yield Y of an agricultural crop as a function of the nitrogen level N in the soil (measured in appropriate
lisov135 [29]

Answer:

  • It is 3.

Explanation:

The model written correctly is:

  • Y=\frac{kN}{9+N^2}

This is a mathematical question, instead of a chemistry question, and you should use calculus to find the nitrogen level that gives the best yield, since this is an optimization problem.

The best yield is the maximum yield, and the maximum, provided that it exists, is found using the first derivative and making it equal to zero: Y' = 0

To find Y' you must use the quotient rule.

Y'=\frac{(kN)'(9+N^2)- (kN)(9+N^2)'}{(9+N^2)^2}\\ \\Y'=\frac{k(9+N^2)-kN(2N)}{(9+N^2)^2}\\ \\Y'=\frac{9k + kN^2 - 2kN^2}{(9 + N^2)^2}=\frac{9k-kN^2}{(9+N^2)^2}

Now make Y' = 0

  • The denominator is never equal to zero, because it is always positive and greater than 9.

  • Make the numerator equal to zero:

         9k - kN² = 0

  • Factor: k (9 - N²) = 0

  • Since k is a positve constant, it is not equal to zero, and the other factor, 9 - N², must be equal to zero:

         9 - N² = 0 ⇒ (3 - N) (3 + N) = 0

         ⇒ 3 - N = 0 or 3 + N = 0 ⇒ N = 3 or N = -3.

Since N is nitrogen level, it cannot be negative and the only valid answer is N = 3.

You can prove that it is a maximum (instead of a minimum) finding the second derivative or testing some points around 3 (e.g. 2.5 and 3.5).

8 0
2 years ago
What are Properties that can be recognized only when substances react or do not react
sergiy2304 [10]

Answer:

Chemical properties can be recognized only when substances react or do not react chemically with one another, that is, when they undergo a change in composition. A chemical property of one substance usually involves its ability to react or not react with another specific substance.

4 0
2 years ago
Can someone please help me with my science research I kind of need help in a few things that I listed, I’m currently working on
dalvyx [7]

Answer:

For your first question, Curium does not occur naturally on Earth, meaning that it is not produced naturally on Earth. However, it can be formed in nuclear reactors.

For your second question, Curium has been used to provide power to electrical equipment used on space missions, but doesn't seem to be that important overall.

Explanation:

Hope this helped!

7 0
2 years ago
The mass of a triton is:
KATRIN_1 [288]

Answer:Option (3) less than the sum of its components' masses

Explanation:

5 0
2 years ago
Substance P is carbon.
stepan [7]

Explanation:

substance Q could be <em><u>oxygen (O2)</u></em>

substance R could be <em><u>carbon</u></em><em><u> </u></em><em><u>d</u></em><em><u>i</u></em><em><u>o</u></em><em><u>x</u></em><em><u>i</u></em><em><u>d</u></em><em><u>e</u></em><em><u> </u></em><em><u>(</u></em><em><u>C</u></em><em><u>O</u></em><em><u>2</u></em><em><u>)</u></em>

4 0
3 years ago
Other questions:
  • What is not true about most combustion reactions?
    13·1 answer
  • What are 5 intensive physical properties of water?
    9·1 answer
  • At a certain temperature and pressure, 0.20 mol of carbon dioxide has a volume of 3.1 L. A 3.1-L sample of hydrogen at the same
    14·1 answer
  • In this experiment, a calibration curve, often called a Beer's Law plot, will be made. A calibration curve should have which of
    6·1 answer
  • What is the periodic table of element
    11·1 answer
  • How does the motion of particles in the sun’s plasma compare to the motion of particles in a solid?
    8·1 answer
  • What type of reaction occurs? S(s) + O2 (g) → SO2(g)
    7·2 answers
  • Teresa has taken three tests worth 100 points each. Her scores are 85, 93, and 88. She has one test left to take.
    9·1 answer
  • Why do elements in group 8A (the noble gases) tend not to gain or lose electrons?
    11·1 answer
  • BRAINLIEST TO FIRST RIGHT ANSWER
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!