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
Murljashka [212]
3 years ago
12

1. The Yerkes-Dodson Law says

Chemistry
1 answer:
goblinko [34]3 years ago
4 0

Answer:

The Yerkes-Dodson Law suggests that there is a relationship between performance and arousal. Increased arousal can help improve performance, but only up to a certain point.

Explanation:

You might be interested in
Which of the following is an essential condition for a redox reaction?
Alborosie
<h3><u>Answer;</u></h3>

C.The oxidation state of all the atoms should change.

<h3><u>Explanation;</u></h3>
  • A redox reaction which is oxidation-reduction reaction is a type of chemical reaction that involves a transfer of electrons between two species.
  • An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron.
  • In a redox reaction, the total number of electrons lost by the reducing agent must be equal to the number of electrons gained by the oxidizing agent.
3 0
3 years ago
What mass of magnesium would combine with exactly 16.0 grams of oxygen
TEA [102]
1.65g MgO = 1g Mg
1.65 - 1 = 0.65 g of O in MgO

solve it using proportion:
1g Mg / 0.65g O = x (g) Mg / 16g O
or 1 / 0.65 = x / 16

24.6 g is the answer.

if 1 gram of oxygen requires 1.65 grams of Mg
then 16 grams of oxygen will require 16 ( 1.65) or 26.4 grams.
3 0
3 years ago
The number of protons in an atom is known as its atomic
Fynjy0 [20]
Atomic number should be the answer
4 0
3 years ago
What color does red litmus paper turn in an acid base and neutral solution?
quester [9]
<span> red litmus paper turns </span>blue <span>under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F). Neutral litmus paper is purple.</span>
6 0
3 years ago
Read 2 more answers
Consider the following equilibrium: H2CO3+H2O = H3O+HCO3^-1. What is the correct equilibrium expression?
mylen [45]

Equilibrium expression is Keq = \frac{[H3O+][HCO3^-]}{[H2CO3]}\\

<u>Explanation:</u>

Equilibrium expression is denoted by Keq.

Keq is  the equilibrium constant that is defined as the ratio of concentration of products to the concentration of reactants each raised to the power its stoichiometric coefficients.

Example -

aA + bB = cC + dD

So, Keq = conc of product/ conc of reactant

Keq = \frac{[C]^c [D]^d}{[A]^a [B]^b}

So from the equation, H₂CO₃+H₂O = H₃O+HCO₃⁻¹

Keq = \frac{[H3O^+]^1 [HCO3^-]^1}{[H2CO3]^1 [H2O]^1}

The concentration of pure solid and liquid is considered as 1. Therefore, concentration of H2O is 1.

Thus,

Keq = \frac{[H3O+][HCO3^-]}{[H2CO3]}\\

Therefore, Equilibrium expression is Keq = \frac{[H3O+][HCO3^-]}{[H2CO3]}\\

4 0
3 years ago
Other questions:
  • Ethanol is added to gasoline because the oxygen it contains improves gasoline's burning efficiency. Its combustion reaction is g
    7·1 answer
  • What are the first five elementsof the periodic table?
    7·1 answer
  • ) How many hydrogen atoms are in an acyclic alkane with 16 carbon atoms?
    8·1 answer
  • Please answer asap for brainliest!!
    10·1 answer
  • Would it be easier or more difficult (compared to zinc) to recover silver from solution?
    10·1 answer
  • Flask is immersed in a large beaker of very hot water. At first, the level of the liquid in the tube falls, but after a short ti
    14·1 answer
  • Please help thankyou
    15·1 answer
  • If the force produced by the engine is 3400 N to the right and the force caused by friction is 400 N to the left, what is the NE
    7·2 answers
  • 20. When the hydrogen supply in the core begins to run out, and the star is no longer generating heat by nuclear fusion, the cor
    15·1 answer
  • A rod made up of a single element is used to heat water using electricity. To which group does this element probably belong to?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!