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JulijaS [17]
3 years ago
9

Hypothesis of 6. You decide to clean your bedroom. You notice that your floor is covered with clothes.

Chemistry
1 answer:
ZanzabumX [31]3 years ago
6 0

Answer: So you could for example say, “IF I through my clothes into the closet. THEN the floor will be visible” I capatlized if and then because you need them in a hypothesis.

Explanation:

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A buffer consists of 0.45 M CH3COOH (acetic acid) and 0.35 M CH3COONa. The Ka of acetic acid is 1.8 x 10-5 . a) Calculate the pH
Zigmanuir [339]

Answer:

A) pH of Buffer solution = 4.59

B) pH after 5.0 ml of 2.0 M NaOH have been added to 400 ml of the original    buffer solution = 4.65

Explanation:

This  is the Henderson-Hasselbalch Equation:

 pH = pKa + log\frac{[conjugate base]}{[acid]}

to calculate the pH of the following Buffer solutions.

8 0
3 years ago
The energy pyramid below shows a possible
ExtremeBDS [4]

Energy transfer is not an efficient process.

Explanation:

There is less amount of energy in the top of the energy pyramid than at the bottom because energy transfer is not an efficient process. During the process of energy transferring, some amount is lost and some are converted to other forms of energy.

  • The sun is the ultimate source of energy for all life in the solar system.
  • When autotrophs takes this energy, they produce food from it.
  • They use light energy from the sun to produce chemical energy in food.
  • Even this conversion process waste precious amount of energy.
  • As one goes up the pyramid, more energy is lost during the process of converting from one form to another.

Learn more:

laws of thermodynamics brainly.com/question/11769517

#learnwithBrainly

7 0
3 years ago
Read 2 more answers
What is required for electrons to move from the stable energy level to an excited state?
Gekata [30.6K]

answer

When an electron temporarily occupies an energy state greater than its ground state, it is in an excited state. An electron can become excited if it is given extra energy, such as if it absorbs a photon, or packet of light, or collides with a nearby atom or particle

3 0
2 years ago
Hio people wyd today
worty [1.4K]

Answer:

yoooo wsg

Explanation:

answering questions yuh

4 0
3 years ago
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What is the rate constant for the reaction 2a+b→c? (the initial rate was measured at several different reactant concentrations)
ozzi
To find the rate constant we can write a rate expression for the following reaction:

2A + B → C

A rate expression is written as some rate constant multiplied by the concentrations of the reactants, with each concentration raised to the power of the molar coefficient. [A] has a coefficient of 2, and [B] has a coefficient of 1. Therefore, we get the following rate expression:

rate = k[A]²[B]

We are given a table of values and we can enter the three variable to solve for k.

k = (rate)/([A]²[B])
k = (0.035)/((0.05)²(0.05))
k = 280

We can confirm if the value for k is correct by using another set of concentrations, along with the rate constant and solve for the rate.

rate = 280 [0.10]²[0.05]
rate = 280 (0.01)(0.05)
rate = 0.14

The value we solved for agrees with the rate provided in the table, therefore we know our value for the rate constant is correct which is k = 280.
6 0
2 years ago
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