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
ehidna [41]
3 years ago
15

Identify the type of scientific knowledge represented by each statement. law theory hypothesis If a certain piece of metal is co

oled, it will conduct electricity better. arrowRight The amount of electric current that passes through a conductor is directly proportional to the voltage and is described by the formula V = IR. arrowRight Electricity is the flow of electric charge in the form of electrons moving through a circuit. arrowRight
Chemistry
2 answers:
Anton [14]3 years ago
8 0
“If a certain metal is cooked, it will conduct electricity better”

- this is a hypothesis, since the statement is kind of vague...”certain metal”...and is written in an “if-then” format.

The amount of electric current that passes through a conductor is directly proportional to the voltage and is described as V = IR

- laws are usually scientific understanding that we’ve tested so much that we’ve come to a conclusion that can often be written out as a mathematical relationship. Hence, the “V = IR”

Electricity is the flow of electric charge in the form of electrons moving through a circuit

- this is a theory. I would give an explanation but I’m out of time.

Hope this helps
Contact [7]3 years ago
7 0

If a certain piece of metal is cooled,  

it will conduct electricity better. its a Hypothesis

You might be interested in
Which of the following explanations accounts for the fact that the ion-solvent interaction is greater for Li than for K
OLEGan [10]

Li+ has a smaller ionic radius than K+

and smaller molecules have more collisions/interactions between each other

<h3>What is ion-solvent interaction ?</h3>

In the case of ion-solvent interactions, the state in which the interac-tions exist is an obvious one; it is the situation in which ions are inside the solvent.

  • Ions are charged particles, and charges interact with other charges. So there will also be ion-ion, as well as ion-solvent, interactions in the solution.

  • In the process of solvation, ions are surrounded by a concentric shell of solvent. Solvation is the process of reorganizing solvent and solute molecules into solvation complexes.

Learn more about Ion-solvent interaction here:

brainly.com/question/21307101

#SPJ4

6 0
1 year ago
An electron can be added to halogen atom to force a halide ion with
Lilit [14]

An electron can be added to halogen atom to force a halide ion with 8 valence electrons

<h3>What is an atom?</h3>

An atom can be defined as the smallest part of an element which can take part in a chemical reaction.

However whenever, an electron is added to halogen atom to force a halide ion with 8 different valence electrons

So therefore; an electron can be added to halogen atom to force a halide ion with 8 valence electrons

Learn more about halogens:

brainly.com/question/18276987

#SPJ1

4 0
2 years ago
The percentage of keys you type correctly is A. accuracy B. correctness C. exactness D. precision WHO EVER GETS THIS EARNS BRAIN
e-lub [12.9K]
The answer is A: accuracy
5 0
2 years ago
Which of the following is most likely to be found in a crystalline structure
aev [14]
The correct answer is letter D: Quartz.
5 0
3 years ago
When a lead acid car battery is recharged by the alternator, it acts essentially as an electrolytic cell in which solid lead(II)
lesya692 [45]

Answer: The mass of lead deposited on the cathode of the battery is 1.523 g.

Explanation:

Given: Current = 62.0 A

Time = 23.0 sec

Formula used to calculate charge is as follows.

Q = I \times t

where,

Q = charge

I = current

t = time

Substitute the values into above formula as follows.

Q = I \times t\\= 62.0 A \times 23.0 sec\\= 1426 C

It is known that 1 mole of a substance tends to deposit a charge of 96500 C. Therefore, number of moles obtained by 1426 C of charge is as follows.

Moles = \frac{1426 C}{96500 C/mol}\\= 0.0147 mol

The oxidation state of Pb in PbSO_{4} is 2. So, moles deposited by Pb is as follows.

Moles of Pb = \frac{0.0147}{2}\\= 0.00735 mol

It is known that molar mass of lead (Pb) is 207.2 g/mol. Now, mass of lead is calculated as follows.

No. of moles = \frac{mass}{molar mass}\\ 0.00735 = \frac{mass}{207.2 g/mol}\\mass = 1.523 g

Thus, we can conclude that the mass of lead deposited on the cathode of the battery is 1.523 g.

3 0
2 years ago
Other questions:
  • How hot, in degrees Celsius, would the air inside the balloon have to get in order for the balloon to lift off the ground? Assum
    5·1 answer
  • Describe the contributions made by Oparin, Haldane, Miller, and Urey toward understanding the origin of organic molecules.
    7·1 answer
  • What is the reaction energy Q of this reaction? Use c2=931.5MeV/u. Express your answer in millions of electron volts to three si
    7·1 answer
  • For which process is ΔS negative? Group of answer choices A. grinding a large crystal of KCl to powder B. raising the temperatur
    6·1 answer
  • What might be useful for adding solids to a tube
    11·1 answer
  • Acellus<br> How many grams of strontium<br> (Sr, 87.62 g/mol) are in 2.92<br> moles of strontium?
    9·1 answer
  • A concentration cell consists of two Sn/Sn2+ half-cells. The solution in one half-cell A is 0.13 M Sn(NO3)2 and is 0.87 M Sn(NO3
    7·1 answer
  • Draw the structures of all possible isomers for the following complexes. Indicate which isomers are enantiomer pairs. (a) Bromoc
    9·1 answer
  • 1. Your friend has a balloon that can hold a volume of 5 L. If she added a 3 mol of CO2 gas at a pressure of 0.90 atm, what is t
    13·1 answer
  • Explain why has a higher boiling point than NH3
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!