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
Anna [14]
2 years ago
13

I really need help please someone help me?!. Those are all the questions.

Chemistry
2 answers:
natima [27]2 years ago
4 0

Answer:

question two is most likely you can describe the shape as a twisted ladder, thats what I learned in school.

Explanation:

YW

ch4aika [34]2 years ago
4 0
Sorry I couldn’t help
You might be interested in
What is likely to happen if we can't control our experiment properly? A. Our hypothesis will have to be changed. B. We will need
REY [17]
The answer to your question
is b 
4 0
3 years ago
Read 2 more answers
2.3 x 10²¹ particles H = __________ mol H (round to the nearest thousandth)
Natalka [10]

Taking into account the definition of avogadro's number, 3.82×10⁻³ moles of H are 2.3×10²¹ particles of H.

<h3>Avogadro's Number</h3>

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.

<h3>This case</h3>

Then you can apply the following rule of three: if 6.023×10²³ particles are contained in 1 mole of H, then 2.3×10²¹ particles are contained in how many moles of H?

amount of moles of H= (2.3×10²¹ particles × 1 mole)÷ 6.023×10²³ particles

<u><em>amount of moles of H= 3.82×10⁻³ moles</em></u>

Finally, 3.82×10⁻³ moles of H are 2.3×10²¹ particles of H.

Learn more about Avogadro's Number:

<u>brainly.com/question/11907018?referrer=searchResults </u>

<u>brainly.com/question/1445383?referrer=searchResults </u>

<u>brainly.com/question/1528951?referrer=searchResults</u>

7 0
2 years ago
Can someone pls help me
lesya [120]
Yes bro I gotchu now gimme da thanks and da answer is urs
8 0
3 years ago
Is primarily responsible for acid rain in the northeast United States Uranium-238 Answer A: Uranium-238 A Coal Answer B: Coal B
Georgia [21]

Based on the available facts, in the northeast United States, the biggest source of acid rain producing pollutants comes from the burning of coal by power plants to produce electricity.

<h3>What is acid rain?</h3>

Acid rain occurs when gases such as sulfur (iv) oxide and nitrogen oxides which are released from the burning of fossil fuels such as petrol and coal are released into the atmosphere, which then dissolve in rainwater and fall as acid rain.

These gases are known as acid anhydrides because they dissolve in water to produce acids.

In the northeast United States, the biggest source of acid rain producing pollutants comes from the burning of coal by power plants to produce electricity.

Learn more about acid rain at: brainly.com/question/718250

3 0
2 years ago
A 2 kg bowlling ball is 2.5 meters off the ground on a post when it falls just before it reachers the ground it is traveling m/s
Alchen [17]
The mechanical energy is conserved 
Choice A
6 0
3 years ago
Other questions:
  • Please help I’ll mark brainleist
    14·2 answers
  • Which of the following is an example of a model?
    13·2 answers
  • Ok so I have 3 beakers of clear liquid each holding a different substance, Water, Magnesium Sulphate and Sodium Carbonate how ca
    10·1 answer
  • Electrolysis can be used for all of the following, except A. separating metals from ores. B. plating objects with metal coatings
    9·1 answer
  • What type of energy travels in the form of electromagnetic waves?
    11·1 answer
  • Which of these statements explains the difference between nuclear binding energy and the strong nuclear force? Check all that ap
    8·2 answers
  • How do I find the chemical formula?
    8·1 answer
  • 1. Calculate the average reaction rate expressed in moles H2 consumed per liter per second.
    5·1 answer
  • Ocotillo plants are better adapted for surviving in the desert than maple trees because the characteristics of ocotillo leaves –
    8·1 answer
  • In the molecular orbital model of cyclobutadiene, how many -antibonding molecular orbitals are there?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!