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
snow_tiger [21]
3 years ago
9

How was the modern understanding of the atom developed?

Chemistry
1 answer:
Zepler [3.9K]3 years ago
8 0

Answer:

The modern understanding of an atom was developed by the quantum theory

You might be interested in
Naturally occurring gallium is a mixture of isotopes
katrin2010 [14]
It is b have a great rest of your day
7 0
3 years ago
What volume of a 0.550 M solution of potassium hydroxide (KOH) can be made with 19.9 g of potassium hydroxide?
Natalija [7]

Answer:

0.645 L

Explanation:

To find the volume, you need to (1) convert grams to moles (using the molar mass) and then (2) calculate the volume (using the molarity ratio). The final answer should have 3 sig figs to match the sig figs of the given values.

(Step 1)

Molar Mass (KOH): 39.098 g/mol + 15.998 g/mol + 1.008 g/mol

Molar Mass (KOH): 56.104 g/mol

19.9 grams KOH              1 mole
--------------------------  x  -----------------------  =  0.355 moles KOH
                                     56.014 grams

(Step 2)

Molarity = moles / volume                            <----- Molarity ratio

0.550 M = 0.355 moles / volume                 <----- Insert values

(0.550 M) x volume = 0.355 moles              <----- Multiply both sides by volume

volume = 0.645 L                                          <----- Divide both sides by 0.550

6 0
1 year ago
How many moles of oxygen are there in 3 moles of Zn(NO3)2? (2 points)
muminat

there are 6 moles of oxygen in Zn(No3)2

4 0
2 years ago
Which type of clouds are feathery,high in the sky,and are made mostly of ice crystals?
Temka [501]
The cloud with those characteristics is #1
5 0
3 years ago
Read 2 more answers
What are two different kinds of rock that are easily weathered by carbonic acid?
horsena [70]
Limestone and marble are the two rocks that are easily weathered by carbonic acid. Two kinds of weathering mostly affect the rocks. and they are physical weathering and chemical weathering. The above mentioned two rocks are highly affected by carbonic acid. The appeareance of these kind of rocks change their structure due to erosion very regularly. Caronation is the type of chemical weathering that affects the rocks limestone and marble. The carbonic acide is formed by the reaction of carbon dioxide in the air and water in the rivers. This carbonic acid results in weathering.
8 0
4 years ago
Other questions:
  • When vinegar and baking soda are combined bubbles begin to form. Bubbles are evidence of a chemical reaction because they
    6·1 answer
  • Select the correct answer.
    13·2 answers
  • Identify the acid, base, conjugate acid and conjugate base in the following reactions:
    12·1 answer
  • Solutions of mercury (I) nitrate and potassium bromide are mixed
    5·1 answer
  • Law of conservation of Mass states that all chemicals equations have to be balanced .
    11·1 answer
  • What is the percent composition by mass of sulfur in the compound MgSO4 (gram-formula mass =120. grams per mole)?(1) 20.% (2) 27
    12·1 answer
  • A majority of the world's electricity comes from water power.<br> True<br> False
    14·1 answer
  • ¿Qué establece la ley de la conservación de la materia? Explicar.
    5·1 answer
  • Compare the seasons on Titan to the seasons on Earth.
    6·1 answer
  • What is the overall charge on the compound, sodium hydroxide? explain
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!