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
kicyunya [14]
3 years ago
6

In J.J. Thomson's plum pudding model of the atom, the plums represent

Chemistry
1 answer:
Maksim231197 [3]3 years ago
8 0
The answer is A. The “plums” or the “raisins” of the pudding are the electrons. The actual “pudding” is the nucleus, which is made up of protons and neutrons, so it is a large positively charged mass.
Hope this helps!!! ^v^
You might be interested in
Copper crystallizes in a face-centered cubic lattice (the Cu atoms are at the lattice points and at the face centers). If the de
Delvig [45]

Answer:

The unit cell edge lenght in pm is equal to 361 pm

Explanation:

Data provided:

ρ=Copper density=8.96 g/cm3

Atomic mass of copper=63.54 g/mol

Atoms/cell=4 atoms (in theory)

Avogadro's number=6.02x10^{23} atoms/mol

Since copper has a cubic structure, its cell volume is equal to a^{3}, which can be obtained through the relationship:

cell volume=\frac{(atoms/cell)(atomic mass)}{(density)(Avogadros number)}

Substituting the values:

cell volume=\frac{(4 atoms)(63.54 g/mol)}{(8.96 g/cm3)(6.02x10^{23}) }=4.71x10^{-23}cm^{3}

clearing, we have:

a=\sqrt[3]{4.71x10^{-23}cm^{3}  }=3.61x10^{-8}cm

We convert from centimeter to picometer, 1cm=1x10^{10}pm

a=3.61x10^{-8}cmx\frac{1x10^{10}pm }{1cm} =361 pm

8 0
3 years ago
A 5.0-gram sample of Fe(s) is to be placed in 100. milliliters of HCl(aq). Which changes will result in the fastest rate of reac
sveta [45]
The answer is <span>increasing the surface area of Fe(s) and increasing the concentration of HCl(aq). 

the rate of reaction can be increased if the interaction between the reactants in better. by increasing the surface area of a solid, such as Fe, you make more possible each molecule of Fe to interact with HCl. Also, by increasing the concentration of HCl, it mean there is more molecule of HCl to interact with Fe.</span>
6 0
3 years ago
Construct a model to show the movement of matter and energy from plants into other organisms. Show how mass and energy are conse
ad-work [718]

Plants obtain energy from the sun during photosynthesis and pass it along the food chain.

<h3>What is a model?</h3>

A model is a representation of reality. We use models to understand what the real situation of things is like.

Let us recall that plants are the producers in the ecosystem. Energy flow from plants to animals. Plants obtain energy via the reaction 6CO2 + 6H2O --->C6H12O6 + ATP. This energy is passed along the food chain as organisms feed on each other.

Learn more about models: brainly.com/question/14281845

3 0
2 years ago
The diagram below shows two natural processes. Which of these statements is correct about Process 1 and Process 2?
dem82 [27]

Answer:

the answer is c

Explanation:

3 0
3 years ago
How many grams of nitrogen dioxide are required to produce 5.89x10^3 kg of hno3 in excess water
polet [3.4K]
<span>3 NO2 + H2O -------->. 2 HNO3. + NO
3(46g)------------------------> 2 ( 63g) HNO3
? kg-------------------------5.89 x10^3kg HNO3
Mass of NO2. = 5.89x10^3 x 138/ 2(63) = 6.45 x10^3 kg</span>
5 0
3 years ago
Other questions:
  • What is the most important thing you need to remember for physical change?
    11·1 answer
  • Ice is less dense than water because of which type of bond? metallic nonpolar covalent ionic hydrogen
    14·2 answers
  • Why is the solubility of a neutral organic compound unaltered by exposure to aqueous acid or base?
    15·1 answer
  • A → B is a first order reaction. Using the data below, what is the half-life in seconds? 0 sec, [A] = 1.22 M 3 sec, [A] = 0.86 M
    15·1 answer
  • What kind of solid often has the highest melting points?
    11·2 answers
  • The balance of atoms becomes ____ when electrons are removed or added
    5·1 answer
  • Chemical change example
    6·1 answer
  • Calculate the mass of 0.5dm3 of a 2g/dm3 solution of silver nitrate
    12·1 answer
  • Which of the following is not a reason to volunteer?
    8·2 answers
  • A gas under constant pressure has a volume of 30.57 m and a
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!