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
ser-zykov [4K]
3 years ago
10

How did Rutherford’s discovery help explain why there was no beam of positively charged particles going from the positive to the

negative plate?
Chemistry
1 answer:
Marina CMI [18]3 years ago
5 0
Rutherford's experiment showed that atoms consisted of a dense mass which was surrounded by mostly empty space - the nucleus! ... The conclusion that could be formed from this result was that atoms had an inner core which contained most of the mass of an atom and was positively charged
You might be interested in
How many atoms are in 9.3moles of lithium?
vladimir1956 [14]

Answer:

3.45 moles Li  contains  2.08 × 10 (to the power of)24  atoms .

Explanation:

The relationship between atoms and moles is:

1  mole atoms =

6.022 × 10 (to the power of)23

atoms

In order to determine how many atoms occupy a given number of moles, multiply the given moles by  

6.022 × 10 (to the power of)23

atoms/mole

.

In the case of 3.45 moles lithium (Li):

3.45 mol Li × 6.022 × 10 (to the power of)23  atoms Li/ 1 mol Li =

2.08 × 10 (to the power of)24

atoms Li  rounded to three

3 0
3 years ago
Read 2 more answers
Calculate the number of joules released when 72.5 grams of water at 95.0 degrees Celsius cools to a final temperature of 28.0 de
Airida [17]
Water's specific heat capacity is 4200 J/Kg°C
95-28=67
72.5grams in kg is 0.0725kg
Energy = 67×0.0725×4200
Energy = 20,401.5 J or 20.4015 kJ
7 0
3 years ago
I know that the answer is C. 8, but can you explain step by step how to get that answer?
Leya [2.2K]

Answer:

8

Explanation:

Oxidation:

Fe^{2+} -->Fe^{3+}+e^{-}

Reduction:

Cr_{2}O_{7}^{2-}+6e^{-} -->2Cr^{3+}

We have to equalise the number  of moles of electrons gained and lost in a redox reaction in order to get a balanced reaction.

Hence we have to multiply the oxidation reaction throughout by 6.

and adding the two half-reactions we obtain:

6Fe^{2+}+Cr_{2}O_{7}^{2-} -->6Fe^{3+}+2Cr^{3+}

Still the total charge and number of oxygen is not balanced.

Since the reaction takes place in acidic conditions, we will add required number of H+ to the appropriate side to balance the charge and add half the amount of H2O to balance the hydrogen atoms.

We add 14 H+ on LHS and 7H2O on RHS to obtain:

6Fe^{2+}+Cr_{2}O_{7}^{2-}+14H^{+} -->6Fe^{3+}+2Cr^{3+}+7H_{2}O

Sum of coefficients of product cations = 6+2 = 8

4 0
3 years ago
Where does the classification of species fall?
ivolga24 [154]

Explanation:

develop a short message which you will deliver to the people in this community about application of chemistry in everyday life

5 0
2 years ago
Does anyone know the answer to this​
Damm [24]
It’s Tetracarbon dioxide :)
6 0
3 years ago
Other questions:
  • What is the answer slam sms
    7·2 answers
  • 20 pts. I am making holiday cookies and the recipe says that it will make 48 cookies. After eating some raw cookie dough I bake
    10·1 answer
  • When metallic sodium is dissolved in liquid sodium chloride, electrons are released into the liquid. These dissolved electrons a
    6·1 answer
  • How many total electrons are shared between two nitrogen atoms when they bond to form a diatomic nitrogen molecule?
    7·1 answer
  • What happens when you put sugar into vinegar
    15·1 answer
  • Ethylene glycol has a density of 1.11g/cm^3 what is the mass in grams of 417 mL of this liquid
    13·1 answer
  • Reactions which give out energy are endothermic
    6·1 answer
  • Which atom attains a stable valence electron configuration by bonding with another atom?
    13·1 answer
  • What is the synthetic element in period 5
    5·1 answer
  • When an atom loses and electron. The excess charge comes from protons
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!