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Rufina [12.5K]
3 years ago
15

How did the development of the earliest idea about atoms differ from the later work of scientists?

Chemistry
2 answers:
Tcecarenko [31]3 years ago
6 0

Answer:

c

Explanation:

AleksAgata [21]3 years ago
5 0
Thomson’s plum pudding model of the atom was later found to be inadequate following the discovery of the nucleus by Rutherford.
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PLZ HELP, Its The Nature of Oxidation and Reduction for chemistry
elixir [45]

Answer:

Oxidation is defined as the chemical process in which substance loses electron and hydrogen or gain oxygen while in the process of reduction, substance gains electron and hydrogen or loses oxygen.

So, from the given equation:

a. It is an oxidation reaction as Rb loses one elctron.

b. It is a reduction reaction as Te gains two electrons and become Te2-

c. It is a reduction reaction as H atom gains electrons.

d. It is an oxidation reaction as P loses 3 electrons.

8 0
3 years ago
Which flowers are prettier, daisies or roses?
zhenek [66]
Overall, it depends on your opinion. Some people think roses are prettier than daisies, and daisies are prettier than roses.

Roses are the definitive symbol for love and appreciation, while daisies are a symbol of Virgin Mary representing her chastity, grace, and purity. Daisies represent beauty and patience as well.
5 0
3 years ago
How many kilograms of a fertilizer are made of pure P2O5 would be required to supply 1.69 kilogram of phosphorus to the soil?
Alekssandra [29.7K]

Answer:

3.89 kg P2O5 must be used to supply 1.69 kg Phosphorus to the soil.

Explanation:

The molecular mass of P2O5 is

P2 = 2* 31 =           62

O5 = 5 *<u> 16 =         80</u>

Molecular Mass = 142

Set up a Proportion

142 grams P2O5 supplies 62 grams of phosphorus

x    kg P2O5        supplies 1.69 kg of phosphorus

Though this might be a bit anti intuitive, you don't have to convert the units for this question. The ratio is all that is important.

142/x = 62/1.69            Cross multiply

142 * 1.69 = 62x           combine the left

239.98 = 62x               Divide by 62

239.98/62 = x

3.89 kg of P2O5 must be used.

3 0
3 years ago
According to the video on nuclear power plants, what does PWR stand for?
Radda [10]

PWR stands for many things. Since you're talking about nuclear power reactors I think PWR stands for pressurized water reactor.

A pressurized water reactor follows many steps but the main goal is to obtain thermal energy from water.



Hope it helped,



BioTeacher101

6 0
3 years ago
6. The random motion of the particle in a substance is greatest when the<br>substance is​
fredd [130]

Answer:

when the substance is decrease

Explanation:

3 0
3 years ago
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