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ipn [44]
3 years ago
13

Recall all the models you described in task 1. Think about the results each model would predict for Thomson’s experiment. Which

atomic models does Thomson’s experimental evidence support? Explain why these models are compatible with the experimental results.
Chemistry
1 answer:
Bumek [7]3 years ago
4 0

Answer:

J.J. Thomson’s experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson proposed the plum pudding model of the atom, which had negatively-charged electrons embedded within a positively-charged “soup.”

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What kind (ionic or covalent) bond is FeCl2 + Na2CO3? (iron (II) chloride + sodium carbonate).
kipiarov [429]

Answer:

corbonate

Explanation:

i think so. not sure

6 0
3 years ago
Which example is an exothermic reaction?
ratelena [41]

Answer:

C. Condensation

Explanation:

When molecules release heat energy, it is called exothermic. In this case, condensation would be an example of this.

5 0
2 years ago
Read 2 more answers
1. A gas having the following composition is burnt under a boiler with 50% excess air.
jeka94

The composition of the stack gas are :

CH_4= 0.8713

C_3H_8 = 0.0202

CO = 0.107

<h3 /><h3>What is a mole fraction?</h3>

The ratio of the number of moles of one component of a solution or other mixture to the total number of moles representing all of the components.

Assuming 100 g of the stack gas. Calculate the mass of each species in this sample according to their percentages.

Mass of CH_4 : 70% of 100 g = 70 g

Mass of C_3H_8 : 15% of 100 g = 15 g

Mass of CO : 15% of 100 g = 15 g

Now calculate the number of moles of each species:

Number of moles of CH_4 : \frac{70 g}{16.04 g/mol} = 4.3 mole

Number of moles of C_3H_8: \frac{15 g}{144.1 g/mol} = 0.10 mole

Mass of CO : \frac{15 g}{28.01 g/mol} = 0.53 mole

Now to calculate the mole fraction of each we use the formula:

Mole fraction of CH_4: \frac{4.3}{4.935} = 0.8713

Mole fraction of C_3H_8 : \frac{0.10}{4.935} = 0.0202

Mole fraction of CO : \frac{0.53}{4.935} = 0.107

Hence, composition of the stack gas are:

CH_4 = 0.8713

C_3H_8 = 0.0202

CO = 0.107

Learn more about mole fraction here:

brainly.com/question/13135950

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8 0
2 years ago
76.0 mol of P4O10 contains how many moles of P?
NikAS [45]
For a mole of P4O10, there are 4 moles of P. Hence for 76 moles of P4O10, the number of P moles is a total of 304. 
8 0
3 years ago
Read 2 more answers
Aspartame (below) is an artificial sweetener used in diet soft drinks and is marketed under many trade names, including Equal an
damaskus [11]

Answer:

Find attached the structure of asparthic acid and phenylalanine

Explanation:

6 0
3 years ago
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