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Levart [38]
3 years ago
15

Please help me please i will mark you brainliest. In the nucleus of an atom, there are 17 protons and 18 neutrons. What is the a

tomic number? What is the atomic mass? How many electrons are there? Be sure to answer all 3 questions.
Chemistry
1 answer:
prohojiy [21]3 years ago
7 0

Answer:

i can only help with 2 :( atimic mass is: 35.453  and number of electrons is:17

Explanation:

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Aluminum metal reacts with dilute sulfuric acid to produce aluminum sulfate and hydrogen gas. what mass of aluminum will react w
SOVA2 [1]
Aluminium reacts with dilute sulfuric acid based on the following reaction:
<span>2Al + 3H2SO4 ..............> Al2 (SO4)3 + 3H2

From the periodic table:
mass of aluminium = 27 grams
mass of hydrogen = 1 gram
mass of oxygen = 16 grams
mass of sulfur = 32 grams

Therefore:
molar mass of aluminium = 27 grams
molar mass of sulfuric acid = 2(1) + 32 + 4(16) = 98 grams

From the balanced chemical equation:
2 moles of aluminium react with 3 moles of dilute sulfuric acid.
This means that 34 grams of Al react with 294 grams of the acid

To get the amount  of aluminium that reacts with </span><span>5.890 g of sulfuric acid, we will do cross multiplication as follows:
</span>amount of Al = (<span>5.890 x 34) / 294 = 0.6811 grams</span>
3 0
3 years ago
J.J. Thomson's plum pudding model of the atom followed the discovery of
Rama09 [41]
The answer is A i think from the options though the answers are worded a bit weird
3 0
3 years ago
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One canned juice drink is 15% orange juice; another is 5% orange juice. How many liters of each should be mixed together in orde
Maksim231197 [3]
It uses elimination againLet A be 15% juice and B is 5% juice
A+B = 100.15A + 0.05B = 0.11*10 = 1.1Multiply 2nd equation by 100 to get rid of decimals
A+B = 1015A + 5B = 110
7 0
3 years ago
When water decomposes into oxygen and hydrogen, the mass
Maurinko [17]
<span>When water decomposes into oxygen and hydrogen, the mass "Remains Constant" as according to Law of Conservation of mass, mass can neither be created not destroyed,.

In short, Your Answer would be Option A

Hope this helps!</span>
8 0
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Which one has the larger ionization energy ??
natita [175]

Answer:

Ne has the larger ionization energy

<h2>Please mark me as brainliest</h2>

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