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Goryan [66]
3 years ago
10

Within a group, does the radii of atoms increase or decrease as the atomic

Chemistry
1 answer:
EleoNora [17]3 years ago
8 0

Answer:increase

Explanation: the more electrons there are the bigger the electron field is and the bigger the atomic radii is

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What mass of carbon dioxide is produced upon the complete combustion of 17.0 LL of propane (the approximate contents of one 5-ga
BlackZzzverrR [31]

The mass of carbon dioxide that is produced will be 31,671 grams or 31.671 kg

<h3>Stoichiometric calculations</h3>

First, the equation of the reaction:

C_3H_8(g)+5O_2(g)-- > 3CO_2(g)+4H_2O(g)

The mole ratio of propane burned to carbon dioxide produced is 1:3.

The density of propane gas is 0.621 g/mL, thus, 17.0 L of propane will weigh:

        Density = mass/volume, mass = 0.621 g/mL x 17000 = 10,557 g

Mole of 10,557 g of propane = 10557/44.1 = 239.39 moles

Equivalent mole of carbon dioxide produced = 239.39 x 3 = 718.16 moles

Mass of 718.16 moles carbon dioxide = 718.16 x 44.1 = 31,671 grams or 31.671 kg

More on stoichiometric calculations can be found here: brainly.com/question/13384700

#SPJ1

6 0
2 years ago
Does data from mass spectrometry indicate that modern scientists have made modifications to Dalton's model?
Viktor [21]
http://apchemresources2014.weebly.com/uploads/9/7/6/4/9764824/mass_spectrometry.pdf
8 0
3 years ago
A compound containing phosphorus and oxygen has a molar mass of 219.9 g/mol and an empirical formula of p2o3. Determine its mole
Softa [21]

Answer:

P₄O₆

Explanation:

The molecular formula is a whole number multiple of the empirical formula. that is, if the mole wt is 219.9 gms/mole and the empirical formula weight is 110 gms/mole*, then the whole number multiple is 219.9/110 = 2 => Molecular formula => (P₂O₄)₂ => P₄O₆.

7 0
3 years ago
Which phrase is the best definition of matter?
Verdich [7]

The amount of physical material in an object

4 0
3 years ago
Read 2 more answers
the problem say what is the volume (in kL) of 3.7505 x 10^4 mg of iron? Iron has a density of 7.87 g/ml. Use correct significant
Elis [28]
So first find the volume

so 7.78g/ml and (3.7505 times 10^4) grams
therefor we dividde (3.7505 times 10^4) by 7.78 and get how many ml

the answer is 4820.69 ml

kL means kilo lieters
kilo=1000
kL=1000Liters
ml=milileters=1/1000 leiter
1000ml=1L
therfor
1kL=1000L
1000L=1000 times (1000ml)
1000L=1,000,000ml
1kL=1,000,000ml

so to convert to kL divide 4820.69 by 1,000,000
0.00482069
convert to scientifiic notation
4.8 times 10^-3

the answer is 4.8 times 10^-3 kL

4 0
3 years ago
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