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jolli1 [7]
3 years ago
14

(hurry will give brainliest)What element that has 5 Valence Electrons and 4 energy levels?

Chemistry
1 answer:
abruzzese [7]3 years ago
8 0

Answer:

arsenic (As)

Explanation:

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An empirical research method in which data are gathered from observations of phenomena, hypothesis are formulated and tested, an
ahrayia [7]

Answer:

Scientific Method

Explanation:

Science is empirical in nature. The entire purpose of science is to discover new knowledge.

The empirical research method in science all begins with gathering observations from phenomena. After that, the researcher formulates appropriate hypothesis which are rigorously tested.

The conclusions drawn from testing the original hypothesis validate or modify the original hypothesis.

8 0
3 years ago
Which pair of elements has atoms with the same number of valence electrons ?
RoseWind [281]

Answer:silicon (Si) and geranium (Ge)

Explanation:

3 0
3 years ago
Which must be the same when comparing 1 mol of oxygen gas, O2, with 1 mol of carbon
babymother [125]
C the number of molecules
7 0
3 years ago
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A bottle of the pain reliever ibuprofen (C13H18O2, molar mass 206.3 g/mol) has 485 tablets. Each tablet contains 200. mg of ibup
Gwar [14]

(a) 485 x 200 mg = 97000 mg of ibuprofen in the bottle

97000 mg x (1g/1000mg) = 97g of ibuprofen in the bottle

97g (1 mol/ 206.5gC13H18O2) = 0.46973 moles of ibuprofen in the bottle

(b) 0.46973 mol C13H18O2 (6.022 x 10^23 molecules/1mol) = 2.8287 x 10^23 molecules of ibuprofen in the bottle

8 0
3 years ago
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Write a balanced equation for zinc sulfate heptahydrate + sodium carbonate —> zinc carbonate + sodium sulfate
tensa zangetsu [6.8K]

Answer:

I gotta go - but think heat or solubility, what can you drive away with heat and by what is it is not soluble...it is a catch all answer - but rarely is there ONE WAY ONLY! Good luck.

Explanation:

3 0
3 years ago
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