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andre [41]
3 years ago
14

Elements in the same group have similar properties because they have the same number of ?

Chemistry
2 answers:
Masja [62]3 years ago
8 0
Because their electronic configurations have the same number of electrons in the outermost shell. 
solmaris [256]3 years ago
8 0
Elements in the same group in the periodic table<span> have similar chemical properties. This is because their atoms have the same number of </span>electrons<span> in the highest occupied energy level. Group 1 elements are reactive metals called the alkali metals.</span>
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What is the mass in 0.25 mol of SO2
gulaghasi [49]

0.25 mols SO₂ x 64.058 g SO₂/ 1 mol SO₂ = 16.0145 g SO₂

molar mass of SO₂: 64.058 g

answer: 16 grams of SO₂ (2 sig figs)

check the question to see if its asked for a specific unit for mass (grams or kilograms, if they asked for kiligrams then convert 16 grams to kilograms by dividing it by 1000)


5 0
3 years ago
In this simulation what do you think the bread and cheese separately represent, the atom or the molecule?
Svetllana [295]

Answer:

the atom

Explanation:

The bread and cheese separately represent the atom because both bread and cheese are different from one another and we cannot assume it as a molecule because molecules formed when the group of atoms combine together by making bonds with each other and we know that bread and cheese did not make bonds with each other, they only attached, so we called them atoms not molecule.

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3 years ago
The negatively charged particles of an atom are the
posledela

Answer:

Electron: A negatively charged particle found circling or orbiting an atomic nucleus. An electron, like a proton is a charged particle, although opposite in sign, but unlike a proton, an electron has negligible atomic mass. Electrons contribute no atomic mass units to the total atomic weight of an atom.

Explanation:

3 0
3 years ago
What does Newton's first law of motion state ​
Alenkasestr [34]

Answer:

(☞ ಠ_ಠ)☞

Newton's. first law of motion states that "Everybody continues in its state of rest or uniform motion in a straight line unless it is acted by some external forces".

Explanation:

hope it helps

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8 0
3 years ago
What relationship does Avogadro's law describe?
LenaWriter [7]

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D. The relationship between volume and moles

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3 years ago
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