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Alenkasestr [34]
3 years ago
12

Which family does sodium belong to?

Chemistry
1 answer:
FrozenT [24]3 years ago
8 0

Answer:

sodium is a member of the alkali metal family

Explanation:

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To determine the age of fairly recent fossils and organic artifacts, it is possible to analyze the amounts of the isotopes 14C a
dolphi86 [110]

Answer: The net change in the atoms is the conversion of a neutron to a proton, turning Carbon (6 protons) into Nitrogen (7 protons).

Explanation:

Carbon-14, generated from the atmosphere, has 6 protons and 8 neutrons. That's where the 14 comes from, called the mass number, is the sum of protons and neutrons (6+8=14).

Carbon-14 is radioactive and decays by beta decay. That means one of its neutrons spontaneously turns into a proton, an electron, and a neutrino, according to:

^{14} C \rightarrow\ ^{14} N\ +\ e^-  +\ neutrino

After that, the atom has 7 protons and 7 neutrons, maintaining its mass number but changing its atomic number from 6 to 7, turning into Nitrogen.

3 0
3 years ago
natural rubber is white, but the one we see in cars is black, because it was combined with carbon. It is a physical or chemical
AleksAgata [21]

Answer: chemical property

Explanation: This is a chemical property because it was combined with carbon, another molecule acting like an element. The answer to the question is chemical property. Hope this helps!

4 0
3 years ago
What processes take place within all cells in order to maintain homeostasis?
NISA [10]

Answer:

Explanation: obtain and use energy, make new cells, exchange materials, eliminate wastes

6 0
3 years ago
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Two students are given the starting material benzoic acid and are asked to prepare benzaldehyde. The first student starts by ref
Likurg_2 [28]

Answer:

Compound A: Benzoyl chloride

Compound B: Benzaldehyde - (tBuO)₃Al complex

Compound C: Benzaldehyde

Compound D: Benzyl alcohol

Explanation:

The lithium tri-tert-butoxyaluminum hydride that the first student used is a milder reagent than LAH and will stop reacting at the aldehyde.

The LAH that the second student used is much more reactive and will continue to reduce the benzoic acid as far as possible, going all the way to the alcohol.

See the attachment for the reaction steps.

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3 years ago
What is the basis of modern periodic table?<br><br>​
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Explanation:

The periodic table is an arrangement of the chemical elements, organized on the basis of their atomic numbers, electron configurations and recurring chemical properties.

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