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sdas [7]
3 years ago
8

Which one of the following statements explains why mass is lost when a student heats a sample of BaCl₂ • 2H₂O crystals?

Chemistry
1 answer:
inessss [21]3 years ago
7 0

Answer:

where are the statements??

Explanation:

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Describe an adaptation to a plant's life cycle and explain how this adaptation helps the plant survive. (2 points)
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Aquatic plants that live underwater have leaves with large air pockets inside that allow the plant to absorb oxygen from the water.

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Which particles make up the nucleus of an atom?
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Protons and neutrons
electrons just revolve around it
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When converting an acid salt dissolved in water to its acid form, you are instructed to adjust the ph well into the acidic range
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6 0
3 years ago
As a chlorine atom becomes a negative ion, the atom blanks an electron
Andrew [12]

Answer: increases by

As a chlorine atom becomes a negative ion, the atom "increases by" an electron

Explanation:

Chlorine atom has an atomic number of 17, and an electronic configuration of 1s2, 2s2 2p6, 3s2 3p5 showing 7 valence electrons in its outermost shell.

Hence, it receives a single electron to achieve a stable octet structure with electronic configuration of

1s2, 2s2 2p6, 3s2 3p6. Therefore, Cl- is a univalent negative ion with 8 valence electrons in its outermost shell. The increase is shown below

Cl + e- --> Cl-

Thus, as a chlorine atom becomes a negative ion, the atom "increases by" an electron

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3 years ago
An atom is described as a nucleus of protons and neutrons surrounded by a
Vlad1618 [11]

Answer:

Explanation:

The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged). Atoms have different properties based on the arrangement and number of their basic particles.

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