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Tems11 [23]
3 years ago
9

Scientific evidence is most likely to be consistent if it is based on data from

Chemistry
2 answers:
ladessa [460]3 years ago
6 0

Answer:

Random samples

Explanation:

It needs to be random so that there isn't bias that would skew the consistency

tamaranim1 [39]3 years ago
5 0

Answer:

A

Explanation:

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Fill in the blanks.
ANTONII [103]

Answer:GASEOUS, LOWERING ,EMITTED AS HEAT, DOWN,DO NOT RELEASE,DECREASES,NEGATIVE.

Explanation: Filling the blanks gives

Lattice energy is associated with forming a crystalline lattice of alternating cations and anions from the _GASEOUS___________ ions.

Because the cations are positively charged and the anions are negatively charged, there is a LOWERING of potential- as described by Coulomb's law-when the ions come together to form a lattice energy.That energy is EMITTED AS HEAT when the lattice forms.

As the ionic radii increases as you move DOWN a group, ions cannot get as close to each other and therefore DO NOT RELEASE as much energy when the lattice forms. Thus the lattice energy DECREASES (becomes less) NEGATIVE  as the radius increases.

The above gives the  definition of Lattice  Energy and how it relates to atomic and ion charge.

6 0
2 years ago
Compare the following sodium atoms in terms of their neutrons and mass numbers 24Na, 23Na​
olga_2 [115]

Na-24 and Na-23 have the same number of atoms=11, different neutrons(13 and 12),different mass number(24 and 23)

<h3>Further explanation </h3>

The elements in nature have several types of isotopes

Isotopes have the same number of protons and having a different number of neutrons.

So Isotopes are elements that have the same Atomic Number (Proton)

  • ₁₁²³Na

number of atoms = 11

mass number = 23

number of neutrons=23-11=12

  • ₁₁²⁴Na

number of atoms = 11

mass number = 24

number of neutrons=24-11=13

7 0
3 years ago
Why is potassium permanganate, without any d electrons, bright purple in color?
velikii [3]
Cos purple is the end product of potassium
7 0
3 years ago
Compare the 13C spectra of starting material and product and explain which peaks can be used to unambiguously determine whether
fgiga [73]

Answer:

The description of the given question is summarized in the explanation section below.

Explanation:

A maximum of around 82 ppm would be found throughout the beginning material spectrum around CDCl3. This same resulting spectrum maximum of 82 ppm has been lost, as well as the section has a historic high of 215 ppm.

  • The OH summit at 82 ppm was obvious as well as a significant maximum of around 215 ppm carboxylic acid was observed.
  • That justifies the occurrence of oxidizing, C13 NMR was indeed verified as a reactive organic compound oxidized in carbonyl Ozone.
5 0
2 years ago
Which of the following terms best describes the nucleus of a radioactive element?
Jet001 [13]
Which of the following terms best describes the nucleus of a radioactive element? 
C. Unstable
6 0
3 years ago
Read 2 more answers
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