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ipn [44]
2 years ago
14

Burning something is always a chemical change that requires a fuel and

Chemistry
2 answers:
Misha Larkins [42]2 years ago
8 0
C . oxygen
i had this the other day
mrs_skeptik [129]2 years ago
7 0

Answer:

C

Explanation:

Oxygen is required in combustion because it's plays a reactive role in the process.

You might be interested in
How does fingerprinting work with remote sensing and dna barcodes
Ede4ka [16]

Fingerprint is the print of our finger, remote sensing are placed usually in locks in safety areas, it identifies the matching fingerprint and allows the people to enter, and in DNA barcode, location can be detected by remote sensing.

<h3>What is remote sensing?</h3>

Remote sensing is the identification of the sense of people, the data is feed to the device then according to the data it senses the presence and allow that people.

DNA barcoding is taking small fragment of DNA to find the progeny or its availability.

Thus, Remote sensing is typically used in locks in security areas to identify matching fingerprints and allow people to enter, and in DNA barcodes, location can be detected using remote sensing.

Learn more about remote sensing

brainly.com/question/10839378

#SPJ1

3 0
2 years ago
Sub-atomic particles like negatively charged electrons, positively charged
leonid [27]

Answer:

neutral

Explanation:

There are three basic subatomic particles. These are;

  1. Protons (positively charged)
  2. Electrons (negatively charged)
  3. Neutrons (neutral)

A neutron has no charge unlike the proton and the electron. It is present in the nucleus and contributes to the mass of the atom.

8 0
2 years ago
What is the most metallic character with low ionization energies
Nat2105 [25]

Answer:

Metals tend to lose electrons in chemical reactions, as indicated by their low ionization energies. Within a compound, metal atoms have relatively low attraction for electrons, as indicated by their low electronegativities.

4 0
2 years ago
The representative particle for KBr is the?​
Flauer [41]

Answer:

This is a chemical symbol for Potassium Bromide

6 0
3 years ago
Rank the members of each set of compounds in order of decreasing ionic character of their bonds. Use partial charges to indicate
Firdavs [7]

Answer:

Ionic character

A.  PF₃ > PBr₃ > PCl₃

B. BF₃ > CF₄ > NF₃

C. TeF₄ > BrF₃ > SeF₄

Explanation:

The most electronegative element is fluorine, followed chlorine, phosphorous nitrogen etc.

  • Atoms with high electronegativity tend to form negative ions.
  • Ionic compounds formed between elements with high electronegativity difference.
  • % ionic character is directly proportional to electronegativity difference.
  • According to Pauling Scale E.n for F(4.0), O(3.5), N(3.0), C(2.5), B(2.0), P(2.19), Se(2.55) , Te (2.1), Cl(3.16) and Br(2.96)
  • ΔE.N (Electronegativity difference) between( P and F = 4 - 2.19 = 1.81), (P and Br = 2.96 - 2.19 = 0.77) , (P and Cl = 3.16 - 2.96 = 0.2 )
  • ΔE.N (Electronegativity difference) between( N and F = 4 - 3 = 1), (B and F = 4 - 2 = 2) , (C and F = 4 - 2.5 = 1.5 )
  • ΔE.N (Electronegativity difference) between( Se and F = 4 - 2.55 = 1.45), (F and Te = 4 - 2.1 = 1.9) , (F and Br = 4 - 2.19 = 1.81 )

6 0
3 years ago
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