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nlexa [21]
3 years ago
9

What are bacteria? Chapter 7 lesson 2 AYU

Chemistry
2 answers:
Maru [420]3 years ago
7 0

Answer:

a group of unicellular microorganisms

Paha777 [63]3 years ago
4 0

Answer:

bacteria are a type of biological cell,they constitute a large domain of prokaryotic microorganisms,single celled. The cells are all prokaryotic . This means they do not have a nucleus or any other structures which are surrounded by membranes . ... Bacteria also have small, closed-circles of DNA called plasmids present in their cytoplasm

Explanation:

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Which skill involves creating representation of complex objects or processes
lesya692 [45]

Answer:

Making models

Explanation:

Classifying is the grouping together of items that are alike in some way. Answer: Making models involves creating rep- resentations of complex objects or processes.

6 0
3 years ago
As you move from left to right across the periodic table elements ?
Sidana [21]

Explanation:

Quite a number of properties varies across a period. Some remains constant whereas others decreases.

As one moves from left to right;

  • The energy level remains the same.
  • The ionization energy increases progressively as a result of increasing nuclear charge.
  • Electron affinity increases from left to right.
  • Electronegativity increases.
  • Electropositivity decreases.

learn more:

Periodic table brainly.com/question/2014634

#learnwithBrainly

6 0
3 years ago
What is the chemical formula for aluminum fluoride? A) Al3F B) AlF C) AlF3 D) AlFl3
Andrei [34K]

The chemical formula for aluminum flouride is C). AlF3.

7 0
3 years ago
Read 2 more answers
Compound X has the formula C8H14. X reacts with one molar equivalent of hydrogen in the presence of a palladium catalyst to form
REY [17]

Answer:

1-Ethyl-3-methylidenecyclopentane  

Step-by-step explanation:

Formula = C₈H₁₄. An alkane has formula C₈H₁₈. ∴ X contains 2 double bonds, 2 rings, or 1 ring and 1 double bond.

X absorbs only 1 mol of hydrogen. ∴ X contains 1 ring and 1 double bond.

Hydrogenation gives 1-ethyl-3-methylcyclopentane.

Ozonolysis gives formaldehyde, so X must contain a =CH₂ group.  

Hydrogenation of X converted the =CH₂ to -CH₃.

X is 1-ethyl-3-methylidenecyclopentane.

You can see the reactions in the image below.

3 0
3 years ago
Fluorine has an atomic number 9. It is in period 2 of the periodic table. The diagram shows the electron dot diagram of a fluori
jek_recluse [69]

Fluorine has C seven valence electrons.

Valence electrons are the electrons that are found on the outer shell of an atom that are capable of participating in chemical reactions. The easiest way to figure out how many valance electrons Fluorine has would be to look it up in a periodic table and notice that it a group 7 element and therefore has 7 valence electrons.

The other way to tell that Fluorine has 7 valence electrons is to notice that an element with an atomic number of 9 has 9 electrons. The electronic configuration of elements has the first 2 electrons go on the first shell or energy level 1s^2 , the leaving the next 7 to go to the second shell 2s^22p^5 which can take up to 8 electrons.

This means that Fluorine has 7 seven valence electrons.

6 0
3 years ago
Read 2 more answers
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