1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dem82 [27]
3 years ago
12

7. Define electronegativity

Chemistry
1 answer:
neonofarm [45]3 years ago
5 0
Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.
You might be interested in
Which is a property of barium (Ba)?
pogonyaev

Answer:

a it rarely reach with other elements

6 0
3 years ago
Which of the following best explains the trend in ionization energy across a period?
Alina [70]

A) It decreases because the distance between the nucleus and outermost shell increases

4 0
3 years ago
Read 2 more answers
Correct name for #10 please
ira [324]

Answer:

CH₃CH(CH₃)CH(C₃H₇)CH₂CH(CH₃)₂:

4-isopropyl-2-methylpentane.

Explanation:

Step One: Draw the structure formula of this compound. Parentheses in the formula indicate substitute groups that are connected to the carbon atom to the left.

For example, the first (CH₃) indicates that the second carbon atom from the left is connected to:

  • the CH₃- on the left-hand side,
  • the -CH(C₃H₇)CH₂CH(CH₃)₂ on the right-hand side,
  • a hydrogen atom, and
  • an additional CH₃- group that replaced one hydrogen atom.

Each carbon atom in this compound is connected to four other atoms. All bonds between carbon atoms are single bonds.

The C₃H₇ in the second pair of parentheses is the condensed form of CH₃CH₂CH₂-. See the first sketch attached. Groups in parentheses are highlighted.

Step Two: Find the carbon backbone. The backbone of a hydrocarbon is the longest chain of carbon atoms that runs through the compound. See the second sketch attached. The backbone of this compound consists of seven carbon atoms and is highlighted in green. The name for this backbone shall be heptane.

Step Three: Identify and name the substitute groups.

The two substitute groups are circled in blue in the second sketch.

  • The one on the right -CH₃ is a methyl group.
  • The one on the left is branched. \begin{aligned}\text{CH}_3-&\text{CH}-\text{CH}_3\\[-0.5em]&\;|\end{aligned} This group can be formed by removing one hydrogen from the central carbon atom in propane. The name for this group is isopropyl.

Step Four: Number the atoms.

Isopropyl shall be placed before methyl. Start from the right end to minimize the index number on all substitute groups. The methyl group is on carbon number two and the isopropyl group on carbon number four. Hence the name:

4-isopropyl-2-methylheptane.

5 0
3 years ago
HELP ASAP!
sweet [91]

1. Meteorologist predict the weather by using tools. They use these tools to measure atmospheric conditions that occurred in the past and present, and they apply this information to create educated guesses about the future weather. The best we can do is observe past and present atmospheric patterns and data, and apply this information to what we think will happen in the future. Meteorologists use the scientific method on a daily – and even hourly – basis!

2. They use thermometers, barometers, sling psychrometers and rain gauges. They also use anemometers, hygrometers, weather maps, weather balloons and weather satellites.

8 0
3 years ago
Which of the following is a chemical change?
frutty [35]
C. rusting is the correct answer
3 0
3 years ago
Other questions:
  • Write the chemical equations showing how a buffer containing nh4cl and nh3 would neutralize added hcl and naoh (two equations).
    13·1 answer
  • How many grams of chlorine must be added to a balloon containing 8.00 grams of helium to double its volume?
    14·1 answer
  • How can you tell if an electric charge is present?
    13·1 answer
  • What was the unknown metal?
    8·2 answers
  • In a particular genetic cross, the probability of the offspring having a certain trait is Which percentage represents this proba
    6·1 answer
  • Me without you is like a nerd without braces, A shoe without laces, aSentenceWithoutSpaces.
    9·1 answer
  • (HELP) Vanessa is conducting an experiment to see how exposure to different types and amounts of light affects the growth of pea
    6·2 answers
  • A combination of salt and sugar grains is best classified as a mixture because...
    9·1 answer
  • What are the terms for A, B, C?<br> C<br> А<br> В
    14·1 answer
  • Which of the following reactions below could be properly categorized as a synthesis reaction?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!