« previous next »

Author Question: Elements in the same period generally have A) different properties. B) similar properties. C) ... (Read 100 times)

scienceeasy

  • Hero Member
  • *****
  • Posts: 565
on: Aug 27, 2018
Elements in the same period generally have
 
  A) different properties.
  B) similar properties.
  C) similar number of neutrons.
  D) similar chemical symbols.

Question 2

What is the missing particle in the reaction below?
 
  ? + 6Li  2 4He (alpha particles)
  A) 3H
  B) 1H
  C) 2H
  D) 4He

Question 3

What is the oxidation state of manganese in the compound KMnO4?
 
  A) +4
  B) +2
  C) +7
  D) -4

Question 4

A salt that can conduct electricity when it is dissolved in water is a(n)
 
  A) buffer.
  B) catalyst.
  C) electrolyte.
  D) indicator.


daiying98

  • Sr. Member
  • ****
  • Posts: 354
Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

C

Answer to Question 3

C

Answer to Question 4

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Major “identity elements” in some tRNAs Major “identity elements” in some tRNAs
Elements of Culture Elements of Culture
Anthropocene Period Anthropocene Period
Embryonic Period Embryonic Period
Fetal Period Fetal Period
Digital illustration of a fish that was believed to have become extinct during the Cretaceous Period Digital illustration of a fish that was believed to have become extinct during the Cretaceous Period
Video: Glomerubular filtrate rate -pressures that affect GFR and net filtration pressure

For a complete list of videos, visit our video library