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
ycow [4]
3 years ago
15

Plz Help I have One more time To retake and I can't fail it..​

Chemistry
1 answer:
frosja888 [35]3 years ago
7 0

option(a)

Explanation:

You answer is correct as you move from left to right across a period. But, the question is asked regarding to the right to left across a period. So, as you move from right to left across a period, you can find firstly Non-metals, secondly Metalloids, and lastly Metals.

You might be interested in
Scientific inquiry attempts to search out, describe, explain, and predict things that happen in nature. Which of the following b
alexdok [17]
<span>By asking questions and collecting, analyzing, and interpreting data to answer them</span>
8 0
3 years ago
Read 2 more answers
3% Hydrogen Peroxide has an oral LD50 of 900 mg/kg. Acetic Acid has an oral LD50 of 3310 mg/kg. Which one is more hazardous to c
Maurinko [17]
LD50 is defined as the lethal dose 50% which describes the amount of material required to kill 50% of the testing population. It is given in units of mg of chemical per kg of bodyweight of the recipient. 

Comparing hydrogen peroxide and acetic acid, we see that peroxide has a lower LD50 of 900 mg/kg, with acetic acid having LD50 = 3310 mg/kg. When comparing LD50 values, the smaller value will be the more toxic compound. What this means is that in this case, a smaller amount of peroxide is required to kill 50% of the testing population compared to acetic acid.

Therefore, 3% hydrogen peroxide is more hazardous to consume.
7 0
3 years ago
How do scientists use DNA to study the origins of humans? a. Cloning c. Using Punnett squares b. Examining the number of chromos
Korolek [52]
B. examining the number of chromosomes in population
5 0
3 years ago
What is shown by the structural formula of a molecule or polyatomic ion?
Misha Larkins [42]
Answer : Option A) the arrangement of bonded atoms.


Explanation : A structural formula of certain molecule depicts the way the atoms are arranged in that particular molecule in any polyatomic species. It helps in deciding the chemical properties of that polyatomic molecule.
6 0
3 years ago
Read 2 more answers
What is the difference between liquid nitrogen and nitrogen gas​
Studentka2010 [4]

Answer:

The difference between liquid nitrogen and nitrogen gas is liquid nitrogen gas is man made or caused by humans but, nitrogen gas takes place naturally in the earths atmosphere.

Explanation:

Hope this helps :)

8 0
3 years ago
Other questions:
  • How many moles of silver chloride are produced from 15.0 moles of silver nitrate
    8·1 answer
  • List the elements Cs, Ca, Ne, Na, Ar in order of decreasing first ionization energy
    7·1 answer
  • In a man undergoing surgery, it was necessary to aspirate the contents of the uppergastrointestinal tract. After surgery, the fo
    15·1 answer
  • The following reaction was performed in a sealed vessel at 760 ∘C : H2(g)+I2(g)⇌2HI(g) Initially, only H2 and I2 were present at
    9·1 answer
  • What are three a ways orchids attract insects to spread their flower pollen
    6·1 answer
  • How many times does the moon rotate on its axis in one month
    14·1 answer
  • Will give brainlist
    12·2 answers
  • Which of these is a disadvantage of multicellular organisms?
    5·2 answers
  • How does brock answer the charge that euthanasianis the deliberating killing of na innocent person?
    12·1 answer
  • Aquien le elimina las respuestas
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!