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
pshichka [43]
3 years ago
5

Put in order from smallest to largest radii:

Chemistry
1 answer:
Akimi4 [234]3 years ago
3 0

Answer:

1. Ar, Cl, Al, Mg, Na

2. O, S, Se, Te, Po

Explanation:

Just remember the trends. From left to right, atomic radius decreases because proton increases and pulls electrons closer. From top to bottom, atomic radius increases because there are more electron shells.

You might be interested in
If the half-life of a radioisotope is 250 years how much of a 96.0 gram sample will remain after 750 years
telo118 [61]

Answer:

12 grams

Explanation:

96g=0 years

48g=250 years

24g=500 years

12g=750 years

4 0
3 years ago
Is a raccoon a carnivore
algol [13]
A raccoon is an omnivore
4 0
4 years ago
A compound with the empirical formula CH2 has a molar mass of 126g/mol. What is the molecular formula for this compound?
stellarik [79]

Answer: C10H20

Explanation:

C=12

H=1

(12+1)n=126

13n=126

n=126/13

n=10

Molecular formula

C10H20

3 0
3 years ago
Read 2 more answers
if you take 2.0mL of a 7.0 ppm NaOH solution and dilute it to 250.0mL, calculate the final concentration in ppm.
Oduvanchick [21]

Answer:

C₂ = 0.056 ppm

Explanation:

Given data:

Initial volume = 2.0 mL

Initial concentration = 7.0 ppm

Final volume = 250.0 mL

Final concentration = ?

Solution:

Formula:

C₁V₁ = C₂V₂

C₁ = Initial concentration

V₁ = Initial volume

C₂ = Final concentration

V₂ = Final volume

Now we will put the values in formula.

C₁V₁ = C₂V₂

7.0 ppm × 2.0 mL = C₂ × 250.0 mL

C₂ = 14.0 ppm.mL /250.0 mL

C₂ = 0.056 ppm

4 0
3 years ago
Fe2O3 + H2 --> Fe + H2O
sveticcg [70]
A) 10.0g of Iron is \frac{10.0}{55.8}=179mmol of Iron.

One mole of dihydrogen is required to form one mole of iron, hence you'll need 0.179*1.00=0.179g of dihydrogen.

B) Likewise : 2.50g of Iron is \frac{2.50}{55.8}=44.8mmol of Iron, hence we'll need 44.8*(3*16+2*55.8)=7.15g of Fe2O3.
4 0
4 years ago
Other questions:
  • What instrument is used to find the density of an object
    7·1 answer
  • Оҳvto
    6·1 answer
  • When 12 moles of o2 react with 1.1 mole of c10h8 what is the limiting reactant?
    5·2 answers
  • If 1.8 L of water is added to 2.5L of a 7.0 M KOH solution, what is the molarity of the new solution
    9·1 answer
  • Listed below are alterations made, one at a time, to the original experiment, and the experiment is repeated. after each alterat
    7·1 answer
  • Rearrange the equation for the area of a rectangle (A=l x w) to solve for length, L
    15·1 answer
  • Does rimmed steel contain nickel?
    13·1 answer
  • It requires two sticks of butter to make a batch of 20 cookies. How much butter will it take to make 150 cookies?
    11·1 answer
  • What the answer please help
    5·2 answers
  • What type of salt would you get in a reaction between an oxide and hydrochloric acid?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!