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
Leokris [45]
2 years ago
14

How many square km is 2.5 x 107 m2 (don't write your answer in scientific notation)

Chemistry
1 answer:
jek_recluse [69]2 years ago
3 0

Answer:

0.0002675 square km that's all (if you want it in feet just comment below this)

Explanation:

You might be interested in
Can you tell the difference between an element and compound by measuring mass and volume?
vivado [14]
Yes, you can!




Hope this helped, and brainliest much needed and appreciated! Have a wonderful day!:)
8 0
3 years ago
Galvanized nails are iron nails that have been plated with zinc to prevent rusting. The relevant reaction is
umka21 [38]

Answer:

50. 5mol

Explanation:

The mass of Zinc required = 3.30 kg = 3300 grams

The relation between moles and mass is:

moles=\frac{mass}{atomicmass}

Atomic mass of Zinc = 65.38g/mol

molesofZinc=\frac{3300}{65.38}

molesofzinc=50.47mol

The answer to three significant figures will be 50.5 mol

3 0
2 years ago
What information does the atomic number provide about an atom?
rjkz [21]

Identifies the number of protons a single atom of the element contains.

The atomic number helps people identify elements according to the number of protons one atom of the element has. It essentially defines the element
6 0
2 years ago
Iron(II) sulfide has a molar mass of 87.91 g/mol. 50 grams of
dimaraw [331]

Answer:

true

Explanation:

7 0
3 years ago
Read 2 more answers
How many moles of atoms oxygen are in 4.92x10^24 molecules of KNO2?
Nana76 [90]

Answer:

8.17

Explanation:

from

N=n×La

n=N/La

n=4.92×10^24/6.022×10^23

n= 8.17 moles

8 0
3 years ago
Other questions:
  • What are the empirical formula and empirical formula mass for N2S3
    15·1 answer
  • Label the key for the weather map.
    8·1 answer
  • A monatomic ideal gas expands slowly to twice its original volume, doing 340 JJ of work in the process. Part APart complete Find
    13·1 answer
  • How many valence electrons are in atom of sulfur?
    10·1 answer
  • Which is a series circuit and a parallel circuit
    6·2 answers
  • Which feature causes a gap in the geologic record?
    10·1 answer
  • How many is too many
    7·1 answer
  • .<br> How many moles are there in 8.5 x 1024 molecules of sodium sulfate, Na2SO4?
    8·1 answer
  • More True Or False Questions ​
    8·1 answer
  • What evidence from the experiment shows that conduction occurred? In your answer, be sure to include the materials involved in t
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!