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
devlian [24]
3 years ago
5

The nearest star to the earth is Proxima Centuri. It is 4x1016 meters from New York City. The distance to Perth on the exact

Chemistry
1 answer:
Travka [436]3 years ago
3 0

Answer:

Proxima Centuri is 9 orders of magnitude further from New York compared to Perth

Explanation:

Distance of Proxima Centuri to New York = 4 × 10^16 meters

Distance of Proxima Centuri to Perth = 11000 miles

Since 1 mile = 1609 meters, distance to Perth in meters = 11000 × 1609

Distance to Perth = 17699000 = 1.7699 × 10^7 meters

Order of magnitude of the distances of Proxima Centuri to New York and Perth = 10^16/10^7

Order of magnitude = 10^9

Therefore, Proxima Centuri is 9 orders of magnitude further from New York compared to Perth.

You might be interested in
If 3.5 g H2 react with 18.7 g O2 what is the limiting reactant?
Pachacha [2.7K]
O2 is the limiting reactant 

3 0
4 years ago
Read 2 more answers
What is the volume (L) occupied by a mole of an ideal gas,
irina [24]

Answer:

29.2 L

Explanation:

Given data

  • Moles (n): 1 mol
  • Pressure (P): 0.824 atm

626mmHg.\frac{1atm}{760 mmHg} =0.824atm

  • Temperature (T): 293 K

We can find the volume of the gas (V) of the using the ideal gas equation.

P × V = n × R × T

V = n × R × T / P

V = 1 mol × (0.0821 atm.L/mol.K) × 293 K / 0.824 atm

V = 29.2 L

7 0
3 years ago
What is the h2 h2o molar ratio??
lara31 [8.8K]
2molH2: 1molO2:2molH2O
6 0
3 years ago
What is the scientific term for rocks formed from magma?
mihalych1998 [28]
I think it's D but not sure
8 0
4 years ago
Read 2 more answers
A chemist makes up a solution by dissolving 42.0 g of Mg(NO3)2 in enough water to produce a final solution volume of 259 mL. To
Igoryamba

Answer:

The molar mass of Mg(NO₃)₂, 148.3 g/mol.

Explanation:

Step 1: Given data

  • Mass of Mg(NO₃)₂ (solute): 42.0 g
  • Volume of solution: 259 mL = 0.259 L

Step 2: Calculate the moles of solute

To calculate the moles of solute, we need to know the molar mass of Mg(NO₃)₂, 148.3 g/mol.

42.0 g × 1 mol/148.3 g = 0.283 mol

Step 3: Calculate the molarity of the solution

M = moles of solute / liters of solution

M = 0.283 mol / 0.259 L

M = 1.09 M

7 0
3 years ago
Other questions:
  • Which correctly describes elements in the same group? select one:
    15·1 answer
  • Assume you have 60 micrograms (1 microgram = 10-6 gram) of pure u-238. how many nuclei n0 is this? (recall avogadro's number equ
    8·1 answer
  • Two methods of biotechnology used by scientists are described below.
    6·1 answer
  • All organisms contain special structures that store important information and perform many task to help the organisms survive. T
    5·1 answer
  • Which term matches the definition: the ability of an element to attract electrons within a covalent bond?
    6·1 answer
  • If I raise the Celsius scale by 15 degrees, how<br> much will I be raising it in the Kelvin Scale?
    9·1 answer
  • Please help me I am confused
    13·2 answers
  • Which statement describes a similarity between conductors and insulators?
    5·1 answer
  • When is a chemical equation considered balanced
    8·1 answer
  • If a peice of bread or cheese was not used in a sandwhich, what happend to it?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!