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
NeX [460]
4 years ago
12

How many significant figures does 0.040040 have ?

Chemistry
1 answer:
Georgia [21]4 years ago
5 0

Answer: 2 is the answer

You might be interested in
When baking soda and vinegar react to certain surfaces up bubbles what does this mostly indicate
bekas [8.4K]

Answer:

a chemical reaction

Explanation:

4 0
3 years ago
The molar mass of magnesium (Mg) is 24.30 g/mol. There are 6.02 x 10^23 atoms in 1 mol. How many atoms are present in 48.60 g of
docker41 [41]
Atoms of Mg  =  mol  *  L
   
     mol of Mg =  \frac{MASS}{MOLAR  MASS}
 
                      =  \frac{48.60 g}{24.30 g / mol}
    
                      =  2 mol

∴ atoms of Mg  =  2 mol  *  ( 6.02  x  10²³)
                         =  1.204  x  10²⁴


6 0
4 years ago
Record your findings about sound and light waves for each of the following.
Troyanec [42]

Answer:

Sound waves travelling through the air: Sound waves travelling through air are just like longitudinal waves lacking compressions and rarefactions. The speed of sound waves in air is approximately 332 metres per second.

Light waves travelling through air: Light waves travel in air at a much faster rate than sound waves. Light waves can travel with a speed of 300 000 kilometres per second through air.

Sound waves traveling through metal: Sound waves travel about 17 times faster in metal as compared to air. The sound waves travel with an approximate speed of 5,960 meters per second in metals.

Light waves travelling through metal: The speed of light waves in a metal medium is usually at a net speed which is less than 3.00 x 108 m/s.

Light travels faster than sound waves because light waves are not pressure waves like the sound waves. They also do not require a medium as the sound waves.

7 0
3 years ago
ASAAAP HURRRY PLS!!!
Setler79 [48]
C or D! When reduced coenzymes produce in the process of the cycle, are oxidized in the process of oxidative phosphorylation in electron transport chain! I hope this helps :(
3 0
3 years ago
Read 2 more answers
The quantum number that determines the orientation of orbitals in space relative to other orbitals is called
Novay_Z [31]

Answer:

Magnetic Quantum Number

Explanation:

The quantum number that determines the orientation of orbitals in space relative to other orbitals is called the Magnetic Quantum No.

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the mass, in grams, of a sample of 1.20 × 1022 atoms of mercury (Hg)? Show your work or explain the steps that you used
    13·2 answers
  • This question deals with waste disposal in the Solutions and Spectroscopy experiment. What should be done to waste solutions con
    7·1 answer
  • What’s drugs produce a calming effect by slowing brain activity and reducing the heart rate
    6·1 answer
  • A cell created by cloning is genetically A identical to its parent. B identical to its stem cell. C unique because it is a mixtu
    13·1 answer
  • Balance the following equation <br><br><br> _NaOH (aq) + _HNO3 (aq)&gt; _NaNO3 (aq)+ _H2O (1)
    9·1 answer
  • When a 32.3 g sample of NaI (Sodium Iodide) dissolves in 90.0 mL of water in a calorimeter, the temperature rises from 23.5 ℃ to
    11·1 answer
  • A stable atom has 26 protons, 26 electrons, and 30 neutrons. Its atomic mass would be
    11·1 answer
  • 0.8 gram of divalent metal was dissolved in 100 CC of 1.28 N HCl and the solution was diluted to to 200 cc. then 50cc of this so
    5·1 answer
  • Which of the following is a liquid someone help!!!!!
    7·2 answers
  • How much heat energy is required to raise the temperature of 50g of bromine from 25°C to 30°C? [Specific heat capacity of bromin
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!