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
Fiesta28 [93]
3 years ago
7

Must show units and how they cancelli 1.) 175 km to um 3.) 385 nm to dm 5.) 492 um tom 7.) 52 x 103 dm to mm 9.) 321x 1035 mm to

km 11.) 456 x 103 m to km 13.) 422 x 103 m to nm 15.) 4.87 x 1030m to pm 17.) 5.26 x 103 m to um 19.) 1.25 x 1035 m to Mm 21.) 4.22 x 103 Tm to nm
Chemistry
1 answer:
morpeh [17]3 years ago
6 0

Explanation:

1.) 175 km to μm

1 km=10^9 \mu m

175 km=175\times 10^9\mu m=1.75\times 10^{11} \mu m

3.) 385 nm to dm

1 nm=10^{-8} dm

385 nm=385\times 10^{-8} dm=3.85\times 10^{-6} dm

5.) 492 μm  to m

1 μm =  10^{-6} m

492 \μm=492\times 10^{-6} m=4.92\times 10^{-4} m

7.) 52\times 10^3 dm to mm

1 dm = 100 mm

52\times 10^3 dm=52\times 10^3\times 100 mm=5.2\times 10^{6}dm

9.) 321\times 10^{35} mm to km

1 mm = 10^{-6} km

321\times 10^{35} mm=321\times 10^{35}\times 10^{-6} km=3.21\times 10^{31} km

11.) 456\times 10^3 m to km

m = 0.001 km

456\times 10^3m =456\times 10^3 m\times 0.001 km=456 km

13.) 422\times 10^3 m to nm

1 m = 10^{9} nm

422\times 10^3 m=422\times 10^3\times 10^{9} nm=4.22\times 10^{14} nm

15.) 4.87\times 10^{30} m to pm

1 m = 10^{12} pm

4.87\times 10^{30} m=4.87\times 10^{30}\times 10^{12} pm=4.82\times 10^{42} pm

17.) 5.26\times 10^3 m to um

1 m =  10^{6} \mu m

5.26\times 10^3 m=5.26\times 10^3\times 10^6 \mu m=5.26\times 10^{9} \mu m

19.) 1.25\times 10^{35}m to Mm

1 m =  10^{-6} Mm

1.25\times 10^{35} m=1.25\times 10^{35}\times 10^{-6} Mm=1.25\times 10^{-29} Mm

21.) 4.22\times 10^3 Tm to nm

1 Tm = 10^{21} nm

4.22\times 10^3 Tm=4.22\times 10^3\times 10^{21} nm=4.22\times 10^{24} nm

You might be interested in
What is a property of most metals?
Dmitry_Shevchenko [17]
(2) They tend to lose electrons easily when bonding is the correct answer.

All metals have either one, two, or three valence electrons. Therefore, they tend to lose these valence electrons in order to have eight valence electrons like noble gases do.

Hope this helps~
5 0
3 years ago
A geochemist examines a piece of metal that he found in the soil. He performs tests to identify the metal from its density, elec
aniked [119]

Answer:

what r the statements?

Explanation:

attach or write them

3 0
3 years ago
10. Identify the products in the combustion of methane.
Oksanka [162]

Answer:

a. CO2 and H20

Explanation:

Chemically, this combustion process consists of a reaction between methane and oxygen in the air. When this reaction takes place, the result is carbon dioxide (CO2), water (H2O), and a great deal of energy. The following reaction represents the combustion of methane:

CH4[g] + 2 O2[g] -> CO2[g] + 2 H2O[g] + energy

One molecule of methane, (the [g] referred to above means it is gaseous form), combined with two oxygen molecules, react to form a carbon dioxide molecule, and two water molecules usually given off as steam or water vapor during the reaction and energy.

8 0
2 years ago
Match the terms to the correct 
Nadusha1986 [10]
This type of energy travels through vibrations on waves = 7. sound energy

This is the energy found in the nucleus of an atom = 9. nuclear energy

This type of energy can be transferred in three different ways = 6. thermal energy

This is the term used when energy changes from one form to another = 10. energy conversions

This has to do with the speed of an object and how much mass it has = 2. kinetic energy

This can be either kinetic or potential and has to do with the energy of position and motion of an object = 1. mechanical energy

This type of energy is stored energy = 3. potential energy

This is radiant energy from the sun = 5. light energy

This is energy that is transferred by the movement of electrons through a conductor = 4. electrical energy 

This type of energy is often found in things like batteries or food = 8. chemical energy

hope this helps
6 0
3 years ago
Read 2 more answers
3. Describe what happens to chemical bonds as a chemical reaction is taking place.
alisha [4.7K]

Answer:

1. In a chemical reaction, the atoms and molecules that interact with each other are called reactants. ... No new atoms are created, and no atoms are destroyed. In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

2. Given below are some of the examples of the chemical reactions in our daily life:

Photosynthesis.

Combustion.

Aerobic cellular respiration.

Anaerobic respiration including the process fermentation.

Metathesis reactions, for example, vinegar and baking soda.

Oxidation which includes rusting.

Digestion.

3. A chemical formula is the combination of atomic symbols that designate a particular chemical compound, or a substance with two or more different elements. ... A chemical equation shows one or more chemical compounds (reactants) being converted into different chemical species called products.

5 0
3 years ago
Other questions:
  • You determine that it takes 26.0 mL of base to neutralize a sample of your unknown acid solution. The pH of the solution when ex
    5·1 answer
  • Which is the best term to use when describing the energy of position?
    15·2 answers
  • How many formula units are contained in 23.5 g of Sb2S3
    10·2 answers
  • How many liters of carbon dioxide will 0.5 moles of lithium hydroxide (LiOH) absorb?
    8·1 answer
  • Who invented the thermometer
    14·1 answer
  • How could you determine which household substances are acids, bases, or neutral substances?​
    11·1 answer
  • Consider the heating curve for water. A graph of the heating curve for water has time in minutes on the horizontal axis and Temp
    12·1 answer
  • Which of the following has the greatest influence on the size and force of waves?
    10·2 answers
  • How many grams of silver bromide are produced when 505 grams of cobalt (III) bromide reacts completely in the following equation
    5·1 answer
  • Which formula correctly represents antinomy trichloride?<br> SnS2<br> SnCl3<br> SbCl2<br> SbCl3
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!