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
Blababa [14]
3 years ago
13

Which is the scientific notation for 8,002.5 seg?

Chemistry
1 answer:
Blizzard [7]3 years ago
7 0
8,002.5 would be written as 
8.0025 x 10 and 3
because you move the decimal place 3 times to the left.
You might be interested in
A sample of n2 effuses in 255 s. how long will the same size sample of cl2 take to effuse?
7nadin3 [17]
For this problem, we use Graham's Effusion Law to find out the rate of effusion of chlorine gas. The formula is as follows:

R₁/R₂ = √(M₂/M₁)

Let 1 be N₂ while 2 be Cl₂

255/R₂ = √(28/70.8)
Solving for R₂,
R₂ = 405.5 s

<em>Thus, it would take 405.5 s to effuse chlorine gas.</em>
4 0
3 years ago
Balance the equation for magnasuin and oxygen to yield magnasuimoxide
Minchanka [31]

Answer:

2Mg + O₂  →  2MgO

Explanation:

Chemical equation:

Mg + O₂  →  MgO

Balanced chemical equation:

2Mg + O₂  →  2MgO

The balanced equation s given above and it completely follow the law of conservation of mass.

Law of conservation of mass:

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

This law was given by french chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

Steps to balanced the equation:

Step 1:

Mg + O₂  →  MgO

Mg = 1         Mg = 1

O = 2           O = 1

Step 2:

2Mg + O₂  →  MgO

Mg = 2         Mg = 1

O = 2           O = 1

Step 3:

2Mg + O₂  →  2MgO

Mg = 2         Mg = 2

O = 2           O = 2

6 0
4 years ago
Is boron an element a compound a heterogeneous mixture or a homogeneous mixture?
liberstina [14]
The answer is heterogeneous mixture<span> because the </span>blood<span> cells are physically separate from the </span>blood<span> plasma.</span>
3 0
3 years ago
Give the name of one of the 3 common acids used in chemistry
FrozenT [24]
I think one is Hydrochloric acid
7 0
3 years ago
Read 2 more answers
Find the mass that corresponds to each number of
jeka94

Answer:159.7 g.

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Criteria for evaluating alternative solutions includes all of the following except :
    5·1 answer
  • What type of energy is this?
    7·1 answer
  • Calculate the expansion work done against a constant external pressure of 0.995 atm and at a constant temperature of 19°C. Assum
    11·1 answer
  • Calculate the amount of energy that is absorbed by 75 g.. water
    11·1 answer
  • A compound with an empirical formula of CH2O has a molar
    12·1 answer
  • 1. What is a chemical reaction
    11·2 answers
  • Which type of circuit has a string of lights and one light goes out but the others stay lit
    10·1 answer
  • Why did plants perform cellular respiration?
    5·2 answers
  • How many grams of Br are in 445 g CaBr2 ?
    5·1 answer
  • Summarize at least three steps needed to carry out Galileo's famous experiment to determine whether heavier objects
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!