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
Dimas [21]
3 years ago
8

Whoever knows this will get brainliest

Chemistry
1 answer:
GREYUIT [131]3 years ago
3 0
The answer is A. Hope this helps
You might be interested in
The difference between a lamp and Tv using electrical energy
OLga [1]
Lamps heat up a coil inside a light bulb, TVs heat up tiny lamps behind liquid crystals to project a tiny image called a pixel
7 0
3 years ago
What does it mean when your teacher wants you to round 143 to two significant figures
zhenek [66]

Answer:The answer is 3...I think

Explanation:

143

Sig Figs

3

Decimals

0

Scientific Notation

1.43 × 102

5 0
3 years ago
Which of the following numerical expressions gives the number of particles in 2.0 g of Ne?
mojhsa [17]

Answer:

Number of particles = 2.0 g*(6.0 x 10^23 particles/mol) / 20.18 g/mol

Option C is correct

Explanation:

Step 1: Data give

Mass of Ne = 2.0 grams

Molar mass of neon = 20.18 g/mol

Number of Avogadro = 6.0 *10^23 /mol

Step 2: Calculate number of moles of neon

Moles Ne = Mass of ne / Molar mass of ne

Moles Ne = 2.0 / 20.18 g/mol

Moles Ne = 0.099 moles

Step 3: Calculate nulber of particles

Number of particles = 6.022*10^23 / mol * 0.099 moles = 5.96 *10^22

Number of particles = 6.022*10^23 * (2.0g/ 20.18g/mol)

Number of particles = 2.0 g*(6.0 x 10^23 particles/mol) / 20.18 g/mol

Option C is correct

7 0
3 years ago
What is the function of a restriction enzyme?
Advocard [28]
Main function of a restriction enzyme is to cleve (Cut) DNA bases.

Hope this helps!
5 0
3 years ago
The decomposition of SOCl2 is first-order in SOCl2. If the half-life for the reaction is 4.1 hr, how long would it take for the
qaws [65]
4.1 h = 14760 s 

<span>t 1/2 = ln 2 / k </span>

<span>k = rate reaction = 4.97 x 10^-5 </span>

<span>ln 0.045 / 0.36 = - 4.97 x 10^-5 t </span>

<span>2.08 = 4.97 x 10^-5 t </span>

<span>t = 41839.9 s = 11 h 37 min 19 s</span>
3 0
3 years ago
Other questions:
  • What combines to form compounds? A. atoms of elements B. molecules C. minerals D. valences
    10·2 answers
  • Using the information in the chart, the distance and displacement of each object can be determined. Which object has a distance
    7·2 answers
  • Explain why your hair might stand up when going down a slide.
    8·2 answers
  • 28.5g of iron shot is added to a graduate cylinder containing 45.50 mL of water. The water level rises to the 49.10 mL , From th
    8·1 answer
  • What is the basic (smallest) unit of matter
    5·1 answer
  • What is a cell and why do we need them?
    5·2 answers
  • 6. The concentration of a solution is : a)The amount of solvent needed to fully dissolve a solute b)The measurement of how large
    15·1 answer
  • 2. Which process is occurring in this photograph of a glacier?
    9·2 answers
  • Is this a good college to go
    13·1 answer
  • Question 16 of 30
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!