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
Scilla [17]
3 years ago
7

I need help asap please help me

Chemistry
2 answers:
Sindrei [870]3 years ago
7 0
Traits is the right answer
poizon [28]3 years ago
4 0
I think the correct answer is traits. Please brainiest me! :)
You might be interested in
How many grams of NaCl are in 0.50 moles of NaCl?
Semmy [17]
Hope this helps! 29.221385
7 0
3 years ago
Will mark branliest. Calculating percent yield: For the reaction Cu + 2AgNO3 → Cu(NO3)2 + 2 Ag, adding 127 grams of copper to lo
pishuonlain [190]

Percent yield = (Actual Yield/ Theoretical Yield) x 100

Given, Actual Yield of silver = 410 grams

Given, mass of copper = 127 g

Atomic mass of copper = 63.546 amu

Formula: Moles = mass / atomic mass

Moles of copper = 127 g/ 63.546 amu = 1.998 mol

Based on the given balanced chemical reaction, the molar ratio between Cu: Ag is 1:2

So 1.998 mol of copper should yield (2 mol Ag/ 1 mol Cu) x 1.998 mol of Cu = 3.996 mol

Calculated mol of Ag = 3.996 mol

Atomic mass of silver = 107.8682 amu

Mass of silver = moles x atomic mass = 3.996 mol x 107.8682 amu = 431 g

Based on the math, the theoretical yield = 431 g

Percent yield of silver = (410g/431g) x 100 = 95. 13%

The answer is 95. 13%

8 0
3 years ago
A stable community that no longer goes through ecological changes?
Tanya [424]
This is called a climax community. 
6 0
3 years ago
What is 0.05 kg mass in milligrams?
liberstina [14]
Convert 0.05 Kilograms to Milligrams (kg to mg) with our conversion calculator and conversion tables. To convert 0.05 kg to mg use direct conversion formula below. 
0.05 kg = 50000 mg.
<span>You also can convert 0.05 Kilograms to other Weight (popular) units.</span>
3 0
3 years ago
Read 2 more answers
A 2.89 g sample of a metal chloride, MCl2, is dissolved in water and treated with excess aqueous silver nitrate. The silver chlo
dsp73

Answer:

58.0 g/mol

Explanation:

The reaction that takes place is:

  • MCl₂ + 2AgNO₃ → 2AgCl + M(NO₃)₂

First we <u>calculate how many moles of silver chloride</u> were produced, using its <em>molar mass</em>:

  • 6.41 g AgCl ÷ 143.32 g/mol = 0.0447 mol AgCl

Then we <u>convert AgCl moles into MCl₂ moles</u>, using the <em>stoichiometric ratio</em>:

  • 0.0447 mol AgCl * \frac{1molMCl_2}{2molAgCl} = 0.0224 mol MCl₂

Now we<u> calculate the molar mass of MCl₂</u>, using the original<em> mass of the sample</em>:

  • 2.86 g / 0.0224 mol = 127.68 g/mol

We can write the molar mass of MCl₂ as:

  • Molar Mass MCl₂ = Molar Mass of M + (Molar Mass of Cl)*2
  • 127.68 g/mol = Molar Mass of M + (35.45 g/mol)*2

Finally we<u> calculate the molar mass</u> of M:

  • Molar Mass of M = 57 g/mol

The closest option is 58.0 g/mol.

6 0
3 years ago
Other questions:
  • The half-life of a certain element is 100 days. How many half-lives will it be before only one-eighth of this element remains?
    12·1 answer
  • A student prepares 150.0 mL of 1.40 M HCl using 35.0 mL of a stock solution. What is the concentration of the stock solution? Us
    5·1 answer
  • What is wrong with the following explanation of an experiment? When it was heated, the sample of carbon decomposed.
    5·1 answer
  • Conduction transfers thermal energy by____.
    13·2 answers
  • What is energy conversion​
    14·1 answer
  • PLEASE HELP ME DUE TOMORROW
    9·1 answer
  • Comprehension Questions:
    12·1 answer
  • Perform the following operation
    9·1 answer
  • A 0.6467-g portion of manganese dioxide was added to an acidic solution in which 1.1701 g of a chloride-containing sample was di
    7·1 answer
  • ANSWER PLS!!!!!!!!!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!