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
Vlad [161]
4 years ago
15

I got to do number 8 and it’s hard

Chemistry
1 answer:
Pani-rosa [81]4 years ago
5 0
How many times you have to do the experiment that is what trails are
You might be interested in
What is a nucleophile
Klio2033 [76]

Answer: Molecules or substances that have tendency to donate electrons

Explanation:

5 0
3 years ago
Read 2 more answers
Which fossil fuel accounts for 95% of consumption for transportation?
umka21 [38]
The answer is natural gasses
8 0
4 years ago
Read 2 more answers
Calculate the mass (in grams) of calcium carbonate present in a 50.00 mL sample of an aqueous calcium carbonate standard, assumi
horrorfan [7]
1 part per million is the same as 

<span>1 mcg/mL (mcg = 1 micro gram = 1 * 10^-6 grams). </span>
<span>125 ppm = 125 mcg/mL </span>

<span>125 mcg/ml * [1 gram / 1 * 10^6 mgrm] = 1.25 * 10^-4 grams </span>

<span>The density of hard water is 1.000 grams / mL </span>

<span>50 mL of water contains 1.25 * 10^-4 grams. </span>

<span>given mass = 1.25 * 10^-4 </span>
<span>Molar mass = 100.0 grams / mole </span>
<span>n = ????? </span>

<span>n = 1.25 * 10^-4/100 = 1.25 * 10^-6 moles. 

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

</span>
7 0
3 years ago
Can someone help me I would really appreciate it
slega [8]
The condensed formula would be CH3-CH(CH4)-CH2-CH(CH4)-CH2-CH(CH4)-CH3. The molecular formula would be C10H25.
8 0
4 years ago
10. Copper(i) bromide reacts with magnesium metal: 2 CuBr + Mg → 2 Cu + MgBrz
velikii [3]

Answer:

72.6 grams

Explanation:

I got this answer through stoichiometry.  For every 1 mole of Mg, 2 moles of CuBr are consumed.  Because of this, multiply the moles of Mg by 2.  Then, convert moles to grams.

5 0
3 years ago
Read 2 more answers
Other questions:
  • You preform an experiment using 4.0 m hcl. And 2.4 m naoh. The experiment calls for 5.0 ml of hcl and 10.0 ml of naoh. How many
    7·1 answer
  • Sodium carbonate, Na2CO3(s), can be prepared by heating sodium bicarbonate, NaHCO3(s). 2 NaHCO3(s) Na2CO3(s) + CO2(g) + H2O(g) K
    10·1 answer
  • Which question is most important to developmental psychology?
    9·1 answer
  • When 38.0 g of N2 is reacted with H2 and 40.12 g of NH3 are produced, what is the percent yield?
    12·1 answer
  • Can rocks include organic materials, but minerals cannot true or false
    5·1 answer
  • Which is NOT a reason why we use the scientific method?
    14·2 answers
  • If the amount of atoms of each type on the left and right sides of a reaction differ, what must be done to balance it?
    8·1 answer
  • Molar mass of 2(NH4)2SO4
    9·1 answer
  • Calculate the chemical amount of ammonia present in a 11.22g sample of the compound​
    12·1 answer
  • How many equivalent statements are needed to convert 23.4 Gm into mm? 20 points!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!