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
BlackZzzverrR [31]
3 years ago
15

An udentified substance, Y, was thought to be one of the following three compounds.

Chemistry
1 answer:
arlik [135]3 years ago
7 0
This is more logic deduction than having learnt this, but i would think Y = B because it hasnt affected the melting point, implying its the same substance? hope this helps a bit :)
You might be interested in
PLEASE HELP it would be really nice of you to answer this question i would be very grateful <3
Aleksandr-060686 [28]

Answer: D (The abundance percentage of each isotope)

Explanation: hope this helps!

7 0
3 years ago
Read 2 more answers
An acid sample of an unknown concentration is contained in a erlenmeyer flask. Which technique below would be best suited to ana
Ivenika [448]

Answer:

Titration

Explanation:

The best technique which can be used to determine the number of moles of the HCl in the sample is titration.

The given amount of HCl solution must be titrated with known concentration of the base like NaOH.

The volume of NaOH required must be noted also.

According to the reaction,

NaOH+HCl\rightarrow NaCl+H_2O

At equivalence point

Moles of HCl = Moles of NaOH

Considering:-

Moles of HCl=Molarity_{NaOH}\times Volume_{NaOH}

Thus, in this way, moles of HCl can be determined.

4 0
3 years ago
It has been hypothesized that a chemical known as BW prevents colds. To test this hypothesis, 20,000 volunteers were divided int
Amiraneli [1.4K]

Grams of BW

i think thats irtu9rgirg

8 0
3 years ago
Lauryl alcohol is a nonelectrolyte obtained from coconut oil and is used to make detergents. A solution of 6.80 g of lauryl alco
natka813 [3]

Answer:

The approximate molar mass of lauryl alcohol is 174.08 g/m

Explanation:

An excersise to apply the colligative property of Freezing-point depression.

This is the formula: ΔT = Kf . m

First of all, think the T° of fusion of benzene → 5.5°C

ΔT = T° pure solvent - T° fusion solution

Kf for benzene: 5.12 °C/m

5.5°C - 4.5°C = 5.12 °C /m  . m

1°C /  5.12 m /°C = m

0.195 m = molality

This moles of lauryl alcohol, solute, are in 1 kg of benzene, solvent.

I have to find out in 0.2 kg.

1 kg sv ____ 0.195 moles solute

0.2 kg sv ____ (0.195 . 0.2)/1 = 0.039 moles solute

The mass for these moles is 6.80 g, so if I want to know the molar mass, I have to divide mass / moles

6.80 g/ 0.039 moles = 174.08 g/m

5 0
3 years ago
Which of the following metals may tarnish to a greenish-blue color called verdigris
hoa [83]
Copper. thats the way copper oxidized. like the statue of liberty 
3 0
3 years ago
Read 2 more answers
Other questions:
  • . If you constructed graphs, what trends do they indicate in your data?
    9·1 answer
  • Use chemical formulas to write the equation for the reaction between carbon and oxygen
    7·1 answer
  • Several different species of birds, including heron, flamingos, and skimmers, can all successfully feed along the coast because
    8·1 answer
  • In order for a chemical reaction to take place, a certain amount of _____________ must be present. A. heat B. friction C. chemic
    13·2 answers
  • Is hydrogen a solid liquid or gas?
    8·1 answer
  • Inversion is a type of mutation that
    11·2 answers
  • What are some important things in this paragraph ???? BRAINLIST WILL BE AWARDED!
    12·1 answer
  • Write a Formula<br> Compound Name: Strontium Sulfate
    11·2 answers
  • Bryan and Alyssa are playing tug-of-war against Daniel and Maria. Bryan and Alyssa are exerting a combined force of 10 N. Daniel
    13·1 answer
  • What does neural mapping allow
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!