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
lubasha [3.4K]
3 years ago
11

What's the purpose of a compounds lab

Chemistry
2 answers:
____ [38]3 years ago
8 0

Answer:

The purpose of a lab report is to organize and communicate what you did in your experiment.

Explanation:

dalvyx [7]3 years ago
8 0

Answer:

Compound microscopes are used to view small samples that can not be identified with the naked eye.

Explanation:

These samples are typically placed on a slide under the microscope. When using a stereo microscope, there is more room under the microscope for larger samples such as rocks or flowers and slides are not required.

Hope this helps :)

You might be interested in
15. conjugated dienes routinely undergo 1,2 and 1,4 addition reactions with a variety of electrophilic reagents; this suggests t
son4ous [18]

Conjugated dienes routinely undergo 1,2 and 1,4 addition reactions with a variety of electrophilic reagents; this suggests that electrophilic reagents are likely intermediates during these reactions.

Two double bonds and one single bond divide a conjugated diene into two halves. Nonconjugated (Isolated) Dienes have more than one single bond separating two double bonds. Two double bonds are joined to the same atom to form cumulated dienes.

Reagents that function by acquiring electrons or sharing electrons that once belonged to a foreign molecule are referred to as electrophilic reagents, or electrophiles, in some cases. Electrophiles are molecules with a positive charge and a lack of electrons that can react by exchanging electron pairs with nucleophiles, which have many electrons. Epoxides, hydroxy amines, nitroso and azoxy derivatives, nitrenium ions, and elemental sulfur are significant electrophiles.

To know more about Electrophiles refer to: brainly.com/question/21773561

#SPJ4

7 0
2 years ago
Which of the first 20 elements in a Periodic table has atoms with the greatest mass?​
Rainbow [258]
Calcium has the greatest mass of the first twenty elements with a mass of approximately 40.08
4 0
1 year ago
gypsum is insoluble in water. you are asked to purify a sample of gypsum that is contaminated with a soluble salt.
katen-ka-za [31]

Answer:

a. The apparatus required to purify gypsum sample are: Bunsen burner, beaker, Filter Funnel, stirring rod, the filter paper.

b. Gypsum is a sulfate mineral that is made up of calcium sulfate dihydrate. Step-by-step instruction to purify gypsum sample is as follows:

1. Add water to the gypsum sample in a beaker.

2. Use the stirring rod to mix the mixture well.

3. Filter off the excess solid from the mixture using the filter paper and filter funnel.

4. Put the filtered mixture over the bunsen burner and evaporate the excess water from the mixture.

5. Allow the hot liquid to cool down and filter it again through the filter paper to get the pure gypsum.

7 0
3 years ago
Certain substances have a degreasing effect. Which of the substances below has a degreasing effect in solution?
Eduardwww [97]

Answer:

Sodium Carbonate

Explanation:

Washing Soda�Sodium Carbonate (Na2CO3) (Na = Sodium, water softening)

Sodium softens water by binding with Calcium and Magnesium forming solid, which can be rinsed off the fabric. �However, if not rinsed thoroughly, the minerals can redeposit onto the fabric and cause problems. �

3 0
3 years ago
A laboratory technician combined sodium hydroxide with excess iron(II) nitrate. A reaction took place according to this chemical
Whitepunk [10]

 The initial  mass  of sodium hydroxide  is  3.3 g (answer C)

 <u><em>calculation</em></u>

Step 1 : find the  moles of iron (ii) hydroxide (  Fe(OH)₂

moles =  mass÷  molar mass

from periodic table the  molar mass of Fe(OH)₂  = 56 + [16 +1]2  = 90 g/mol

moles  is therefore = 3.70 g÷ 90 g/mol = 0.041 moles

Step 2:  use the mole ratio to  calculate the moles of  sodium hydroxide (NaOH)

   from given equation  NaOH : Fe(OH)₂    is 2 :1

therefore the moles of NaOH = 0.041 x 2 = 0.082 moles

Step 3: find  mass of NaOH

mass = moles x molar mass

from the periodic table the  molar mass of NaOH = 23 +16 +1  = 40 g/mol

mass  = 0.082  moles x 40 g/mol = 3.3 g ( answer C)


8 0
3 years ago
Other questions:
  • Explain why organisms are more likely to be well preserved in mud than in sand
    11·1 answer
  • Write equations for the ionization of hno3 in water and the reaction of co32- with water. for each equation, identify the hydrog
    8·1 answer
  • The final volume of the solution is 284 mL. What is the concentration of CuSO4 in the final solution, in mol/L?
    15·1 answer
  • Using the formula for velocity shown below, what is the average velocity of a bicyclist who biked 20 miles north of where he beg
    13·1 answer
  • The mass of proton<br>1) 1072* 10-28​
    10·1 answer
  • When an object such as a rock is dropped into water it disturbs the surface of the water waves form at the surface of the water
    11·1 answer
  • Why can a heavy rain shower cause a large amount of erosion in a desert area?
    12·2 answers
  • Given a fixed amount of gas held at constant pressure, calculate the volume it would occupy if a 2.00 L sample were cooled from
    12·1 answer
  • Acetyl-CoA labeled with 14C in both of its acetate carbon atoms is incubated with unlabeled oxaloacetate and a crude tissue prep
    10·1 answer
  • Answer quick plssssssssss
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!