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
posledela
3 years ago
9

Which procedure must be completed before switching to high power objective on a microscope

Chemistry
1 answer:
Elis [28]3 years ago
7 0
1.turn  the  revolving  turret  so  that low  power  lens  come  into  position
2 place  the  microscope  slide  on  the  stage
3 look  at  the  objective  lens  and the  stage  from  the   side  as  you  turn   adjust  knob  so  that  stage   can  move  upward
4 look  through  the  eyepiece  and  move  the    focus  knob  until  image  come  into  focus
5.adjust  the   condenser   to regulate  thee  amount of  light
6 move  the  microscope  slide  around  until  the  sample  is  in  the   center of  field  of  view







You might be interested in
When electrodes are used to record the electrocardiogram, an electrolyte gel is usually put between them and the surface of the
klemol [59]

Answer:

The equivalent circuit for the electrode while the electrolyte gel is fresh

From the uploaded diagram the part A is the electrolyte, the part part B is the electrolyte gel when is fresh and the part C is the surface of the skin

Now as the electrolyte gel start to dry out the resistance R_s of the gel begins to increase and this starts to limit the flow of current . Now when the gel is then completely dried out  the resistance of the gel R_s then increases to infinity  and this in turn cut off flow of current.

The diagram illustrating this is shown on the second uploaded image

Explanation:

5 0
3 years ago
Which one of the following represents a decrease in entropy?
Leni [432]

Answer:

D

Explanation:

There are principally three states of matter. These are the solid, liquid and gaseous states. The gaseous state has the highest degree of disorderliness as gas particles can move randomly while the solid state has the highest level of compactness.

Hence, we need to be adequately fed with information as regards the phase change to know if entropy has decreased or increased.

A. is wrong

Evaporation is a change of state to the gaseous state meaning there is an increased entropy.

B. is wrong

Sublimation is a change of state which means a solid substance like iodine or naphthalene changes its state directly to the gaseous state. There is an increased entropy here too.

C is wrong

Melting of ice means going from ice block to liquid water. This is synonymous to going from the solid state to the liquid state which is an increased entropy

D is correct

Condensation involves going from the gaseous state to the liquid state. This means going from a less ordered state to a more ordered state. This is accompanied by an entropy decrease.

E is wrong

While there are some processes that increase entropy, we also have some process that decrease entropy.

7 0
3 years ago
What element does silver nitrate and sodium phosphate form when combined?
creativ13 [48]
AgNO3+Na3P04=Ag3PO4....
7 0
3 years ago
Please help me with this question it’s really confusing lol. Question 21. Thank youuuu!! :))
bagirrra123 [75]

Answer:

You must write an article if you think there is a link between it asteroid impact and a dinosaur's extinction. explain the correlation between the two events I'm provide evidence within the article that you write that supports your claims.

8 0
2 years ago
Which product formed when MgO and H2O react together?
seropon [69]
When MgO and H2O react they form Magnesium Hydroxide Mg(OH)2
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following substances does not conduct electricity
    6·1 answer
  • It takes one oxygen to combine with two hydrogen atoms to form water. What is the mass ratio of oxygen to hydrogen? 1 to 2 4 to
    6·1 answer
  • How many atoms are there in a molecule?
    6·1 answer
  • Initially, the chalk had a mass of 323.5 grams but upon completion, its mass had dropped to 301.2 grams. What is the change in m
    12·1 answer
  • Calculate the [H+] for<br> (a) black coffee with a pH of 3.59
    7·1 answer
  • When a wavelength (increases/decreases) the frequency (increases/decreases) and the energy (increases/decreases)
    7·1 answer
  • All answers must have the correct unit! (g/mL) d= mass/volume, d= masa/volumen
    13·1 answer
  • How many moles are in 98.3 grams of NaF?
    10·2 answers
  • What type of chemical bond holds the sulphur and fluorine atoms together in sulphur hexafluoride molecules?
    12·2 answers
  • What does hydrochloric acid do
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!