how would you distinguish a simple microscope from a compound one​

Answers

Answer 1

Answer:

A simple microscope employs a concave mirror. A compound microscope employs a plane mirror at one side and a concave mirror at the other. It contains only one adjustment screw to move the limb up and down for focusing on the object.

Answer 2

Answer:

D po

Explanation:

Sana nakatutulong

#Carry on learning

Pa brainliest po


Related Questions

A precious metal is _________________ a. An element with super and electric and thermal conductivity, high luster, and sensitivity. B. A highly sought after dense, shiny, soft precious metal that has been used as money for many centuries. C. An highly valuable element with super and electric and thermal conductivity, high luster, and sensitivity. D. A soft, sensitive, and lustrous element with the highest conductivity of any element. Please select the best answer from the choices provided A B C D.

Answers

Answer:

c.

an highly valuable element with super and electric and thermal conductivity, high luster, and sensitivity.

Explanation:

A precious metal is a highly valuable element with super and electric and thermal conductivity, high luster, and sensitivity, hence option C is correct.

How precious metal is differed from the base metal?

Rare metallic chemical elements with a high economic value are known as precious metals. The valuable metals are often less reactive chemically than most elements.

Iron-free metals and alloys are not considered base metals. Base metals have a propensity to tarnish, oxidize, or corrode with time or when exposed to the environment, in contrast to valuable metals.

Base metals typically cost less than precious metals since they are more plentiful in nature and sometimes easier to mine.

Therefore, a precious metal is a highly valuable element with super and electric and thermal conductivity, high luster, and sensitivity.

Learn more about metals, here:

https://brainly.com/question/31370233

#SPJ5

A doctor who specializes in treating diseases of nervous system

neurologist

nephrologist

ophthalmologist

cardiologist

Answers

the answer is neurologist

Please help! Its due now!

Answers

Answer:

PARTICLES!

I hope I was on time! Cheers! :^)

The third one I think

Consider the following chemical reaction.
3 Zn(C₂H₃O₂)₂(aq) + 2 Na₃PO₄(aq) → 6 NaC₂H₃O₂(aq) + Zn₃(PO₄)₂(s)

A chemist makes a solution of zinc acetate by dissolving 20.5 g Zn(C₂H₃O₂)₂ in 105 mL H₂O. What is the concentration of this zinc acetate solution?

Answers

The concentration of the zinc acetate, Zn(C₂H₃O₂) solution is 1.067 M

We'll begin by calculating the number of mole in 20.5 g of Zn(C₂H₃O₂)₂

Mass of Zn(C₂H₃O₂)₂ = 20.5 g

Molar mass of Zn(C₂H₃O₂)₂ = 65 + 2[(12×2) + (3×1) + (16×2)]

= 65 + 2[59]

= 183 g/mol

Mole of Zn(C₂H₃O₂)₂ =?

Mole = mass / molar mass

Mole of Zn(C₂H₃O₂)₂ = 20.5 / 183

Mole of Zn(C₂H₃O₂)₂ = 0.112 mole

Finally, we shall determine concentration of Zn(C₂H₃O₂). This can be obtained as follow:

Mole of Zn(C₂H₃O₂)₂ = 0.112 mole

Volume = 105 mL = 105 / 1000 = 0.105 L

Concentration of Zn(C₂H₃O₂)₂ =?

Concentration = mole / Volume

Concentration of Zn(C₂H₃O₂)₂ = 0.112 / 0.105

Concentration of Zn(C₂H₃O₂)₂ = 1.067 M

Therefore, the concentration of the zinc acetate, Zn(C₂H₃O₂) solution is 1.067 M

Learn more: https://brainly.com/question/25511880

what are the only elements that exist in nature as uncombined

Answers

Answer:

The noble gases (Argon, Neon, Xenon, Helium, Krypton, Radon)

The secondary structures shown in the protein are Question 12 options: A) α-helices and ß-pleated sheets. B) ß-pleated sheets. C) globular structures. D) α-helices.

Answers

Answer:

A. a- helixes and B-pleated sheats

Explanation:

A helical (a-helix) or flattened sheets (B-pleated sheet) like structures are established between opposite charge bearing groups of different amino acids are called Secondary Structures.

8. In an ionic bond, electrons are
electrons are
while in a covalent bond,
?

Answers

Answer:

in covalent bond electrons are shared by atoms

Solve the following problem. What is the mass of the object if it has a density of 657 g/mL and a volume of 32 mL?

Answers

Answer:

21,024 g

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question we have

mass = 657 × 32 = 21,024

We have the final answer as

21,024 g

Hope this helps you

A car travels 76 km/hr for 11 hours. How far did the car travel in this time period (in kilometers)?

Answers

Answer:

836 km

Explanation:

76*11=836

Answer:

836km

Explanation:

76km/hr = 76×1000÷3600= 190/9 m/s

11hours =39600 s

Distance=speed×time

Distance=190/9 × 39600= 836,000m

So distance is 836,000m or 836 km.

This method is possible only if body is moving linearly and the velocity is constant.

If there is uniform acceleration use Newton's laws of motion.

If is acceleration is varying then use calculus methods.

\huge\blue{\boxed{\tt{\colorbox{black}{NEED HELP}}}}[[


this is the text code sir​

Answers

Answer:

okay?

Explanation:

Answer:

[tex]\huge\blue{\boxed{\tt{\colorbox{black}{babyheaven}}}}[/tex]

Are crystals of different soluble solids similar?​

Answers

Crystals of different soluble solids  are not similar because they are  amorphous and   therefore  do not have definite crystals.

What are crystal solids?

A crystalline solid is a homogeneous solid in which the constituent particles, atoms, ions or molecules are arranged in a definite repeating pattern.

Most of the solid substances are crystalline in nature. The arrangement of particles in a crystalline solid is such that the total intermolecular force of attraction is at maximum.

Factors in which solubility depends are temperature, pH, and ionic strength.

Crystals of different soluble solids are not similar as they do not have definite crystals.

Learn more about crystal solids ,here:

https://brainly.com/question/769817

#SPJ2

Elige la respuesta que mejor describe cómo difieren el Monte Everest y el Valle de la Muerte.
El Monte Everest es plano y el Valle de la Muerte es el punto más alto de la Tierra.
O El Monte Everest es el punto más alto de la Tierra, y Death Valley es una montaña más pequeña.
El Monte Everest es el punto más alto de la Tierra, y el Valle de la Muerte es relativamente plano.

Answers

Answer:

El Monte Everest es el punto más alto de la Tierra, y el Valle de la Muerte es relativamente plano.

Explanation:

What happens when potassium forms an ion?

Answers

Answer:

It loses an electron and has an octet in the next-lowest energy level

Explanation:

What is the density of a 36 g object with a volume of 15 cm3? (Density: D = ) 0. 42 g/cm3 0. 54 g/cm3 2. 4 g/cm3 5. 4 g/cm3.

Answers

Answer:

2.4 g/cm3 is the correct answer.

Explanation:

Hope this helps

2. For each of the six elements aluminium (Al), boron (B), nitrogen (N), oxygen (O) phosphorus (P), sulfur (S), write down:
a. the period of the periodic table to which it belongs.
b. its group number in the periodic table.
c. its proton number (atomic number).
d. the number of electrons in one atom.
e. its electronic configuration.
f. the number of outer-shell electrons in one atom.
g. Which of the above elements would you expect to have similar properties?

Answers

2. For each of the six elements aluminium (Al), boron (B), nitrogen (N), oxygen (O) phosphorus (P), sulfur (S), write down:

a. the period of the periodic table to which it belongs.

b. its group number in the periodic table.

c. its proton number (atomic number).

d. the number of electrons in one atom.

e. its electronic configuration.

f. the number of outer-shell electrons in one atom.

g. Which of the above elements would you expect to have similar properties?

Elements in the same group of the periodic table tend to have similar chemical properties

What is the periodic table?

For Al;

a. Period: Period 3

b. Group: Group 13

c. Proton Number (Atomic Number): 13

d. Number of Electrons: 13

e. Electronic Configuration: 1s² 2s² 2p⁶ 3s² 3p¹

f. Number of Outer-Shell Electrons: 3

g. Similar Properties: Boron (B)

For Boron (B):

a. Period: Period 2

b. Group: Group 13

c. Proton Number (Atomic Number): 5

d. Number of Electrons: 5

e. Electronic Configuration: 1s² 2s² 2p¹

f. Number of Outer-Shell Electrons: 3

g. Similar Properties: Aluminium (Al)

For Nitrogen (N):

a. Period: Period 2

b. Group: Group 15

c. Proton Number (Atomic Number): 7

d. Number of Electrons: 7

e. Electronic Configuration: 1s² 2s² 2p³

f. Number of Outer-Shell Electrons: 5

g. Similar Properties: Phosphorus (P)

For Oxygen (O):

a. Period: Period 2

b. Group: Group 16

c. Proton Number (Atomic Number): 8

d. Number of Electrons: 8

e. Electronic Configuration: 1s² 2s² 2p⁴

f. Number of Outer-Shell Electrons: 6

g. Similar Properties: Sulfur (S)

For Phosphorus (P):

a. Period: Period 3

b. Group: Group 15

c. Proton Number (Atomic Number): 15

d. Number of Electrons: 15

e. Electronic Configuration: 1s² 2s² 2p⁶ 3s² 3p³

f. Number of Outer-Shell Electrons: 5

g. Similar Properties: Nitrogen (N)

For Sulfur (S):

a. Period: Period 3

b. Group: Group 16

c. Proton Number (Atomic Number): 16

d. Number of Electrons: 16

e. Electronic Configuration: 1s² 2s² 2p⁶ 3s² 3p⁴

f. Number of Outer-Shell Electrons: 6

g. Similar Properties: Oxygen (O)

Learn more about periodic table:https://brainly.com/question/31672126

#SPJ2

An alkyne with the molecular formula C5H8 was reduced with H2 and Lindlar's catalyst. Hydroboration-oxidation of the resulting alkene afforded a primary alcohol. What is the IUPAC name of the alkyne starting material

Answers

Since the addition of the H2O in the last step of hydroboration is anti-Markovnikov, the starting material is 1-pentyne.

The addition of H2 to C5H8 yields an alkene when a Lindlar catalyst is used. Recall that the Lindlar catalysts poisons the process so that the addition do not go on to produce an alkane.

When hydroboration is carried out on the alkene, we are told that a primary alcohol was obtained. We must note that in the last step of hydroboration, water is added in an anti- Markovnikov manner to yield the primary alcohol. Hence, the starting material must be 1-pentyne as shown in the image attached.

Learn more: https://brainly.com/question/2510654

Complete the sentence. When a base is added to water, hydrogen ions __________.

Answers

Answer:

Explanation:

Decreases

Answer:

Hydrogen ions decrease. It reduces the concentration of ions.

Explanation:

What is the concentration of a solution containing 1.0 g of sodium hydroxide in 250 cm³ of solution?

A- 0.025 mol/dm³
B- 0.10 mol/dm³
C- 0.25 mol/dm³
D- 1.0 mol/dm³​

Answers

Answer:

Correct option is

D-1.0mol/dm³

Mass of NaOH (m) = 1g

The volume of water (V) = 250 ml

Mol. wt of NaOH (m) = 40g/mol

Molarity (M) =M×V(ml)m×1000

M=40×2501×1000

M=101 or 0.1 M

what type of bond is between H2?

Answers

Explanation:

covalent bond enjoy your anseer

discussing the importance of the intelligence cycle in order to come up with intelligence

Answers

Answer:

Intelligence Analysis in a Cycle. Analysis resides within the larger intelligence cycle. The intelligence cycle determines the daily activities of the Intelligence Community. It starts with the needs of the intelligence "consumers' such as policymakers, military officials, and other decision makers who need intelligence for their activities.

Explanation:

can i get brainlist

Answer:

The Intelligence Community's daily activities are determined by the intelligence cycle. It begins with the requirements of intelligence "consumers," such as policymakers, military officials, and other decision-makers who require intelligence to carry out their tasks.

Explanation:

Hope it helps

The process of burning means to react a substance with:

Answers

it’s oxygen i’m pretty sure

(what is the meaning of aids?) (what is the meaning of cushions?) (name 5 citrus fruits) ( what are antibodies?) (what are hormones?)​

Answers

Answer:

Aids mean

a disease in which there is a severe loss of the body's cellular immunity, greatly lowering the resistance to infection and malignancy.

Cushions mean

a swollen floral system on which several small flowers are borne.

sweet mangogrape fruitpineapplelimelemon

What are antibodies

this is a blood protein produced in respond to an counteracting a antigen.

What are hormones

these are chemicals that the body releases during a period of time

Explanation:

When Newton started studying gravity, the concept of gravity was already in place.
A. True
B. False

Answers

True I hope this helps

the balloon was filed with perfume. How did the fragrance get out from the balloon? Name the process occured??​

Answers

Answer:

what tell me in your mojule

Explanation:

mmmmm

How many silicon atoms are in a typical computer microchip (0.001 g of silicon)?

Answers

The number of silicon atoms in atypical computer chips(0.001g of silicon) is 2.14 × 10¹⁹ atoms

The atomic mass of silicon = 28.0855 amu

Using the mole concept that 1 mole = 6.022  × 10²³.

This number is called the Avogadro's number.

Therefore,

1 mole /  28.0855g  of silicon contains 6.022  × 10²³ atoms of silicon

0.001 g will contain ? atoms of silicon

cross multiply

number of atoms of silicon = 6.022  × 10²³ × 0.001 / 28.0855

number of atoms of silicon = 6.022 × 10²⁰ / 28.0855

number of atoms of silicon = 2.14 × 10¹⁹ atoms

read more: https://brainly.com/question/13365002?referrer=searchResults

which ionization process requires the most energy?

Answers

Answer:

the second ionization energy

Explanation:

The second ionization energy is always larger than the first ionization energy, because it requires even more energy to remove an electron from a cation than it is from a neutral atom.

Which of these metric prefixes represent 1000?


(A). Centi

(B). Ecto

(C). Kilo

(D). Milli

Answers

The answer would be c

How long does it take for eggs to get to room temperature

Answers

Takes 30 mins for the egg to reach room temperature

6. (04.02 MC) Two chemical reactions are shown:

A. Ca(OH)2 → CaO + H2O
B. 4K + O2 → 2K2O

Which statement is true? (4 points)

A) Both are synthesis reactions.
B) Both are decomposition reactions. C) A is a synthesis reaction, and B is a decomposition reaction.
D) A is a decomposition reaction, and B is a synthesis reaction.

Answers

A. Ca(OH)₂ → CaO + H₂O is a decomposition reaction

B. 4K + O₂ → 2K₂O is a synthesis reaction.

The correct answer to the question is Option (D) A is a decomposition reaction, and B is a synthesis reaction.

A decomposition reaction is a reaction in which a large compound is broken into two or more products for example:

XY —> X + Y

A synthesis reaction is a reaction in which two or more substances combine to produce a single product. For example

C + D —> CD

With the above information in mind, we conclude that:

A. Ca(OH)₂ → CaO + H₂O is a decomposition reaction

B. 4K + O₂ → 2K₂O is a synthesis reaction.

The correct answer to the question is Option (D) A is a decomposition reaction, and B is a synthesis reaction.

Learn more: https://brainly.com/question/16987748

Answer:

d

Explanation:

When reactants are not used to make new substances, are they destroyed?

Answers

In a chemical reaction, only the atoms present in the reactants can end up in the products. No new atoms are created, and no atoms are destroyed. In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

Other Questions
What is the correct definition of rarefaction 1. A garden tool withcurved blade used forloosening ground andtaking up small plants. *A. BoloB. RakeC. ShovelD. Trowel Look at the images, read the sentences, and match each sentence with its correct image.Image 01, Mother and son communicating via sign language Image 02, Two young brothers reading from a book Image 03, Father and son in a car with the father teaching the son how to drive, an arrow is pointing to the son Image 04, Twin sisters riding a bicycleImage 01, John Birdsall MR / John Birdsall Social Issues Photo Library/ Press Association Images / Universal Images Group / Image Quest 2018Image 4, PARAMOUNT TV / Album / Universal Images Group / Image Quest 2018Match Term DefinitionImage 01 A) Mi hermana Susana no es gorda.Image 02 B) La madre es inteligente y paciente.Image 03 C) El hijo de Javier no es feo.Image 04 D) Al hermano de Germn le gusta leer. reflect on your own listening skills. how well do you process information as you listen? how well do you retain a speakers message? what are some techniques you can employ to improve each of these? Convert the decimal 0.92 to a fraction. Rewrite this run-on sentence dividing it into separate sentences, correctly punctuated and capitalized.My father is an important man and He wbrks all week so that I can eat, have clothes to wear, and have aplace to sleep and He repairs anything that breaks down around the house and He plays ball and buildsthings with me and He is my friend. (8-(2-2))993472118 What is the term for a section of a DNA molecule that codes for proteins? the endocrine system is responsible for communication in the body using 1 + tan^2 (/6) = _______.A. csc^2 (/6)B. sec^2 (/6)C. cot^2 (/6)D. 1 - tan^2 (/6) Element of Ghanaian Culture that bind the people together I need help asap!!!!!!!!!!!!!!!!!!!!!!! An item is priced at $13.35. If the sales tax is 8%, what does the item cost including sales tax? You may need to round your answer to the nearest cent. *First one to answer correctly get brainliest warren works at a distribution center that ships merchandise by truck to 300 stores. in order to handle complex transportation problems, what does warren rely on? The points (0, 0) and (5, 10) lie in the graph of this linear function. Which equation represents the same linear function? A. B. x = 5 C. D. y = 2x What are the consequences of increased nitrogen and phosphorus into water systems? (Site 3). does anyone know this i need it fast I need this really quick!! The Egyptian pharaohs __________.A) learned how to harvest grain at young ageB) were believed to be GodsC) had to attend school before becoming a rulerD) shared power with their advisers vA student found a book on the library bookshelf last week, and recorded the source information.Book title: My Traitors Heart Author: Rian MalanPublication date: 1990 Publisher: Bodley Head Publication city: LondonUse the drop-down menus to indicate how the student should format this source on a works-cited list. My Traitors Heart. London: