This is the stable structure on which the microscope firmly rest. *​

Answers

Answer 1

Answer:

Explanation:

As far as the function of the microscope is concerned, they play the most important role. ... These are parts that support the microscope and the object being examined. Base. This is the stable structure on which the microscope firmly rests.


Related Questions

differentiate between nuclear charge and effective nuclear charge​

Answers

hope it helps ..............

Cell division resulting in two new nuclei having the same number of chromosomes as the
original nucleus is called

Answers

Cell division resulting in two new nuclei having the same number of chromosomes as the

original nucleus is called mitosis

why are ionic solids brittle

Answers

Answer:

-The ionic solids are hard and brittle because the ions in ionic solids are held in a lattice due to the electrostatic forces of attraction in cations and anions as well as the repulsion with the like charges. ... Because the ionic solids are localized, these solids tend to be stiff and brittle like covalent solids.

Explanation:

Calculate the average atomic mass for the element beryllium, given this information about the
relative abundance of its 3 isotopes.
Be-8 = 0.2% Be-9 = 98.9% Be-10 = 0.9%. Please show all your work.

Answers

Answer:  9.007

Explanation:

Be-8  8 x   0.20%  = 0.016

Be-9 9 x 98.90% =     8.901

Be-10 10 x 0.90%  =        0.09

        100.00%       9.007

Which quantity determines how two atoms bond? (1 point)
O the difference in the number of valence electrons
o their total number of valence electrons
o the sum of their electronegativities
O the difference in their electronegativities

Answers

The quantity which determines how two atoms bond is; The difference in their electronegativities.

The electronegativity value of an element is a measure of its electron affinity.

In essence, the electronegativity value of an element determines if the element is an electron donor or acceptor.

Ultimately, the difference between the electronegativities of two atoms determines how the atoms bond.

Read more:

https://brainly.com/question/18258838

complete and balance the equation pb3o4+hcl​

Answers

ur so ok.

Explanation:

i need points ok.

thanks

Pb3o4 + 8hcl = 3pbcl2 + 4h2o + cl2

A front is a boundary between two _________ ________. *
A. Bodies of land
B. Bodies of water
C. Air masses
D. Cloud sides

Answers

Answer: c

Explanation:

Answer:

C. Air masses

Explaination :

depending on the air masses involved and which way the fronts move, fronts can be either warm, cold, stationary, or occluded.

Which two statements describe a mixture?
O A. It is a pure substance.
O B. It includes atoms of different elements.
O C. Its parts can be separated using physical means.
O D. It can result from chemical bonding.

Answers

Answer:

d

Explanation:

because the chemicals or substances mix together so it's basically like chemical bonding.

I pretty sure its B and C

When solid sodium hydroxide is dissolved in water,the temperature of the soution formed rapidly increases. a) compare the total energy of the solid NaOH with that of the solution and state which is greater.​

Answers

Answer:  In a perfectly isolated system, the total energy is the same.

Explanation:  The conservation laws for mass and energy hold in a system that is isolated from its surroundings.  The enegy released by the dissolution of solid NaOH in water is absorbed by the water.  So the total energy of the syetm remains the same.  It is simply converted from lattice energy of the NaOH into heat energy as measured by the temperature of the water.  As long as it is operfectly isolated, the total energy remains the same.

Why is the nitrogen group considered a mixed group?

Answers

Explanation:

The nitrogen group is considered mixed because it is composed of elements of equally different classifications of metal, non-metal, and metalloids.  The group contains the nonmetals nitrogen (N), and phosphorus (P), the metalloids arsenic (As) and antimony (Sb), and the metals bismuth (Bi) and Moscovium (Mc).

In periodic table, metal, nonmetal and metalloids are mixed in group is know to be mixed group. Nitrogen group is mixed.

Define periodic table?

The periodic table is a tabular array of the chemical elements organized by atomic number, from the element with the lowest atomic number, hydrogen, to the element with the highest atomic number. There are five parts in periodic table Component Groups, Ionic Bonds, element periods, and so forth, ionic bonds and Bonds made of metal.

The nitrogen group is said to be mixed because it is contains metal, nonmetal and metalloids. Elements can be classified into metal, non-metal, and metalloids.  Nitrogen group mixed group contains the nonmetals nitrogen (N), and phosphorus (P), the metalloids arsenic (As) and antimony (Sb), and the metals bismuth (Bi).

To find more about elements, refer the link below:

brainly.com/question/14347616

#SPJ5

chemical properties of Carbon iv oxide​

Answers

Explanation:

Carbon Dioxide is a colorless, odorless, incombustible gas resulting from the oxidation of carbon. Carbon dioxide appears as a colorless odorless gas at atmospheric temperatures and pressures. Heavier than air and may asphyxiate by the displacement of air.

How is thermal energy transferred by convection, conduction, and radiation?

Answers

Answer:

Radiation is responsible for most of the heat transferred into the room. Heat transfer also occurs through conduction into the room, but at a much slower rate. Heat transfer by convection also occurs through cold air entering the room around windows and hot air leaving the room by rising up the chimney.

When a fluid, such as air or a liquid, is heated and then travels away from the source, it carries the thermal energy along. This type of heat transfer is called convection. The fluid above a hot surface expands, becomes less dense, and rises. ... A space heater is a classic convection example.

QUESTION 5
A. Aluminum carbonate
(03.04 LC)
Match the formula to the correct name.
Al2O3
e Al(HCO3)3
Al2(CO3)3
B. Aluminum oxide
C. Aluminum bicarbonate
QUESTION A

Answers

The chemical formula of aluminium carbonate is written as Al2(CO3)3.

The chemical formula of a compound is a representation of the atoms that compose the compound. Usually, the chemical formula is derived from the name of the compound.

We know that the carbonate ion is CO3^2- while the aluminium ion is Al^3+. It follows that the compound, aluminium carbonate ought to have the formula, Al2(CO3)3. The compound aluminum oxide has the formula Al2O3 while the compound aluminum bicarbonate has the formula Al(HCO3)3.

Learn more about chemical formula: https://brainly.com/question/4102170

What pressure is required to achieve a CO2 concentration of 0.0620 mol L−1 at 20∘C?

Answers

Considering the definition of ideal gas law,  a pressure of 1.5 atm is required to achieve a CO₂ concentration of 0.0620 mol L⁻¹ at 20°C.

An ideal gas is a theoretical gas that is considered to be composed of point particles that move randomly and do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law, an equation that relates the three variables if the amount of substance, number of moles n, remains constant and where R is the molar constant of the gases:

P×V = n×R×T

So the pressure is calculated as:

[tex]P=\frac{n}{V}xRxT[/tex]

In this case, you know:

[tex]\frac{n}{V} = 0.0620 \frac{mol}{L}[/tex]R= 0.082 [tex]\frac{atmL}{molK}[/tex]T= 20 C= 293 K

Replacing:

P=0.0620 [tex]\frac{mol}{L}[/tex]× 0.082 [tex]\frac{atmL}{molK}[/tex]× 293 K

Solving:

P= 1.489612 atm≅ 1.5 atm

Finally, a pressure of 1.5 atm is required to achieve a CO₂ concentration of 0.0620 mol L⁻¹ at 20°C.

Learn more:

https://brainly.com/question/4147359?referrer=searchResults

Consider the molecule below. Determine the molecular geometry at each of the 2 labeled carbons. HELP ME PLEASE ASAP

C1 = trigonal planar, C2 = bent
B
C1 = trigonal planar, C2 = tetrahedral
C
C1 = bent, C2 = trigonal planar
D
C1 = tetrahedral, C2 = linear

Answers

The hybridization state of the atom determines its shape in the molecule. C1  is sp2 hybridized and has trigonal planar geometry while C2 is sp3 hybridized and has a tetrahedral geometry.

The shape of a molecule or a moiety in a molecule is determined by the number of electron pairs that are present on the valence shell of the central atom in the molecule.

The hybridization state of the atom also determines the shape of the atom. In the compound, the carbon atom labelled 1 is sp2 hybridized so it will have a trigonal planar geometry. The carbon atom labelled 2 is sp3 hybridized hence it is tetrahedral.

Learn more: https://brainly.com/question/10079361

Calculate the relative formula mass for KMnO4

Answers

Explanation:

please mark me as brainlest

does iron and lead oxide react vigorously

Answers

Answer:

Fe will displace On but no the reaction is not vigorous.

Theoretical yield of NaHCO3 = Na + H2O + CO + CO2

Answers

Answer:

C - 2 e- → C

Explanation:

2 NaHCO3 → 2 Na + H2O + -1 CO + 3 CO2

2 NaI + 2 e- → 2 Na0

C - 2e - C

write the relation between group number and electronic configration

Answers

Answer:

Explanation: the number of circles in the electronic configuration of an element is represented in the periodic table as the period number that element is situated in. the number of electrons in the outermost shell of an element is represented in the periodic table as the group number that element is situated in.

Determine whether each of the following reactions is spontaneous.

AHsystem = -75.9 kJ, T = 273 K,
ASsystem = 138 JIK

Answers

Answer:

gxibdkkzvsosvjzkxvdkbdsibsisbdkbslabdldvslbskskd

nono noonobbvyubojikkhbjhbjhb mj bk n

Answers

ヾ( ̄▽ ̄) Hello :)
ヾ( ̄▽ ̄) Hello :)

why should bunsen burners not be used when heating organic materials?

Answers

Answer:

Many organic compounds are very flammable.

Explanation:

Because we do not want to inadvertently ignite chemicals and cause a fire or explosion. Most organic chemicals are incompatible with inorganic chemicals, and certain mixtures can cause violent reactions.

Use the following image to answer the following questions. A student was performing an experiment using two identical cups made of styrofoam. The student had Cup A holding water at 90℃ and Cup B holding water at 20℃. The student then put an Aluminum Bar into each cup that was touching the water. As time passed, the student noticed that the temperature of the water in Cup A and Cup B began to change. Question:
A. Predict what will happen to the temperature of the water in Cup A and Cup B after 1 hour has passed. (1 point)

B. Explain and give evidence for what type of heat transfer is occurring between the 2 cups.

Answers

In cup A, the temperature of the water will drop after 1 hour and the temperature of the aluminium will rise. In cup B, there will be no change in temperature of the water and the aluminium. The type of heat transfer taking is conduction.

When two bodies at different temperatures come into contact which other. Heat is transferred from the hotter body to the cooler body until thermal equilibrium is achieved between the two bodies. The temperature of the water decreases while that of the aluminium bar rises.

The aluminium bars were put into the two cups holding water at 90℃ and 20℃ respectively. Since the water in cup A is at a higher temperature than the aluminium, heat is transferred from the water to the aluminium bar until thermal equilibrium is achieved.

In cup B, there is no temperature difference between the water and aluminum hence no heat transfer occurs. Note that a mode of heat transfer that depends on temperature difference between two bodies in contact is conduction.

Learn more: https://brainly.com/question/22824409

Aeration basins increase the rate of bacteria working to break down the organic matter in wastewater. True or False?

Answers

Answer:

it is true

Explanation:

Aeration basins increase the rate of bacteria working to break down the organic matter in wastewater is true.

What is aeration basins?

Aeration basins is defined as the biomass consumes both oxygen and organic pollution, resulting in net microorganism growth and carbon dioxide release.

It can also be defined as the process of introducing air into wastewater in order to allow aerobic bio-degradation of pollutant components.

Aeration is frequently used to reduce the amount of carbon dioxide released by a treatment process.

It is the best methods for waste water treatment .

The main disadvantage of the aeration process is that too much oxygen is absorbed and the water becomes corrosive.

Thus, aeration basins increase the rate of bacteria working to break down the organic matter in wastewater is true.

To learn more about aeration basins, refer to the link below:

https://brainly.com/question/27784513

#SPJ5

nyatakan maksud bagi kation​

Answers

lanuage ? lanuage ? lanuage ?

A kation adalah ionik spesies dengan cas positif. Perkataan "cation" berasal dari perkataan Yunani "kato," yang bermaksud "turun." Kation mempunyai lebih banyak proton daripada elektron , memberikan muatan positif bersih.

what is the colour change when universal indicator is added to apple juice​

Answers

Answer:

red because its the flavor

Explanation:

It would turn yellow/yellow-green because apple juice is acidic. I don’t think it would turn red because apple juice is only moderately acidic, so not quite enough to be red.

What is the maximum numbers of orbitals in the p sublevel

Answers

Answer:

3

Explanation:

hope the picture helps you to understand :)

Order the following phases of matter from the phase with the most space between the
atoms to the least space between the atoms.

Answers

Answer:

Gas>Liquid>Solid

Explanation:In a gas state, molecules are allowed to move freelyand  rarely collide into nearby particles. In a liquid state, the molecules are contained within the liquid and occasionally bump into each other. now in a solid state the atoms arrange themselves into a structure that the atoms sit very tightly next to each other, sometimes vibarating

If you have 460 grams of H2o, how many molecules are present?

Answers

The answer is 1.537×10^25 molecules.

This question requires the use of avogadro’s number, which represents the number of formula units (could be atoms or molecules) in a mole. Avogadro’s number is 6.02214076×10^23 per mole. The first step is to determine how many moles of water is 460 grams of H2O. The molar mass of H2O is 18.02 grams per mole, and by dividing 460 grams of H2O by 18.02 grams per mole, you find that there’s are 25.53 moles of H2O present. We know from Avogadro’s number that there are 6.02214076×10^23 molecules per mole, so we multiply 25.53 by 6.02214076×10^23, which results in about 1.537×10^25 molecules.

Which pair of diseases could both be treated effectively with antibiotics
A. athletes foot and flu
B. cholera and salmonella
C. flu and scurvy
D. malaria and rickets
Imma mark the correct answer brainliest​

Answers

Answer:

cholera and salmonella

Explanation:

i believe so

Athletes foot and antibiotics
Other Questions
which bones make up the pectoral girdle? Select the correct answer. What did Romantic artists choose to express in their work in the early part of the nineteenth century? A. heroic Greek and Roman ideas B. religious and saintly images C. restraint and universal ideas D. personal and emotional reactions 5 out of 6 students baseball is their favorite sport what is the decimal equivalent for the number of students who choose baseball . opcin.La configuracin manual de parmetrosde red se realiza en la ventana de"propiedades" del adaptador ethernet,haciendo doble clic sobre la opcin:D NEED HELP!!!!! 11 POINTS!!!Troy has decided that he wants to be healthier. He has been doing a pretty good job sticking to the exercise routine that he designed. However, he tends to eat a lot of junk food. He assumes that if he is exercising, diet is not really that important. What is the BEST response to Troys assumption?A. If he eliminates junk food, he will be eating healthy.B. As long as he is not overweight, diet does not matter.C. If he exercises a lot then it does not matter what he eats.D. Exercise and attention to diet need to go together to build health.PLEASE NO LINKS what was the significance of hammurabis codification of laws? Analyze data table #1 and then create a line graph comparing speed and time. QUESTION 1Explain the legislative non-disadvantaged ruling for learning disabilities. Identify the answer choice that correctly completes the sentence below.An informative thesis statement should take a(n)stance.O broadO persuasiveO objectiveO analytical MP.7 USE STRUCTURE Helen uses 0.12 kilogram of nuts in each batch of granola that she makes . If she makes 2.5 batches, how many kilograms of nuts will she use The bowling scores for six people are 112, 114, 115, 120, 122, 290. What si the most appropriate measure of Center? a)1 sin x/1 + cos x, Jack and Danny both have a test average of 88 in Biology. Jack's standard deviation is 1.231 andDanny's standard deviation is 8.632. Write a sentence describing the differences in Jacks and Dannys test scores. PLEASE GIVE ME ANSWERS, GIVING OUT BRAINLIEST, DUE IN 40 MINUTES On the graph, two right triangles have the line as the hypotenuse. In this task, you will use these triangles to show that the slopebetween points E and A is the same as the slope between points A and C.Part AWhich angles of the triangles measure 90?Part BTo show that the other two angle measurements in each triangle are equal, you can use parallel lines cut by a transversal.Which two pairs of line segments formed by triangle sides are parallel, and what is the transversal for each pair?Part CWhich angle has the same measurement as angle DEA, and how do you know that the measurement is the same?Part DWhich angle has the same measurement as angle DAE and why (vertical, corresponding, alternate interior, or alternate exteriorangles)?Part EAre the two triangles congruent? Why or why not?Part FAre the two triangles similar? Why or why not?Part GWrite a fraction setting the vertical length of the larger triangle over its horizontal length. What does this fraction represent?Part HWrite a fraction setting the vertical length of the smaller triangle over its horizontal length. What does this fraction represent?Part ITo see if the slopes are the same, write an equation setting the two fractions equal to each other. Is this equation true? Why orwhy not? What does that mean about the slope between points E and A and the slope between the points A and C? pls help me I need this Simplify the ratio. 9.6 to 24 Why did Richard Nixon replace the gold standard with fiat currency in theearly 1970s? the full range of electromagnetic energy is called the An outfit is on sale for 25% off the original price. If the original price is $39.99, what is the sale price?