8
This wasp was viewed under a microscope with a 40x objective lens and a 10x
eyepiece lens.
What was the total magnification
help its for my assessment
25 points
Answers
Answer:
400x
Explanation:
magnification=magnification of objective lens*magnification of eyepiece lens
m=40*10
m=400x
Related Questions
What is the molarity of a solution in which 35 mole of AgNO3 is dissolved in 5 L of solution?
Answers
Answer:
23
Explanation:
Answer:
0.118m
Explanation:
Balance the folowing equation.
S + 02
ws
SO:
Answers
Answer:
s+o2=so2
Explanation:
i hope it will help u
Changes in thermal energy provide evidence that a chemical reaction
has occurred. Which of the following BEST describes a chemical reaction
in which energy is released?
Select one:
Exothermic reaction.
Reversible reaction
Physical reaction
Endothermic reaction.
Answers
Answer:
Exothermic reaction
Explanation:
Exothermic reaction is a reaction in which energy is evolved from the reaction to the surroundings
Which of the following might be included in a chemical
reaction?
a
Molecules
blons
Pure elements
d
All of the above
Answers
Answer:
b) ions
Explanation:
Answer: all of the above
Explanation:
When a gas is heated, the gas particles have more kinetic energy. Complete the following sentence: This means they move about more and have more ______ with the sides of the container. This increases the pressure.
Answers
Answer:
Contact
Explanation:
As the speed of the particles increases, they move around more, which means they hit the sides of the container more.
Can you help me please....
Answers
sorry the pic is blocked
Which of the following diagrams represents a single
replacement reaction?
Answers
Explanation:
i think the answer is....b
The diagram that represents single replacement reaction is:
b.
Single replacement reaction:This reaction is also known as displacement reaction. It is a reaction in which one element is substituted for another element in a compound. When a replacement reaction occurs, a new aqueous compound and a different pure element will be generated as products. For example:
[tex]2HCl(aq)+Zn(s)--->ZnCl_2(aq)+H_2(g)[/tex]
Thus, option b is correct.
Find more information about displacement reaction here:
brainly.com/question/20690229
Balance the equation Ag2O ->Ag + O2
Answers
Answer:
For balancing this equation
we need to put
Ag2O. = 2
Ag = 4
O2 = 1
Hope it will help
The balanced chemical equation of decomposition of silver oxide is 2 Ag₂O -> 4 Ag + O₂.
What is chemical equation?Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .
The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.
Learn more about chemical equation,here:
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Which row gives the correct order of reactivity of the four metals?
(look at the attached photo)
Answers
Answer:
D
Explanation:
Answer:
C) gold - zinc - magnesium - lithium
balance the following equation FeC²+Cl². FeCl³
Answers
Answer:
this equation is not proper see that where is the reactant.
Explanation:
give give a proper question and I will
if fecl2 + c2 gives a fecl3 where does the carbon compound go
Answer:
2FeCl2 + Cl2 → 2FeCl3
Explanation:
What is the charge on an electron?
-1
0
+1
+2
Answers
Answer:
he charge on an electron is -1. Explanation : Electron is a subatomic particle whose symbol is . The electrical charge on an electron is negative. The electron was discovered by the J.J. Thomson. The mass of an electron is . The charge on electron and proton is equal but opposite. Neutron has zero charge and proton has +1 charge.
Explanation:
1. MnO₂ is an example of what type of bond?
a covalent
b ionic
c polyatomic ion
2. Cl is an example of a cation, anion, or polyatomic ion
a polyatomic ion
b anion
c cation
Answers
Answer:
1. covalent
2. polyatomic ion
Explanation:
:)
Answer:
1) b
2)c
Explanation:
A prokaryotic cell does not have
А
a cell membrane.
B
genetic material.
C
a nucleus.
D
flagella.
Answers
Answer:
D
Explanation:
what is the mass of 0.75 mol of hydrogen sulfide
Answers
Answer:
25.56066
Explanation:
hope this helps !!!!!!! and sorry if it doesn't help
I gotta pick 4 last question to pass :,) pls help:>
whoever answers first will be marked brainliest unu
Answers
Answer:
Explanation:
heat up the solvent
increse the pressurre of the mixture
add more solute
agitate
What experiment did J. J. Thomson do?
A. He sent a cathode ray between electrically charged metal plates.
B. He suspended charged oil drops in a chamber.
C. He hit metal plates with light.
D. He shot alpha particles through gold foil
Answers
Answer:
A. He sent a cathode ray between electrically charged metal plates
Which of the following is the ground state electrons configuration of the F ion
Answers
Answer:
That leaves us with: 1s2 2s2 2p6 And that is the electron configuration for F- , the Fluoride ion.
Explanation:
plz give brainliest
are soft pretzels, (like the auntie annes ones you get at the mall) made through the process of convection, conduction or radiation? thank youuu so much if you can answer ur the best
Answers
Answer:
I believe it's radiation, but please correct me if I'm wrong.
Explanation: Have a good day !
1. Which of the following statements is true about seeds?
a. Every plant produces seeds.
c. All seeds are good to eat.
b. All fruits contain many of seeds. d. all seeds has young plant, stored food and a seed coat.
2. Flowers cannot usually produce seeds unless
a. they are visited by insects.
c. they produce nectar.
b. they are on plants growing in good soil. d. the right pollen is placed on their stigmas.
3. Fertilization take place before a seed develops. Which statement describes when fertilization
occurs?
a pollen grain falls on a pistil
c. sperm in a pollen joins with an egg cell in an ovule
b. a pollen tube enters an ovary
d. an ovary becomes a fruit
4. Which of the following is NOT a factor needed by plants?
a. fire
b. nutrients
Please pasagot po ng tanong ko please
c. sunlight
d. water
5. Which is the reproduction in plants where the male and female parts of the flower are involved?
a. asexual
b. sexual
c. rhizome
d. pollination
Answers
Answer:
1 ans: d. all seeds has young plant, stored food and a seed coat.
2 ans: d. the right pollen is placed on their stigmas
3 ans: a. pollen grain falls on a pistil
4 ans: a. fire
5 ans: b. sexual
Hope it helps,
Please mark me as brainliest
Thank you...
The empirical formulae of a compound is CH2O. The relative formula mass for the molecular formula is 180. What is the molecular formula?
Answers
Answer:
ch20 is the empirical formula for glucose , c6h1206 is the molecular formula .
In order to become a chemically stable ion, a neutral atom of sodium will _______.
A. lose one electron
B. lose two electrons
C. gain two electrons
D. gain one electron
Answers
Answer:
D. gain one electron
Explanation:
In order to become a chemically stable ion, a neutral atom of sodium will gain one electron. Therefore, the correct option is option D.
What is chemical stability?Chemical stability in chemistry refers to a chemical system's thermodynamic stability. When a system reaches its lowest energy state or in thermodynamic equilibrium with its surroundings, thermodynamic stability occurs.
It could be a spontaneous process when the total number of atoms or molecules in a given shape is conserved despite the fact that individual particles or atoms change forms. In order to become a chemically stable ion, a neutral atom of sodium will gain one electron.
Therefore, the correct option is option D.
To know more about chemical stability, here:
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A mole of carbon has the same number of atoms as a mole of beryllium.
O True
False
Answers
Answer:
False.
Explanation:
Carbon = 12
Beryllium = 9
good luck, i hope this helps :)
Two different gases are stored inseparate closed containers. If both gases have a temperature of 50°C, which
statement is true?
Answers
Answer:
Explanation:
there should be more showing than telling
well i just had a major PTSD attack how is everyone i need to think about something else
Answers
Answer:
Oh so so sorry about that. and thanks for caring for us. anyway we are good wbu
Explanation:
im good. i just ate applesauce lol :)
2Na(s) + Cl2(g) → 2NaCl(s)
Which of the following choices shows the correct Lewis electron-dot diagram for a molecule of chlorine, Cl2?
Answers
Answer: 2!
Explanation:
The best lewis structure for [tex]Cl_2[/tex] is in option 2.
Na or sodium is the cation in the reactant.
Cl or chlorine is the anion in the reactant side.
NaCl is the product of the reaction.
Lewis Structure is a very simplified representation of the valence shell electrons in a molecule. It is used to show how the electrons are arranged around individual atoms in a molecule. Electrons are shown as "dots" or for bonding electrons as a line between the two atoms.
Chlorine is a group VIIA element in the periodic table and contains seven electrons in its last shell.
Valence electrons are given by chlorine atoms = [tex]7\times2=14[/tex]
Total valence electrons = 14
So, each of Cl is surrounded by three pairs of dots, connected by a single line. So, the best lewis structure for [tex]Cl_2[/tex] is in option 2.
To know more about:-
brainly.com/question/20300458
What is the noble gas configuration for zirconium?
Answers
Answer:
[Kr] 4d² 5s² option b will be correct answer
Which electromagnetic wave has the longest
wavelength? Describe the energy level and
frequency of this wave.
Answers
Answer:
radio waves
Explanation:
which has the longest wavelength and lowest frequency and energy. Ultraviolet light (UV) is divided into three regions: UV A, wavelength = 400 - 320 nm UV B, wavelength = 320 - 280 nm
NaCl + NH3 + CO2 + H20 NaHCO3 + NH4CI
Which Lewis electron-dot diagram correctly represents the reactant containing nitrogen in the equation?
Answers
That leaves us with drawing the structure of NH4Cl.
This was a tough one for me to find, as I kept drawing Ammonia instead and couldnt figure out how to fit in the extra Hydrogen and Chlorine. Luckily, this Y!A answer explains it, its due to a hydrogen bond
Option (1) represents the Lewis electron-dot diagram correctly containing nitrogen in the equation.
Lewis Structure is a very simplified representation of the valence shell electrons in a molecule. It is used to show how the electrons are arranged around individual atoms in a molecule. Electrons are shown as "dots" or for bonding electrons as a line between the two atoms.
Valence electrons are given by hydrogen atoms = [tex]1\times3=3[/tex]
Valence electrons are given by nitrogen atom = [tex]5\times1=5[/tex]
Total valence electrons = 3 + 5 = 8
So, the calculation above is shown only the first option. So, (1) Lewis electron-dot diagram correctly represents the reactant containing nitrogen in the equation.
To know more about:-
brainly.com/question/20300458
Electrons can occur only in specific
Answers
Answer: Electrons have wavelike motion and are restricted to certain energy states associated with specific wavelengths.
What is the main process by which water moves from land to the atmosphere?
Answers
Answer:
isn't that evaporation if not you can just delete my answer-
Explanation: