Answer:
1.505746561978472
Explanation:
During an experiment a student placed a alible item in the gap of the circuit below the lightbulb turned on when the item was placed in the device that item cannot be classified as a—
Answer:
chicken
Explanation:
Can someone pls pls help ASAP!!
the manager of a bookstore uses the equation s = p - 3.5 to find the price a student pays for books
ill mark brainliest
Answer:
Third one
Explanation:
If the pressure of a gas changes, but the number of moles and volume remain constant, which
of the following values must also change?
Answer:
Pressure
Explanation:
If you hear a weather report say that a low pressure system is coming in, what kind of
weather can you expect?
A
wind
B
polluted air
precipitation
D
heat
Answer:
It would be A
Explanation:
Answer:
A - wind
Explanation:
A low pressure system is a whirling mass of warm, moist air that generally brings stormy weather with strong winds. When viewed from above, winds spiral into a low-pressure center in a counterclockwise rotation in the Northern Hemisphere.
PLEASE HELP ASAP
which is a primary consumer?
Picture shown above
zooplankton cod and krill
What is the pH and pOH of a 2.34 x 10^-5 NaOH solution?
Answer:
pOH = 4.63
pH = 9.37
Explanation:
Because NaOH is a strong base, it will completely dissociate, which means you can find pOH by taking the negative log of the concentration of hydroxide ions: pOH = -log(OH) = -log(2.34 x 10⁻⁵) = 4.630784143
To find pH use 14.00 = pH + pOH
pH = 14.00 - 4.630784143 = 9.369215857
What is the oxidation number of each nitrogen atom (N) in calcium nitrate (Ca(NO3)2)? (3
points)
+2
+3
+5
+6
Calculate the average reaction rate. PLZ HELP TY!
Answer:
2 sec
Explanation:
A student observed pond water through a field microscope. He saw several organisms moving around in the water. His teacher explained that bacteria are too small to be seen with the limited magnification of the field microscope. The unicellular organisms the student observed were most likely from the kingdom -
Answer:
Kingdom Monera.
Explanation:
The unicellular organisms the student observed were most likely from the Kingdom Monera because in this kingdom, unicellular organisms are included which are prokaryotic in nature. Monera is a Greek word means "single" is a kingdom that contains organisms that are made up of one cell and having a prokaryotic cell means having no nuclear membrane and we know that bacteria is also a unicellular organism and prokaryotic in nature.
During the process of photosynthesis, plants use energy from the Sun to transform carbon dioxide from the air into
OA. soil and molecules of sugar.
OB. protein and minerals,
OC.
oxygen gas and molecules of sugar
OD
minerals and liquid carbon dioxide.
OA soil and molecules of suger
are insert gases used in fluorescent
URGENT PLEASE HELP
A functional group is a specific arrangement of atoms in an organic compound that is capable of characteristic reactions
Is this true of false
PLEASE HELPP
Are mossed and ferns climax community or pioneer species
Answer:
Pioneer species I believe.
Explanation:
A certain automobile contains 4 tires, 2 headlights, 1 steering wheel,
and 6 spark plugs. How many of each part will be required to build 17 of
these cars?
Answer:
143 parts I think probably not
Which solution has the highest boiling point?
1.0 M KNO3
2.0 M KNO3
1.0 M Ca(NO3)2
2.0 M Ca(NO3)2
The highest boiling point has been of 2.0 M [tex]\rm Ca(NO_3)_2[/tex]. Thus, option D is correct.
The boiling point has been the temperature at which the liquid starts to be converted to the gases. The boiling point has been higher when the inter-molecular forces between the molecules are higher.
With high inter-molecular forces, there has been higher amount of energy required to break the bonds, and change the state. The boiling point has also been dependent on the concentration, as higher the molecules present, there has been higher bonds, and more energy is required.
The Ca molecules has charge +2, while K has +1, this states, the stronger bonding of Ca with nitrate as compared to the K. Thus, calcium nitrate solution of 2 M has requires more energy, and thus have the highest boiling point.
The highest boiling point has been of 2.0 M [tex]\rm Ca(NO_3)_2[/tex]. Thus, option D is correct.
For more information about boiling point, refer to the link:
https://brainly.com/question/2153588
PLEASE HELPPPPPP?????
Which of the selections completes the following nuclear reaction?
Answer:
najsbsbsmnshzhskwjzhhsbsbsbsbzbbsnzn
hsnznzkskzjbxbs
gasjhsjsbabakjahajakqjahsvhwksbxbwhsjkxjsjshshshshshhshshshsjshxhsbsbsbsbhshshdbdbbdbdbdhbsjajshshshsjsksksjsjsjjsbsksshshssgsgsbsbvsgsbsjsksjsjxjxjksksjgshkajahsgshsjsjabavsvshwhsggehsjsjsjdnsjajs
Answer:
uhh the Neutron i guess lol you didn't give any choices or explanation
Explanation:
What volume of water is required to prepare 1.50M solution with 2.55 moles of NaCl?
Answer:
?
Explanation:
Molarity is the molar concentration of the moles in a solution. The volume of water required for preparing 1.50 M NaCl solution is 1.7 L.
What is volume?Volume is the number of moles of solute present in a molar concentration of a solution.
Molar concentration is given as,
[tex]\rm Molarity (M) = \dfrac{\text{moles of solute}}{\text{litres of solution}}[/tex]
Given,
Molarity of sodium chloride = 1.50 M
Number of moles of sodium chloride = 2.55 mol
Substituting values in the above equation the volume is calculated as:
[tex]\begin{aligned}\rm Volume &=\rm \dfrac{moles}{molarity}\\\\&= \dfrac{2.55}{1.50}\\\\&= 1.7 \;\rm L\end{aligned}[/tex]
Therefore, 1.7 L of water is required.
Learn more about molarity and volume here:
https://brainly.com/question/892480
Introduction: The (fictitious) town of Solutionville is trying to figure out a way to replace their current coal-fired power plants with cleaner and more sustainable energy sources. At a recent town meeting, it was proposed that the town build a nuclear power plant to replace coal as the community’s main source of energy for electricity.
Your Challenge: As a voting citizen of Solutionville, you must decide whether or not you support building a nuclear power plant to provide energy and electricity to homes and businesses in the community. This means carefully weighing the benefits and disadvantages of nuclear power.
1. Conduct research to learn more about nuclear power, and keep track of what you learn on slide#4 and/or in your notebook.
2. Make sure to write down the sources you get your information from, and be ready to defend the sources as credible.
3. Using the information you find, fill in the Benefits and Drawbacks Chart on slide #5 3. Be prepared to defend the information on your chart with evidence from your sources.
4. Analyze your findings, then find a partner and compare notes.
5. Decide whether or not you are in favor of or opposed to nuclear energy.
the questions involve other things that are not presented in the question, it is hard to answer this because of that sorry
_______ have cells that are all dried out.
Explanation: the answer plant seeds
not skin
An empty beaker weighs 20g and when filled with
Kensene weighs 60g. If the Volume of the kerosene is 15cm2 calculate
the density of the kerosene
Answer: The density of kerosene is [tex]2.7g/cm^3[/tex]
Explanation:
Density is defined as the mass contained per unit volume.
[tex]Density=\frac{mass}{Volume}[/tex]
Given : Mass of kerosene = mass of beaker with kerosene - mass of empty beaker = 60 g - 20 g = 40 g
Volume of kersone = [tex]15cm^3[/tex]
Putting in the values we get:
[tex]Density=\frac{40g}{15cm^3}[/tex]
[tex]Density=2.7g/cm^3[/tex]
Thus the density of kerosene is [tex]2.7g/cm^3[/tex]
what is electronic configuration
True/False: Sometimes people have to make modify or make adjustments to the land so that we can use it to farm.
Consider the reaction below.
HI + H2O → H30++
Which is an acid-conjugate base pair?
O HI and H20
O H2O and Hž0+
OH30+ and I
O HI and
Answer:
HI and I-
Explanation:
Hello there!
In this case, according to the acid ionization of hydroiodic acid:
[tex]HI+H_2O\rightarrow I^-+H_3O^+[/tex]
Now, since the acid, HI, results in the conjugate base, I- and the base, H2O in the conjugate acid, H3O+, it is correct to assert that the acid-conjugate base pair is HI and I-
Best regards!
The acid-conjugate base pair in the reaction above is HI and I-. Details about conjugate base can be found below.
What is a conjugate base?A conjugate base is the substance formed when an acid loses or donates its proton or hydrogen ion.
According to this question, the following reaction is given:
HI + H2O → H30+ + I-
The acid in this reaction is HI while the conjugate base is I-.
Learn more about conjugate base at: https://brainly.com/question/12883745
#SPJ5
Calculate the mass of magnesium chloride you would need to dissolve in 4dm of water to
make a 0.9g/dm solution.
Question: Calculate the mass of magnesium chloride you would need to dissolve in 4dm³ of water to
make a 0.9g/dm³ solution.
Answer:
3.6 g
Explanation:
From the question,
Density of magnesium (D) = Mass of magnesium (m)/Volume of magnesium(V)
D = m/V............... Equation 1
Make m the subject of the equation
m = D×V............. Equation 2
Given: D = 0.9 g/dm³, v = 4 dm³
Substitute these values into equation 2
m = 0.9×4
m = 3.6 g.
Hence the mass of magnesium is 3.6 g.
PLEASE HURRY I'M TIMED Where does the flow of energy begin in every ecosystem?
the consumers
the producers
the sun
the herbivores
What are 2 diseases caused by coronaviruses?
Short Answer/Essay
Note: Your teacher will grade your responses to questions 19 and 20 to ensure you receive proper credit for your answers.
What is global warming? What can people do to reduce global warming?
Answer:
lol global warming is the gradual increase in the temperature of the earth and its atmosphere. this is do to the greenhouse effect caused by increased levels of carbon dioxide.
Explanation:
common knowledge
4 InS03 + 3 RSC2 --> 2 In Sc3+3 RS04
Using the balanced equation, if you had 4.3 moles of InSoz, what volume would RS04 occupy at
STP?
Answer:
Explanation: