Answer:
Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts. Biotic factors include plants, animals, and other organisms. Abiotic factors include rocks, temperature, and humidity. Every factor in an ecosystem depends on every other factor, either directly or indirectly.
Which are three ways water reaches the atmosphere?
A. sublimation, condensation, transpiration
B. evaporation, radiation, and condensation
C. transpiration, evaporation, and sublimation
Answer:
C. Transpiration, evaporation, and sublimation.
Explanation:
thank you to the internet.
The individuality of an organism is
determined by the organism's
A) amino acids
B) DNA nucleotide sequence
C) nitrogenous bases
D) transfer RNA molecules
select all that are heterogeneous mixtures.
A) soil
B) steel
C) concrete
D) kool-aid
E) open can of soda
bacterial cells.
Which label belongs in the area marked animal?
nucleus
DNA
cell wall
ribosomes
Answer:
I believe it would be (nucleus)
what is tyndall effect
The scattering of the particles of the light in suspension and colloid is the Tyndall effect or scattering.
What are colloidal solutions?Colloidal and suspension are the types of solution that contains the mixture of the solute in the solvent. The colloidal solution includes the insoluble solute dispersed in the medium.
The light directed towards the colloidal solution gets scattered by the solute particles present in the solution and hence is used to prove true solutions apart from the colloidal and suspension.
Therefore, the Tyndall effect is the light scattering by colloidal solution.
Learn more about the Tyndall effect here:
https://brainly.com/question/14431922
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The shape of the methane molecule(ch4) is called
Answer:
Tetrahedral
Explanation:
Type the correct answer in the box. Express your answer to three significant figures. Iron(II) chloride and sodium carbonate react to make iron(II) carbonate and sodium chloride: FeCl2(aq) + Na2CO3(s) → FeCO3(s) + 2NaCl(aq). Given 1.24 liters of a 2.00 M solution of iron(II) chloride and unlimited sodium carbonate, how many grams of iron(II) carbonate can the reaction produce? The reaction can produce grams of iron(II) carbonate.
Answer:
Explanation:
To solve this problem we have to find the moles of iron(II) chloride that react. Using the chemical equation, we can kknow moles FeCl2 = Moles FeCO3. Thus, we can find the moles of FeCO3. Converting these moles to grams using its molar mass -Molar mass FeCO3: 115.854g/mol-
Moles FeCl2 = Moles FeCO3:
1.24L * (2.00mol / L) = 2.48 moles FeCl2
Mass FeCO3:
2.48mol * (115.854g / mol) =
The reaction can produce 287 grams of iron(II) carbonateAnswer:
its 287
Explanation:
i got it right on edm
Please help me!! And please no links!!!!
Write a clear scientific explanation of how and why the water ended up on the mirror and not in the tub. Be sure to include scientific vocabulary (including any phase changes that occurred and the role of kinetic energy).
Vocabulary words-
Condensation
Gas
Heat
Kinetic energy
Liquid
Steam
Vaporization
Water vapor
Answer:
The water was hot it turned into steam then turned to water vapor and the got attached to the glass and as the gas got attached the glass and it built up then became water again. As the vaporization was happening the gas was moving hence the energy building up.
Explanation:
Which of the following represents alpha decay?
Answer: b
Explanation: alpha decay or particle consist of two protons and two neutrons hence it is a helium nucleus.
An alpha particle [tex]\binom {4} {2}[/tex]He is produced in alpha decay reactions, while the parent nucleus' atomic number and mass number drop by 2 and 4 correspondingly.
Alpha decay:Alpha decay is a nuclear process whereby an unstable nuclear transforms into a different element by ejecting particles composed of two protons and two neutrons. The alpha particle also referred to as a helium nucleus, is the expelled unit of matter. Alpha particles have large masses and electrostatic attraction.An atomic number decreases by 2 and the atomic weight drops by 4 when a radioactive nucleus disintegrates by emitting [tex]\bold{\alpha}[/tex] particle.Therefore, the final answer is "Option B".
Find out more about the alpha decay here:
brainly.com/question/14081292
7. Which type of electromagnetic radiation can be dangerous to living things?
a. Radio waves
b. Visible light
c. Gamma rays
True or False?
When it is summer in the Northern Hemisphere, it is summer all around the word
Describe one way in which advances in space technology have improved our understanding of objects in space.
Answer:
Technology helps us in many ways.
Explanation:
We can now research the world even more effectively and at a higher level of sophistication thanks to technological advancements. Telescopes, on the other hand, enable us to peer into the far corners of the universe and detect very large objects such as stars. Electron microscope enable us to see smaller objects such as cells and organisms.
A balloon contains 25.0 L of helium gas at 177 kPa. What is the volume when the balloon rises to an altitude where the pressure is only 43.0 kPa ? Assume the temperature remains constant.
A.34.2 L
B.68.8 L
C.46.5 L
D.103 L
Is this correct??Pls help!!!
Answer:
C
Explanation:
Answer:
Yes, your answer is correct. B is correct :3
For the combustion of acetaldehyde, CH2CHO, there is 42L at STP and 79g of Oz. How much water is produced?
What product is formed when sodium and chlorine undergo a synthesis reaction? sodium chlorite
sodium chlorate
sodium and chloride
sodium chloride
2.91 moles of aluminum are how many grams(with work)
Mention any two uses of oxygen gas.
Answer:
steel, plastics
Explanation:Hope it helps!
Find the molality of a solution of 58.5 g NaCl dissolved in 0.556 kg of water
Answer:lmk
Explanation:
write in the chart which molecule is the acid,base, conjugate base,conjugate acid from the equation and watching the H+ movement
1 H2CO3 + H2O--- H3O+ +HCO3-
2 H3PO4 + H2O--- H2PO- +H3O+
3. HCO3- + H2O---H2CO3 +OH-
4 HNO3 +H2O---NO3- +H3O+
Answer:
When H2O acts as a base, it gains one H, which forms its conjugate acid, H30. ... Write the formula for the conjugate base for each of the following acids: a. ... H3PO4(aq) + H2O(l) 7 H2PO4 (aq) + H3O+(aq) ... CO32-(aq) + H2O(1) 2 HCO3 (aq) + OH(aq) ... balanced equation for the reaction of the ammonium ion with water.
give me the type of reactions ___ CuCO3 → ___ CuO + ___ CO2
How many grams would be in 1.752 x10^26 formula units of Ca(No3)2
Answer:
47730 grams.
Explanation:
First we convert 1.752x10²⁶ formula units of Ca(NO₃)₂ into moles, using Avogadro's number:
1.752x10²⁶ formula units ÷ 6.023x10²³ formula units/mol = 290.88 molThen we convert 290.88 moles of Ca(NO₃)₂ into grams, using the molar mass of Ca(NO₃)₂:
290.88 mol * 164.088 g/mol = 47730 gHow much energy is required to raise the temperature of a 300.0
gram block of lead from 22.3°C to 59.9°C? The specific heat of lead is
0.129 J/gºC.
Answer:
Q = 1455.12 Joules.
Explanation:
Given the following data;
Mass = 300 grams
Initial temperature = 22.3
Final temperature = 59.9°C
Specific heat capacity = 0.129 J/gºC.
To find the quantity of energy;
[tex] Q = mcdt[/tex]
Where,
Q represents the heat capacity.
m represents the mass of an object.
c represents the specific heat capacity of water.
dt represents the change in temperature.
dt represents the change in temperature.
dt = T2 - T1
dt = 59.9 - 22.3
dt = 37.6°C
Substituting the values into the equation, we have;
[tex] Q = 300*0.129*37.6 [/tex]
Q = 1455.12 Joules.
At a high concentration do you have more or less particles per unit volume
Answer:
More particles per unit volume
Explanation:
Concentration means the amount of solute in a solution. Now, the amount of solute also means the number of particles of solute present in a solution.
Hence, when we use the term "high concentration", we imply that the amount of solute present or the number of particles present in a solution is high.
Thus, at high concentration, there are more solute particles than solvent particles in a solution.
If 200 mL of a gas at 27 °C is cooled to -33 °C at a constant pressure, the volume will be
Answer:
V2 = 159.48 mL
Explanation:
Given the following data;
Initial volume = 200 mL
Initial temperature = 28°C
Final temperature = -33°C
To find the final volume, V2, we would use Charles law;
First of all, we would convert the temperature in Celsius to Kelvin.
Mathematically, it is given by the formula;
Kelvin = 273 + C
Substituting into the equation, we have;
Initial temperature, T1:
Kelvin = 273 + 28
Kelvin = 301K
Initial temperature, T1:
Kelvin = 273 - 33
Kelvin = 240K
To find new volume V2, we would use Charles' law.
Charles states that when the pressure of an ideal gas is kept constant, the volume of the gas is directly proportional to the absolute temperature of the gas.
Mathematically, Charles is given by;
[tex] VT = K[/tex]
[tex] \frac{V_{1}}{T_{1}} = \frac{V_{2}}{T_{2}}[/tex]
Where;
V1 and V2 represents the initial and final volumes respectively.
T1 and T2 represents the initial and final temperatures respectively.
[tex] \frac{V1}{T1} = \frac{V2}{T2}[/tex]
Making V2 as the subject formula, we have;
[tex] V_{2}= \frac{V1}{T1} * T_{2}[/tex]
[tex] V_{2}= \frac{200}{301} * 240[/tex]
[tex] V_{2}= 0.6645 * 240 [/tex]
V2 = 159.48 mL
what are binory compounds
Answer:
You meant binary compounds ryt?
Then,
Binary compounds are chemical compounds comprising of two distinct elements
what is chemical bonding
Answer:
In simple terms it is when two chemicals bond with each other
Explanation:
For more detailed explanation here's your answer:-
A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds. It has Electrostatic force between the two molecules. It can be either positive or negative ionsPLEASE HELP.
What does the atomic number of an element tell us?
A) the number of neutrons in an atom of an element
B) the number of protons in an atom of an element
C) the number of protons, electrons, and neutrons in an element
what are the three method used to treat water ?
Answer:
The three methods used to treat water are
Filtration SedimentationDistillationExplanation:
These methods used include physical processes, biological processes such as slow sand filters or biologically active carbon; chemical processes such as flocculation and chlorination; and the use of electromagnetic radiation such as ultraviolet light.
I really need help please someone help me?!.
Those are all the questions.
Answer:
question two is most likely you can describe the shape as a twisted ladder, thats what I learned in school.
Explanation:
YW