Answers
Answer:
Sunlight
Explanation:
A producer include green plants, small shrubs, fruit, phytoplankton, and algae. None are which are "sunlight".
Related Questions
1. Calculate the molar mass of sucrose (C12 H11 O22)?
Answers
Answer:
=342g
Explanation:
atomic mass of C = 12g
atomic mass of H = 1g
atomic mass of O = 16g
Solution;
C12 H22 O11
= 12 (12) + 22 (1) + 11(16)
= 144+ 22 + 176
= 342g
Which of the following do sound waves generally travel most
quickly through?
Answers
Answer:
Sound waves travel faster through solids, because they can better transmit the soundwaves to your eardrum faster since they are closer together than air.
Answer:
Sound waves generally travel most quickly through gases.. Sounds can travel through air and water but not through solids. Sound waves travel hope this helps!
What other organisms feed on the same material?
Answers
Answer:
A heterotroph is an organism that eats other plants or animals for energy and nutrients. The term stems from the Greek words hetero for “other” and trophe for “nourishment.”
Define reaction rate.
a. An unstable arrangement of atoms that forms momentarily at the peak of the activation-energy
barrier
b. The minimum energy that colliding particles must have in order to react
c. A measure of speed of any change that occurs within an interval of time
d. Atoms, ions, and molecules can react to form products when they collide with one another,
provided that the colliding particles have enough kinetic energy.
Answers
Answer:
B
Explanation:
Answer:
B
Explanation:
Reaction rate can be defined as :
the minimum energy that colliding particles must have in order to react
13) A gas has an initial state of 500 K, 6.5 atm, and occupies 8.0 L. What will the final volume be if the pressure is kept constant and the temperature is decreased to 150 K?
Answers
1) Students are interested in quickly completing their lab experiment before going to lunch. What are 4
ways to increase the reaction rate below?
Zn() + 2HCl(aq)
Hz(s) + ZnCl2(g) + heat
Answers
The reaction rate can be increased by increasing the temperature, increasing the concentration of reactants, using catalysts, or increasing the surface area of the reactants.
Factors affecting rates of reactionsThe factors affecting the rate of reactions include:
Temperatureconcentration of reactantsAddition of catalystsSurface area of reactantsEach factor affects the rate of reaction as follows:
Increased temperature increases the rate of reactionIncreasing the concentration of reactants increases the rate of reactionAdding catalysts increases the rate of reactionsIncreasing the surface area of reactants increases the rate of reactions.More on factors affecting rates of reactions can be found here: https://brainly.com/question/14817541
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What environment will produce the largest crystal sizes?
Construct a short Essay (Make sure you include information about Temp, Pressure, amount of dissolved solids, & cooling time)
Is there support for your Claim?
Answers
Answer:
one factor is the speed at which crystals are formed
explanation:crystals that are formed near or on the surface tend to crystalize faster and therefore are usually smaller crystals deeper in the crust tend to crystalize slower and therefore are larger
What is the reciprocal of cell constant?
Answers
Explanation:
resistivity is the reciprocal of cell constant
Select the correct structure that
corresponds to the name.
2,2,3-trichloro-3-fluorohexane
A.
B.
CI
CI
CI
CI
F
חד
CI
C. both
Answers
Answer:
C
Explanation:its right
The correct structure that corresponds to the name 2,2,3-trichloro-3-fluorohexane is both. Thus option C is correct.
What is chemical structure?Chemical structure is defined as the physical configuration of atoms within a molecule. The molecular geometry of the molecule is determined by its chemical structure. By illustrating how the atoms and chemical bonds are arranged in space within the molecule, chemical structure can be used to establish the molecular geometry of a product. Chemists can now see a crucial visual depiction of a chemical formula thanks to this.
2,2,3-trichloro-3-fluorohexane structure given is both are correct as one of the structure is trans form and the other is cis form of the structure. Option A is trans form while option B is cis form of structure.
Thus, the correct structure that corresponds to the name 2,2,3-trichloro-3-fluorohexane is both. Thus option C is correct.
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11. How many molecules of oxygen will be consumed when 33.6 liters of water is produced?
Answers
Answer:
67.2 litres of oxygen will be consumed
Explanation:
Step 1 : Write the balanced chemical equation:
2H₂ + O₂ → 2H₂O
Step 2: find the ratio of O₂ : H₂O
O₂ : H₂O
1 : 2
67.2 : 33.6
Thus, 67.2 litres of oxygen will be consumed
What is a neutralization reaction?
Answers
Besides drinking water, how is water helpful for life and nature?
Answers
Answer:
It keeps us alive, helps us grow plants, helps plants thrive, gives us food, helps keep our animals and crops healthy, cleans us, and so much more
Explanation:
How many molecules ?
Answers
Answer:
42 millions of single cells
If you had 1 mol of Cr7(PO4)3 how many moles of Cr would there be?
Answers
What is the specific heat of a substance if a mass of 10.0 kg increases in temperature from 10.0°c to 70.0°c when 2,520 j of heat is applied? use q equals m c subscript p delta t.. 0.00420 j/(gi°c) 0.00661 j/(gi°c) 238 j/(gi°c) 252 j/(gi°c)
Answers
Answer:
0.00420
Explanation:
The equation is Q=mc(T(final)-T(initial), where c is the specific heat, Q is heat supplied, m is mass, T(final) is final temperature and T(initial) is initial temperature (you'll see this written as delta T, which means change in temperature).
2520 = Q
m = 10.0kg; answer choices are in g, not kg, so multiply by 1000 to get m in g; m = 10000 g
Plug in the values you have and solve for c.
2520=(10000)(c)(70-10)
2520=600000c
c=0.0042 j/(gc)
Answer:
4.2 j/kg-C = .0042 j / (g-C)
Explanation:
Specific heat units are j / kg-C
2520 J / [ (10 kg)(70-10 C)] = 4.2 j / kg-C
A.
Select the correct structure that
corresponds to the name.
heptane
B.
CH3(CH2)4CH3
Answers
Answer:
Only A., the stick structure with no branches and five vertices between the two endpoints.
Explanation:
An alkane is a saturated hydrocarbon compound with no branches- just a series of carbon atoms connected with [tex]{\rm C}-{\rm C}[/tex] single bonds. Heptane is the name for an alkane with [tex]7[/tex] carbon atoms (the prefix "[tex]\verb!hept-![/tex]" means "seven".)
Notice that there are only [tex]6[/tex] carbon atoms in the alkane with the condensed structure formula [tex]{\rm CH_{3}}({\rm CH_{2})_{4}{\rm CH_{3}}[/tex]. The name for that structure would be hexane, not heptane.
In general, the condensed structure formula of an alkane with [tex]n[/tex] carbon atoms ([tex]n > 2[/tex]) is [tex]{\rm CH_{3}}({\rm CH_{2}})_{n-2} {\rm CH_{3}}[/tex]. The correct condensed structure formula for heptane ([tex]n = 7[/tex]) would be [tex]{\rm CH_{3}}({\rm CH_{2}})_{5} {\rm CH_{3}}[/tex].
The structure in choice A is represented as a line-angle formula. As long as no letter is present in the formula, each vertex in the line-angle formula (including the endpoints) represents a carbon atom. Hence, the line-angle formula in choice A would represent a hydrocarbon with [tex]7[/tex] carbon atoms.
A single line denotes a single bond between atoms. All [tex]7[/tex] carbon atoms in this structure are thus joined in a line with [tex]{\rm C}-{\rm C}[/tex] single bonds. Hence, this structure denotes an alkane with [tex]7[/tex] carbon atoms- heptane.
solubility constant 5
For the dissolving of CaF2, the equilibrium constant expression, Ksp, is
Select one:
O Ksp = [Ca2+] [F]²
Ksp = [Ca2+] [F] / [CaF₂]
O Ksp = [Ca²+] [F]
O
Ksp = [Ca2+] [F]²/[CaF₂]
O
Ksp = [CaF₂] / ([Ca²+] [F] ²)
Answers
The Ksp of the compound CaF2 is given as; Ksp = [Ca2+] [F]²
What is solubility product?The term solubility product has to do with the extent to which a substance dissolves in solution.
For the compound CaF2, we have; CaF2(s) ⇆Ca^2+(aq) + 2F^-(aq). Hence, the Ksp of the solution is Ksp = [Ca2+] [F]²
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(d) Explain the trend in the boiling points in the table above.
Answers
Answer:
The BP increases in temperature as you move down the halogen group ( group 7)
Answer:
The trend of boiling points in the the table vary according to the size of the elements atom, if an element has a larger size it will need greater intermolecular forces and heat to break the strong bonds. Therefore Bromine has a larger size followed by chlorine and later fluorine, and this has shown in their boiling points
What happens when two substances of different temperatures come in contact with each other?
Answers
temperatures come into contact, the
substance that is at higher temperature will transfer energy, in the form of heat, to the substance that is at lower temperature, until their temperatures get equal.
Answer:
The hotter one loses heat and the cooler one gains heat until they become equal in temperature.
What is the IUPAC name of the compound N2O?
Answers
Answer:
Nitrous Oxide
Explanation:
The provided map shows the location of an earthquake under the ocean.
The data on the map would best support a prediction of which of the following events?
O A tsunami in Sri Lanka
O An earthquake in South Africa
O A hurricane in Somalia
O Flash floods in Madagascar
Answers
Answer:
Option 1
Explanation:
An underwater earthquake will most likely cause a tsunami. Sri Lanka lies very close to the source of the earthquake, hence the answer is :
A tsunami in Sri LankaWrite two equations for the neutralization of nitric acid, HNO, with magnesium hydroxide, Mg(OH). In the first equation, include the spectator ions. In the second, do not include the spectator ions.
Answers
Answer:
where the formula
Explanation:
Answer:
Explanation:
Your answer should include the total ionic equation (for the equation with spectator ions) and net ionic equation (for equation that does not include spectator ion).
ignore the top equation labelled molecular equation
Disclaimer: the solid MgOH2 works only for Mg(OH)2 in solid phase.
If we assume the Mg(OH)2 is aqueous, then I have attached a second picture (replace Ca with Mg), the boxed equations are your answers.
An alpha particle is made up of
O one proton and one neutron
Otwo protons and two neutrons
Oone electron
Otwo electrons
Answers
Answer: two protons and two neutrons
Explanation:
An alpha particle is just a helium-4 isotope, which obviously has 2 protons and 2 neutrons.
A process in which a large nucleus splits into two or more parts is called ?
(A) nuclear fission
An alpha particle is made up of _____.
(C) two protons and two neutrons
Which statement best describes the type of radioactive decay shown in the model?
(D) The model shows alpha decay, which is a type of nuclear fission.
Is beta decay a form of nuclear fission?
Responses
(A) No, it is not because the mass number does not change.
Which statement correctly classifies gamma emission?
(D) Gamma emission is a type of radioactive decay, but it is not a fission reaction.
Explanation:i just did the quick check, hope this helps UwU
If the pH of a solution is 8.45, what is the concentration of the OH-?
Answers
Answer:
How do you find the concentration of OH in a solution?
The hydroxide ion concentration can be found from the pOH by the reverse mathematical operation employed to find the pOH. [OH-] = 10-pOH or [OH-] = antilog ( - pOH) Page 2 Example: What is the hydroxide ion concentration in a solution that has a pOH of 5.70? On a calculator calculate 10-5.70, or "inverse" log (- 5.70).Explanation:
The substance being dissolved
A) Solute
B) Solubility
C) Solvent
Answers
Answer:
A) Solute
Explanation:
In forming a solution, the substance which is dissolved by the action of the solvent is called solute.
a gas sample has a total pressure of 1.7atm. if the sample contains 2 gases and 1 gas has pressure of 0.7 atm, what is the pressure exerted by the other gas?
Answers
Answer:
1 atm
Explanation:
The other gas exerts the remaining pressure
1.7 - .7 = 1 atm
The volume of a gas filled balloon is 22L at 313K and 1.5 atm. What would the volume be at 273K and 1 atm?
Answers
Answer:
28L
Explanation:
V1 = 22L V2 = ?
T1 = 313K T2 = 273K
P1 = 1.5atm P2 = 1.0atm
Using the combined gas law equations;
[tex]\frac{P1V1}{T1}= \frac{P2V2}{T2}[/tex]
∴[tex]V2 = \frac{P1V1}{T1} * \frac{T2}{P2}[/tex]
= [tex]\frac{1.5*22}{313} * (\frac{273}{1})[/tex]
V2 = 28L
From the calculations and the statement of the general gas equation, the volume of the gas becomes 28.8 L
What are gas laws?The gas laws are used to show the relationship between the variables in problems that has to do with gases.
In this case, we have to apply the general gas law as follows;
P1V1/T1 = P2V2/T2
P1V1T2 = P2V2T1
V2 = * 22L * 1.5 atm * 273K/313K * 1 atm
V2 = 28.8 L
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Oil spills are a very serious form of pollution. They severely affect marine biodiversity and coastal ecosystems. The table shows methods that can be used to control oil spills.
A scientist wants to design a solution to control an oil spill. This solution should decrease the impact of the oil spill on the local biodiversity of the ecosystem. The solution should also be quick and effective but have minimal negative effects on the environment. Which of the following solutions would be best for the scientist to choose?
A. allowing natural processes to occur without any human intervention
B. using mechanical methods to collect the oil in one part of the ecosystem
C. using chemical methods to break the oil into smaller droplets
D. using bioremediation to speed up existing, natural oil degradation
Hellpppp!
Answers
Answer:
D. using bioremediation to speed up existing, natural oil degradation.
Explanation:
Got an A on this.
Explanation:
The correct answer is option D
Activist groups have helped increase awareness of the dangers of drinking and driving.
A. True
B. False
Answers
A state government is trying to decide between using biomass or nuclear power to generate electricity. What advantage does biomass have over nuclear power?
0
A. Biomass does not produce pollution
0
B. Biomass releases less carbon dioxide.
0
C. Biomass is a nonrenewable source.
A
D. Biomass produces no radioactive waste
Answers
Answer:
D Biomass produces no radioactive waste
Explanation: