Answer:
Sun
↓
Alfalfa
↓
Rabbit
↓
Coyote
Explanation:
To find - Choose one food chain in the web. Name all of the organisms in that chain. Start with a producer and end with the top level consumer.
Solution -
We know that,
A food chain is a series of events in which one organism eats another and obtains energy.
The Food chain is as follows :
Sun
↓
Alfalfa
↓
Rabbit
↓
Coyote
___Fe2O3 + ___C --> ___Fe + ___ C03 balanced
Answer:
Fe2O3 + C → 2Fe + CO3
Explanation:
The unbalanced equation given in this question is as follows:
Fe2O3 + C → Fe + C03
To balance this equation, one should ensure that the number of atoms of each element on both sides of the equation is equal. The balanced equation is as follows;
Fe2O3 + C → 2Fe + CO3
N.B, there are;
- 2atoms of Fe on both sides
- 1 atom of C on both sides
- 3 moles of O on both sides
The temperature of the areas surrounding Kochi before each storm was about 10°C and there was the same amount of water vapor in the air. Given this information, which storm do you predict will have the most rainfall, and why?
Answer:
Tropical storm
Explanation:
The tropical storm have the most rainfall because tropical winds will increase in strength as temperatures rise. With the increase in temperature, the tropical storms have stronger winds which leads to produce higher rainfall. There is a direct relationship between temperature and amount of rainfall. As the temperature increases, the tropical storms have stronger winds which leads to more rainfall while on the other hand, decrease in temperature decrease the strength of the tropical storm's winds that leads to lower rainfall.
The temperature given shows that the storm that will be predicted is a tropical storm.
What is temperature?It should be noted that temperature means the degree of hotness or coldness in a body.
In this case, since the temperature of the areas surrounding Kochi before each storm was about 10°C and there was the same amount of water vapor in the air, the appropriate storm is a tropical storm.
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What trait of a wave is described by its wavelength?
O
A. The speed and direction that the wave is traveling
B. The distance from one wave peak to the next wave peak
C. The distance from the peak to the bottom of a wave
ОО
D. The number of waves that pass a point in 1 second
Help plisss!!!
Answer:
The distance from one wave peak to the next wave peak
Explanation:
a pex
The trait of a wave that is described by its wavelength is the speed and direction that the wave is traveling. Therefore, the correct option is option A.
Energy is moved around the world in two main ways: mechanical waves as well as electromagnetic waves. Mechanical waves include air and water waves caused by sound. A disruption or vibration within matter, either solid, gas, liquid, and plasma, is what generates mechanical waves.
A medium is described as material through which waves are propagating. Sound waves are created by vibrations inside a gas, while water waves are created by vibrations inside a liquid (air). The trait of a wave that is described by its wavelength is the speed and direction that the wave is traveling.
Therefore, the correct option is option A.
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If a screwdriver was used to pry open a door, where would scratches/striations be found?
Answer: Most likely around the knob area or by the bolts that hold the door up.
Explanation:
If you attempted to pry open a locked window with a screwdriver, the screwdriver would leave a tool mark on the window and windowsill.
The impressions made by a tool when it comes in contact with an object are called as tool marks. These tool marks exhibit a variety of impressions depending upon the type of tool, its shape and its use. They are classified into different types depending upon the force with which they are made.
The study of tool marks is very useful in forensic science which includes information about the analysis of tool marks at the crime scene and in the laboratory, the interpretation and assessment of challenges for examination and interpretation and also the way in which tool mark evidence can be presented in a courtroom.
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A gas is held at 120.4 kPa and 333K. When the temperature is decreased to
275K at a constant volume, calculate the new pressure in the container.
Type your answer with the correct number of sig figs and units. *
Help please 100 points!!
Answer:
....
Explanation:
Find the molecular formula for CH that has a molecular weight of 65g.
Answer: Molecular Formula is C5H5
Explanation: M(CH) = 13.018 g/mol
Empirical formula of compound is (CH)x in which x = 2,3,4,...
Molar mass of the substance is 65 g. x = 65 g/mol : 13 g/mol = 5
What is the sum of the coefficients for the balanced chemical equation below ?
Answer:
9
[tex]4X \: + \: 3Y _{2} \: → \: 2X _{2} Y _{3}[/tex]
Sum = 4+3+2
=9
86.30 mL of an HCl solution was required to neutralize 31.75 mL of 0.150 M NaOH. Determine the molarity of the HCI.
Answer:
0.055M
Explanation:
Using the formula as follows:
CaVa = CbVb
Where;
Ca = concentration of acid (M)
Cb = concentration of base (M)
Va = volume of acid (mL)
Vb = volume of base (mL)
According to the information given in this question, Ca (HCl) = ?, Cb (NaOH) = 0.150, Va (HCl) = 86.30mL, Vb (NaOH) = 31.75mL
Using CaVa = CbVb
Ca = CbVb ÷ Va
Ca = (0.150 × 31.75) ÷ 86.30
Ca = 4.7625 ÷ 86.30
Ca = 0.055M
What is the mass of oxygen gas (O2) needed when 8.75 x 1070 molecules of methane (CH4) combust to form carbon dioxide (CO2)? (Choose closest answer)
CH4 + 2O2 -> CO2(g) + 2H2O
A.
8.43 x 1093 grams
B.
9.299 x 1048 grams
C.
2.32 x 103 grams
D.
9.08 grams
E.
my mom
If you start with 6 moles of N2 and 6 moles of H2 (meaning you won't have enough of 1 of the ingredients), how many moles of NH3 would you be able to make?
Answer:
[tex]4molNH_3[/tex]
Explanation:
Hello there!
In this case, according to the given information it will be firstly necessary to set up the chemical equation taking place:
[tex]N_2+3H_3\rightarrow 2NH_3[/tex]
We infer we need to calculate the moles of NH3 by using both of the moles of N2 and H2 at the beginning, in order to identify the limiting reactant:
[tex]n_{NH_3}=6molN_2*\frac{2molNH_3}{1molN_2}=12molNH_3\\\\ n_{NH_3}=6molH_2*\frac{2molNH_3}{3molH_2}=4molNH_3\\[/tex]
Thus, since hydrogen yields the fewest moles of ammonia, we conclude that we are just able to yield 4 moles of NH3.
Regards!
What is one benefit that nuclear power plants currently provide for our environment? O A. They provide energy while increasing natural gas pollution. B. They provide energy while increasing biomass by-products. OC. They provide energy without increasing carbon dioxide emissions. OD. They provide energy without increasing nuclear waste.
¿Qué es una fuente de luz secundaria?
Answer:
Las fuentes secundarias son testimonios de segunda mano elaborados con posterioridad a los hechos ocurridos y basados en la información de las fuentes primarias, por ejemplo: libros y revistas, películas, video-documentales, series televisivas, textos escolares y mapas temáticos.
Answer:
Las fuentes de luz secundarias son aquellas que reflejan la luz que produce otra fuente. Por ejemplo: la luz de la luna (refleja la luz que produce el Sol), un espejo.
Explanation:
¿Cómo se llama el proceso en donde se transforma el oxígeno en dióxido de carbono
Answer:
respiración
Explanation:
What may cause a species to become less genetically diverse?
A. Isolation from members of its species
B. Low population numbers
C. Both isolation and low population numbers
D. None of these
"science"
Answer:
b i think im not fully sure
Explanation:
Answer:
C- Both isolation and low population
Explanation:
90 percent sure
Can someone pls tell what to put in 6 and 7 pls no links ???
HELP PLEASE CHEMISTRY!!!!
Answer:
amını sike bilirim tabi verirsen
HELP NOW PLEASE NO LINKS HELP ASAP RIGHT NOW.
What do greenhouse gases do in our atmosphere?
Explanation:
Greenhouse gases are gases in Earth's atmosphere that trap heat. They let sunlight pass through the atmosphere, but they prevent the heat that the sunlight brings from leaving the atmosphere.
What is the mass number of an atom that has 12 neutrons and 11 protons?
24
12
11
23
Answer:
23
Explanation:
Calculate the number of moles of Al2O3 that are produced when 1.2 mol of FeO is used in the following reaction.
2Al(s) + 3FeO(s) -> 3Fe(s) + Al2O3(s)
A.
3.6 mol Al2O3
B.
3.6 mol Fe
C.
0.40 mol Fe
D.
0.40 mol Al2O3
E.
0.60 mol Al2O3
F.
2.4 mol Al2O3
Answer:
D
Explanation:
What are the environmental factors in space that need to be taken into account in the design of electronics?
Answer: Here
Explanation:
trapped and transient radiation, solar and galactic cosmic rays, which can profoundly damage spacecraft electronics are presented
Answer:
Environmental factors including trapped and transient radiation, solar and galactic cosmic rays, which can profoundly damage spacecraft electronics are presented. Some effects such as ionization and atomic displacement damages to semiconductors and single event phenomena are also briefly mentioned.
Explanation:
Given the balanced equation representing a reaction:
H2SO3 + H2O « H3O+ + HSO3-
According to one acid-base theory, the H2SO3 molecules act as (AKS 5g)
Answer:
An acid because they donate H^+ ions
Explanation:
Let us look at the equation again;
H2SO3 + H2O « H3O+ + HSO3-
An acid donates hydrogen ion while a base accepts hydrogen ion. Hence, we have to look at which species that acted as hydrogen ion donors or acceptors.
We can clearly see that H2SO3 acted as a hydrogen ion donor while H2O acted as a hydrogen ion acceptor.
Thus, H2SO3 acted as an acid by donating hydrogen ions.
Write a formula that you can use in order to calculate the number of neutrons in an atom:
Number of Neutrons=____________________________
Answer:
number of neutrons = mass number - number of protons
6. What category of elements is found between the metals and nonmetals
on the periodic table?
A synthetic
B. metalloids
C. radioactive
D. noble gases
Answer:
B. metalloids
Explanation:
The metalloids are found between metals and non-metals on the periodic table.
Metalloids have properties between those of metals and non-metals. Under certain prevalent conditions, they exhibit a set of properties.
Synthetic substances are those artificially made, they are not found on the periodic table.
Noble gases are found in the last group on the periodic table.
Radioactive substances are found in the lanthanide and actinide series.
how many moles are there in 302 grams of Ca2N2
Answer:
2.0371352212585085
Explanation:
Calculate the specific heat capacity of the unknown metal given the
following information; the mass of the metal is 225 g, the temperature
raises by 13C and the energy absorbed was 1363 joules.
A. 0.466 j/gC
B.1.02j/gC
C.0.96 j/gC
D.2.14 j/gC
Answer: The specific heat capacity of the unknown metal given is [tex]0.466 J/g^{o}C[/tex].
Explanation:
Given: Mass = 225 g
Change in temperature = [tex]13^{o}C[/tex]
Heat energy = 1363 J
The formula used to calculate specific heat is as follows.
[tex]q = m \times C \times \Delta T[/tex]
where,
q = heat energy
m = mass of substance
C = specific heat
[tex]\Delta T[/tex] = change in temperature
Substitute the values into above formula as follows.
[tex]q = m \times C \times \Delta T\\1363 J = 225 g \times C \times 13^{o}C\\C = \frac{1363 J}{225 g \times 13^{o}C}\\= 0.466 J/g^{o}C[/tex]
Thus, we can conclude that the specific heat capacity of the unknown metal given is [tex]0.466 J/g^{o}C[/tex].
PLEASE HELPPP!!!! THANK YOUUU!!!!
You have the correct answer
4) When solid sodium nitrate is heated, solid sodium nitrite and oxygen gas
(02) are produced. Write the balanced chemical equation for this chemical
reaction using the correct chemical formulas and include conditions (s, l, g, or
aq). Put your answer in the box below.
Write the balanced chemical equation and state what type of chemical reaction this is.
Answer: The balanced chemical equation is [tex]2NaNO_{3}(s) + Heat \rightarrow 2NaNO_{2}(s) + O_{2}(g)[/tex] and it is a decomposition chemical reaction.
Explanation:
A chemical reaction in which single compound is decomposed into two or more species is called a decomposition reaction.
For example, [tex]NaNO_{3}(s) + Heat \rightarrow NaNO_{2}(s) + O_{2}(g)[/tex]
As the compound [tex]NaNO_{3}[/tex] is decomposing to given two different substances. So, it is a decomposition reaction.
Here, the number of atoms on reactant side are as follows.
Na = 1N = 1O = 3The number of atoms on product side are as follows.
Na = 1N = 1O = 4To balance this equation, multiply [tex]NaNO_{3}[/tex] by 2 on reactant side and multiply [tex]NaNO_{2}[/tex] by 2 on product side. Therefore, the equation will be rewritten as follows.
[tex]2NaNO_{3}(s) + Heat \rightarrow 2NaNO_{2}(s) + O_{2}(g)[/tex]
Here, number of atoms on reactant side are as follows.
Na = 2N = 2O = 6The number of atoms on product side are as follows.
Na = 2N = 2O = 6Hence, this equation is balanced.
Thus, we can conclude that the balanced chemical equation is [tex]2NaNO_{3}(s) + Heat \rightarrow 2NaNO_{2}(s) + O_{2}(g)[/tex] and it is a decomposition chemical reaction.
A dog runs 6 km in 30 minutes. What is the dog’s average speed in km/h?
here's your solution
==> distance covered = 6 km
==> time taken = 30 min
==> time in hour = 30/60 = 1/2hr
= speed = distance/time
==> speed = (6)/(1/2)
==> speed = 12 km/hr
hope it helps
When a dog run 6 km in 30 minutes then dogs average speed will be 12 km/h.
What is average speed?The average speed of something is computed by dividing the number distance travelled by the total time it took to travel that distance. Average speed can be determined by the formula:
V=d/T
where, V is average speed , d is distance and T is time.
It is given that , d= 6 km and T= 30 minutes(0.5 h).
Calculation of average speed is show below:
Now, puts the value of given data in average speed formula.
Average speed(V )= 6/ 0.5 = 12 km/h
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Se tiene una solución de vinagre cuya masa es de 360 gramos y densidad 0,9 g/ml. Si el porcentaje en volumen de soluto es 8%, ¿cuál es el volumen del soluto (ácido acético)?
Answer:
a
Explanation: