Answer:
In the explanation
Explanation:
Divergent: When two plates are diverging from each other, meaning that the two plates are moving away from each other. Events that may occur include ridges or rifts.
Convergent: When two plates are moving towards each other.
If a continental plate and an oceanic plate are converging, the oceanic plate would slide underneath the continental plate since it is thinner. This would result in subduction, which means that part of the oceanic plate would hang underneath the continental plate, where magma can melt the hanging part.
If two continental plates are converging, the crash would result in mountains or volcanic activity. Magma could rise and rush from the crack. There would be a bump in these tectonic plates.
Transform: When two plates are sliding past each other. Earthquakes can occur when the plates are sliding. When an oceanic plate is involved, the movement of the plates could cause a tsunami as well. The water above the transform fault could rise, and grow bigger and bigger. The 2011 Japan Tsunami is a good example of this.
Hope this helps!
An unknown metal with a mass of 8.5 g was heated in boiling water to a temperature of 100°C. The metal was immediately transferred to an insulated cup containing 50.0 g of water at 22°C. At equilibrium (when the temperature became constant) the temperature of the system was 23.2°C. Calculate the specific heat of the metal and determine its identity. Explain how you arrived at your conclusion. You must show your work to receive credit for your answer.
The specific heat of the metal : 0.384 J/g° C,
and a metal with a specific heat of 0.384 is copper
Further explanationThe law of conservation of energy can be applied to heat changes, i.e. the heat received / absorbed is the same as the heat released
Q in = Q out
Q lost(metal) = Q gained(water)
Heat can be calculated using the formula:
Q = mc∆T
Q = heat, J
m = mass, g
c = specific heat, joules / g ° C
∆T = temperature difference, ° C / K
[tex]\tt Q~metal=Q~water\\\\8.5\times c\times (100-23.2)=50\times 4.18\times(23.2-22)\\\\652.8\times c=250.8\Rightarrow c=\dfrac{250.8}{652.8}=0.384~J/g^oC[/tex]
bob hits a baseball.what two systems are working together to make this happen
Answer:
Muscular, and aerobic
Explanation:
the answer is bat and person
The color of an outfit object is the color of the light that it
Reflects
Refracts I need help
Hello
Absorbs
it is still available please let us know
How many grams of oxygen (O) are present in 0.0207 moles of Ca(HCO 3) 2
Answer:
1.99grams
Explanation:
- First, we need to calculate the molar mass of the compound: Ca(HCO3)2
Ca = 40g/mol, H = 1g/mol, C = 12g/mol, O = 16g/mol
Hence, Ca(HCO3)2
= 40 + {1 + 12 + 16(3)}2
= 40 + {13 + 48}2
= 40 + {61}2
= 40 + 122
= 162g/mol
Molar mass of Ca(HCO3)2 = 162g/mol
- Next, we calculate the mass of oxygen in one mole of the compound, Ca(HCO3)2.
Oxygen = {16(3)}2
= 48 × 2
= 96g of Oxygen
- Next, we calculate the percentage composition of oxygen by mass by dividing the mass of oxygen in the compound by the molar mass of the compound i.e.
% composition of O = 96/162 × 100
= 0.5926 × 100
= 59.26%.
- The number of moles of the compound, Ca(HCO3)2, must be converted to mass by using the formula; mole = mass/molar mass
0.0207 = mass/162
Mass = 162 × 0.0207
Mass = 3.353grams
However, in every gram of Ca(HCO3)2, there is 0.5926 g of oxygen
Hence, in 3.353grams of Ca(HCO3)2, there will be;
0.5926 × 3.353
= 1.986
= 1.99grams.
Therefore, there is 1.99grams of Oxygen in 0.0207 moles (3.353g) of Ca(HCO3)2.
Zn(s) + 2HCl(aq) > H2(g) + ZnCl2 (aq)
When 25.0g of Zn reacts, how many mols of HCl are consumed?
A. 0.0171 B. 1.5 C. 0.76 D. 22.4 E. 0.38
When 25.0g of Zn reacts, mols of HCl are consumed 0.7648 moles HCl
Write down the balanced chemical equation for this one replacement reaction first.
Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g)↑⏐
Now take note of the 2:1 mole ratio of reaction between the two reactants. This demonstrates that the reaction will always use up two times as much hydrochloric acid as zinc metal.
As you are aware, a solution's molarity indicates the number of moles of solute—in your case, hydrochloric acid, HCl—that are present in one liter of the solution.
The molarity of the hydrochloric acid solution is reported to be
3.05 mol L−1. This indicates that for every 1 L of solution, 3.05 moles of hydrochloric acid are produced. Remember this for later. You are aware that the reaction needs 25.0 g of zinc.
By using the molar mass of zinc, you can convert this mass to moles.
25 g per mole Zn
65.38g = 3.824 moles of zinc
n order for this many moles of zinc to react, you'd need
0.3824moles Zn⋅2amoles
HCl 1 mole Zn=0.7648 moles HCl
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Which of the following are kept as a constant in Boyle's law (check all that
apply)
volume
temperature
amount
pressure
none of these
Answer:
temperature
amount
Explanation:
Under the postulate of Boyle's law, both temperature and amount(number of moles) are kept constant.
According to Boyle's law "the volume of a fixed mass of gas varies inversely as the pressure changes if the temperature is constant"
Based on the premise of this law, both temperature and amount of substance is kept constant.
Type of bond where two elements form oppositely charge ions that are attracted
Answer:
If electronegativity difference is greater than 1.7 then ionic bond other wise covalent bond
Explanation:
In a chemical reaction, [_____] are the substances present after the reaction.
Answer:
Products
Explanation:
A neutral atom of Cl-37 has
O 37 protons, 37 neutrons, and 37 electrons O 17 protons, 37 neutrons, and 17 electrons 17 protons, 20 neutrons, and 37 electrons 17 protons, 20 neutrons, and 17 electrons
Answer:
17 protons, 20 neutrons, and 17 electrons.
Explanation:
A periodic table can be defined as the standard arrangement of chemical elements by atomic number, electronic configuration and chemical properties in a tabular form.
Generally, a proper representation of the mass number and atomic number of chemical elements is key and very important in chemistry.
Furthermore, as a rule, it should be noted that the mass number (nucleon number) is always larger than the atomic number(number of proton).
The mass number of this neutral atom of Cl-37 is 37 and we know that the atomic number (number of protons) of chlorine is 17. Also, the atomic number of an element is equal to the number of its electrons.
A neutral atom of Cl-37 has 17 protons, 20 neutrons, and 17 electrons.
Hence, a neutral atom of Cl-37 can be identified based on its number of protons because it represent its atomic number, which is what is used to differentiate an atom of an element from the atom of another chemical element.
When discussing distances between the solar system, which term do we use
A. Actual distance
B. Relative Brightness
D. Realtive distance
If its right you get brainless
I'm in 5th grade
Which of these best explains why Earth's tectonic plates move?
b
Convection currents in the asthenosphere make fluid particles move.
Cooling causes contraction and shifting of the fluid particles in the lithosphere.
Cooling causes expansion and shifting of the fluid particles in the asthenosphere
d
Convection currents in the lithosphere make fluids move in a circular motion
Answer:
Cooling causes contraction and shifting of the fluid particles in the lithosphere.
Answer:
The 2 answer
Explanation:
Which among these were independent
variables?
Amount of sunlight
Amount of water
Amount of fertilizer
Plant growth
A serving of Cheez-Its releases 130 kcal (1 kcal = 4.18 kJ) when digested by your body. If this same amount of energy were transferred to 2.5 kg of water at 27˚C, what would the final temperature be?
The final temperature : 78.925°C
Further explanationHeat can be calculated using the formula:
Q = mc∆T
Q = heat, J
m = mass, g
c = specific heat, joules / g ° C
∆T = temperature difference, ° C / K
Energy releases = 130 kcal = 130 x 4.18 kJ=543.4 kJ
The final temperature :
[tex]\tt \Delta T=\dfrac{Q}{m.c}\\\\\Delta T=\dfrac{543.4}{2.5\times 4.186~kJ/kg^oC}\\\\\Delta T=51.925^oC[/tex]
Final temperature :
ΔT=final-initial
51.925°c=final-27°c
final = 51.925+27=78.925°C
What types of geological events can the following interactions produce?
Divergent boundaries:
Convergent boundaries:
Transform boundaries
Answer:
divergent boundaries- volcanic activity, shallow earthquakes, new sea floor.
convergent boundaries- earthquakes, volcanoes, formation of mountains.
transform boundaries- earthquakes, crustal deformation
Explanation:
(hope this helped!!)
what is the value of 100cm^3 in dm^3
Answer:
0.1 dm³.
Explanation:
To obtain the value of 100 cm³ in dm³, do the following:
Recall:
1 cm³ = 0.001 dm³
Therefore,
100 cm³ = 100 cm³ × 0.001 dm³ / 1 cm³
100 cm³ = 0.1 dm³
Thus, 100 cm³ is equivalent to 0.1 dm³.
assuming nitrogen behaves like an ideal gas, what volume would 14.0 g of nitrogen gas (N2) occupy at STP? the gas constant is 0.0821 Lxatm/kxmol
Answer:
V = 22.41 L
Explanation:
Given data:
Mass of nitrogen = 14.0 g
Volume of gas at STP = ?
Gas constant = 0.0821 atm.L/mol.K
Solution:
Number of moles of gas:
Number of moles = mass/molar mass
Number of moles= 14 g/ 14 g/mol
Number of moles = 1 mol
Volume of gas:
PV = nRT
1 atm × V = 1 mol × 0.0821 atm.L/mol.K × 273 K
V = 22.41 atm.L / 1 atm
V = 22.41 L
PLEASE HELP PLEASE HELP PLEASE HELP PLEASE HELP!!
DUE IN 10 MINS
Number 9 and 10!
Answer:
the answer is your a awesome person
Which gas law is represented by the following equation: V1/T1 = V2/T2
1 point
Gay-Lussac's law
Boyle's law
Avogadro's law
none of these
Charles's law
Answer:
Charles's law
Explanation:
The chemical equation given is that of Charles's law;
The law states that "the volume of a fixed mass of a gas varies directly as its absolute temperature if the pressure is constant"
mathematically;
v ∝ T ( P, n constant)
So;
V1/T1 = V2/T2
V and T are volume and temperature values
1 and 2 are initial and final states
he structure of the product, C, of the following sequence of reactions would be:
Answer:
I
Explanation:
The complete question can be seen in the image attached.
We need to understand what is actually going on here. In the first step that yields product A, the sodamide in liquid ammonia attacks the alkyne and abstracts the acidic hydrogen of the alkyne. The second step is a nucleophilic attack of the C6H5C≡C^- on the alkyl halide to yield product B (C6H5C≡C-CH3CH2).
Partial reduction of B using the Lindlar catalyst leads to syn addition of hydrogen to yield structure I as the product C.
how to know if a guy is really into you?
How many different elements are involved in the chemical reaction shown?
2Fe2O2 + 3C --> 4Fe+3CO2
Answer:
3
Explanation:
fe is iron ,O is oxygen and C is carbon
the most well-known biogenic d-elements
Answer:
Zn, Cu, Fe, Mn, Co, Mo
Explanation:
Biogenic elements are chemical elements constantly present in organisms and having definite biological significance(Bowen, 1966).
There are many of these biogenic elements in nature. Among the elements of the d-block, Zn, Cu, Fe, Mn, Co, Mo are worthy of mention among others.
Free ions of d- block metals are not found in the body. The elements are present in the form of bioinorganic complexes of the respective metals. They commonly exist as co-factors of proteins that carry out essential biological functions.
HELPPPP give me an example of thermal energy and describe what is happening at particle level.
Answer:
Thermal energy (also called heat energy) is produced when a rise in temperature causes atoms and molecules to move faster and collide with each other. The energy that comes from the temperature of the heated substance is called thermal energy.
Explanation:
will this help you
what are the answers easily!!!!
Answer:
True
True
Temperature
Explanation:
How much sulphuric acid containing 80% H2SO4 by weight is needed to produce 500 kg of 80% HCL by weight 2NaCl+ H2SO4--------Na2SO4 + 2HCl
In the given question, the sulphuric acid which is needed to be produced is 408.333 Litres. NaCl + H₂SO₄ → HCl + NaHSO₄
This question is based on stoichiometry, in which we first balance the equation, equate the moles or the masses of elements and using the mole ratio or mass ratio, find the given amount of weight or moles of the desired element from the reaction. Stoichiometry helps us to predict the reaction components that how much it participates in the reaction, how much we the get the product or how much reactant is left. So, in the given question,
Equating the Molar masses: 58 + 98 → 36 + 120. Mass of HCl =[tex]500*0.8= 400[/tex] kg. Balancing the mass:
[tex]400[(58/120)+(98/120)][/tex] → [tex]400[(36/120)+(120/120)][/tex]
Volume of H₂SO₄ 80% = [tex]400 * (98/120)] /0.8= 408.333[/tex]
The final answer is 408.333 Litres. This was solved using Stoichiometry.
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HELP ASAP I WILL GIVE BRAINLIEST
what is the duration of time in minutes for ammonium nitrate crystals and a pouch of water?
The temp range is 180*C to 250*C so how long can it last?
Answer:
it can last for 30 minutes
Explanation:
because it is very good at giving off heat, extothermal heat can last for quite a while.
Gaseous methane CH4 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. Suppose 0.80 g of methane is mixed with 1.92 g of oxygen. Calculate the maximum mass of water that could be produced by the chemical reaction. Round your answer to 3 significant digits.
Answer:
1.08 g of water
Explanation:
The balanced chemical equation for the reaction of combustion of methane (CH₄) is the following:
CH₄(g) + 2 O₂(g) → CO₂(g) + 2 H₂O(g)
According to the equation, 1 mol of CH₄ reacts with 2 moles of O₂. We convert from mol to grams by using the molar masses:
1 mol CH₄ = (1 x 12 g/mol) + (4 x 1 g/mol) = 16 g
2 mol O₂ = 2 x (2 x 16 g/mol) = 64 g
2 mol H₂O = 2 x ((2 x 1 g/mol) + 16 g/mol)= 36 g
From the masses of reactants (CH₄ and O₂), we can see that the stoichiometric ratio is 64 g O₂/16 g CH₄ = 4.
First, we have to identify which reactant is the limiting reactant. We can compare the stoichiometric ratio with the actual reactants ratio (the masses of reactants we have):
1.92 g O₂/0.80 g CH₄ = 2.4
As 4>2.4, we can conclude that O₂ is the limiting reactant.
Now, we consider the stoichiometric ratio between the limiting reactant (64 g O₂) and the product we have to calculate (36 g H₂O), and we multiply the ratio by the actual mass of O₂:
1.92 g O₂ x 36 g H₂O/64 g O₂ = 1.08 g
Therefore, 1.08 g of H₂O will be produced by the chemical reaction of 0.80 g of methane with 1.92 g of oxygen.
The rock has a mass of 6g and a volume of 3cm3. What is the density of the rock?
Answer:
2g/cm³
Explanation:
Given parameters:
Mass of rock = 6g
Volume of rock = 3cm³
Unknown:
Density of rock = ?
Solution:
Density is the mass per given volume of a substance. It can be mathematically expressed as:
Density = [tex]\frac{mass}{volume}[/tex]
Insert the parameters and solve;
Density = [tex]\frac{6}{3}[/tex] = 2g/cm³
How many moles of sulfur dioxide (SO2) are required to produce 5.0 moles of sulfur (S) according to the following balanced equation? SO2 + 2H2S - 3S + 2H2O
Answer:
1.67 moles
Explanation:
From the balanced equation of reaction:
[tex]SO_2 + 2H_2S -> 3S + 2H_2O[/tex]
1 mole of sulfur dioxide, SO2, is required to produce 3 moles of sulfur, S.
If 1 mole SO2 = 3 moles S, then, how many moles of SO2 would be required for 5 moles S?
Moles of SO2 needed = 5 x 1/3
= 5/3 or 1.67 moles
Hence, 1.67 moles of SO2 would be required to produce 5.0 moles of S.
Answer: 1.7
Explanation:
A 10.0-g sample of sodium chloride was placed in 10.0 g of water. If 3.85 g of Cl2 was obtained, what was the percent yield of Cl2
Answer:
63.53% yield
Explanation:
The balanced equation for this reaction is 2NaCl + H2O -> 2NaOH +Cl2
First we must find the limiting reactant
From NaCl we can only produce 6.06 grams of Cl2 in theory
From H20 we can only produce 38.995 grams in theory
so we know NaCl is the limiting
% yield is (Actual/Theoretical) x100 so
(3.85/6.06)x100= 63.53% yield