Answer:
The answer is "It leads to the formation of underground caves"
Explanation:
Texas Hill Land is popular for its rolling hills, good wine, and authentic food. Its Texas Hill Property appeal is no mystery, recognized as being one of the top vacation destinations in the World. Texas Hill Structure is primarily mostly of weak calcareous stone. Calcium may worsen or degrade if exposed to carbon dioxide in rainwater. This practice affects the land of the Texas smoky Mountains leading to the formation of underwater groves.
Explain why the following are made of thermosetting plastics.
(a) Saucepan handles
(b) Electric plugs/switches/plug boards
Answer:
a: they're used in saucepan handles 'cause they don't soften when heated and also 'cause they cant be bent easily.
b: thermosetting plastics are bad electricity conductors. they don't get moulded and are also hard and strong.
When a substance was dissolved in water, the temperature of the water increased. This process is described as
A.
endothermic with the release of energy
B.
endothermic with the absorption of energy
C.
exothermic with the release of energy
D
exothermic with the absorption of energy
Answer: a,
endothermic with the release of energy
Methane undergoes combustion. Which products form?
CO2, H2O, and O2
C and H2O
CO2 and H2O
CO2 and H
When methane undergoes combustion the carbon dioxide (CO₂) and water (H₂O) is formed. Therefore, option C is correct.
What do you mean by combustion ?A chemical reaction between two or more substances, usually involving oxygen, that produces heat and light in the form of a flame is called as combustion. The reaction is as follows:
CH4(g) + 2O₂(g) → CO₂(g) + 2H₂O
Methane burns in the presence of enough oxygen to produce carbon dioxide (CO₂) and water (H₂O). When it is burned, it produces a large amount of heat, making it an excellent fuel source.
Thus, option C is correct.
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can someone help me with this! because it have no idea what i’m doing feel free to solve anyone of these. THANK YOU
Answer:
1. 250 J
2. 500000 J
3. 146250 J
4. 400 J
Explanation:
1. Determination of the energy of the ball.
Mass (m) = 5 Kg
Velocity (v) = 10 m/s
Energy (E) =?
E = ½mv²
E = ½ × 5 × 10²
E = 2.5 × 100
E = 250 J
2. Determination of the energy of the rock.
Mass (m) = 250 Kg
Height (h) = 200 m
Acceleration due to gravity (g) = 10 m/s²
Energy (E) =?
E = mgh
E = 250 × 10 × 200
E = 500000 J
3. Determination of the energy of the car.
Mass (m) = 1300 Kg
Velocity (v) = 15 m/s
Energy (E) =?
E = ½mv²
E = ½ × 1300 × 15²
E = 650 × 225
E = 146250 J
4. Determination of the energy of the bullet.
Mass (m) = 0.005 Kg
Velocity (v) = 400 m/s
Energy (E) =?
E = ½mv²
E = ½ × 0.005 × 400²
E = 0.0025 × 160000
E = 400 J
Answer:
Sorry for the late answer but
Number 1 is 250 J
Number 2 is 500000 J
Number 3 is 146250 J
Number 4 is 400 J
Explanation:
When magnesium metal is burnt in air it reacts with both oxygen and nitrogen gses giving a white ash write to equatios for the reactions that take place
Answer:
See explanation
Explanation:
The most important thing to bear in mind when writing chemical reaction equation is that the equation must be balanced. A balanced chemical reaction equation is one in which the number of atoms of each element on the left and right hand sides of the reaction equation is exactly the same.
Equation of magnesium reaction with oxygen
2Mg(s) + O2(g) ------> 2MgO(s)
Equation of magnesium reaction with nitrogen
3Mg(s) + N2(g) ------> Mg3N2(s)
2. Two glasses full of water are left out on a table over
night. Both glasses have a diameter of 10
centimeters, but one is twice as tall as the other.
Which glass do you expect to lose more liquid to
evaporation in a short amount of time?
A.The taller glass
B.The shorter glass
C.They both lose the same amount
D.No evaporation takes place
Answer: C
Explanation: The evaporation rate depends on the exposed surface of liquid as long as both glasses stay at the same temperature. Since both glasses have the same surface area, they should both evaporate at the same rate.
Calculate the molar mass
Answer:
52
Explanation:
All of the following explains why solar energy a better source of energy except:
Solar energy produces less toxic gas in the atmosphere.
Solar energy can be mined with less damage to ecosystems.
There is less environmental impact when collecting solar energy.
Solar energy is unlimited and easily captured from the Sun.
Answer:
Solar energy can be mined with less damage to ecosystems
Explanation:
solar energy isint mined, its collected and it is kinda bad for the environment when you mine the metals to get the solar panel
Food chains always begin with what type of organism? Why?
What is tugror pressure ,what causes it,and what does it do for a plant?
Answer:
Explanation:
Turgor pressure is the pressure forced or in other words, exerted onto the cell wall of the plant. It's caused by the movement of water into the cell. This causes the water to rush and burst into the cell, which increases the pressure onto the cell wall. Due to that, cell swells up, which helping the plant to stand upright and straight.
Hope this helps
Answer:
Turgor pressure is the pressure exerted on the cell wall of a plant. It is caused by the movement of water into the cell. ... This causes water to rush into the cell, increasing the pressure on the cell wall. The cell swells up, helping the plant to stand upright.
what device has made car emissions much cleaner?
automatic transmission
better wheels
tail pipes
catalytic converters
Answer:
automatic transmission
Explanation:
An automatic transmission (sometimes abbreviated to auto or AT) is a multi-speed transmission used in motor vehicles that does not require any driver input to change gears under normal driving conditions.
hi can someone please help me answer this the question is in pictures
Is a shrimp an arachnid?
is a pill bug a insects, arachnid, or crustaceans?
is a scorpions a insects, arachnid, or crustaceans?
Answer:
Insects belong to the class Insecta, and arachnids to the class Arachnida; both classes fall under the Arthropoda phylum, along with crustaceans (crabs, lobster and shrimp). All arthropods have an exoskeleton and jointed legs. They have segmented bodies and appendages, which are divided into different segments. Arachnids belong to an even larger group of animals called “arthropods” which also include insects and crustaceans (lobster, crabs, shrimp, and barnacles).
Explanation:
acrostic words or phrases that describe street dance
need help i will give you thanks:)
Answer:
Precipitation
Explanation:
Precipitation is when water falls from the clouds back to earth as rain, snow, or hail. The water returns to the rivers to continue the water cycle. So, the answer is D, precipitation.
I hope this helps :)
Answer:
Vapor Information
Explanation:
Atmospheric rivers are relatively long, narrow regions in the atmosphere like rivers in the sky that transport most of the water vapor outside of the tropics. Not all atmospheric rivers cause damage, and most are weak systems that often provide beneficial rain or snow that is crucial to the water supply.
(You're welcome and have a nice day/night Ma'am/Sir.)
Someone help me please?
The following diagram on the left represents the copper nitrate solution in the half‑cell before the galvanic cell starts to operate. In the following diagram on the right, draw a representation of the solution in the same half‑cell after the galvanic cell has been operating for some time and is still producing a voltage.
Before reaction : 4 Cu2+ molecules and 8NO3-
Answer:
There is too much here for me to attempt in one sitting, but I will get you started and give suggestions that may help you proceed on your own.
a) As far as I can tell, you didn't provide the reduction potentials in the table below. So, I looked them up and find them to be
Cu2+ +2e- ==> Cu(s) Eº = +0.34 V
Zn2+ + 2e- ==> Zn(s) Eº = -0.76 V
Net ionic equation: Cu2+(aq) + Zn(s) ==> Cu(s) + Zn2+(aq)
b) Eºcell = 0.34 V + 0.76 V = 1.10 V
c) ∆Gº = -nFEº where n = number of electrons transferred (2) and F = 96,485 C/mol e- and Eº = 1.1 V
d) Again, there is no diagram
e) same
f) Use the Nernst equation Ecell = Eºcell - 2.303RT/nF log Q where R = 8.314; T = Kelvin; F = Faraday const. and Q = reaction quotient, i.e. products/reactants
g) the cell voltage is an intensive property. That should help you answer this part of the question
Explanation:
its not much but i hoped this helped
A volcano has no ____
only heat.
Answer:
A volcano has no friends only heat.
Explanation:
Order the terms according to the path followed by oxygen during cellular respiration.
Answer:
Outside air
Nose
Lungs
Bloodstream
Cell
Explanation:
We breathe in oxygen from the outside air in through our nose and it travels to our lungs. Inside our lungs, we have Avioli's that diffuse oxygen into our bloodstream and the bloodstream helps the oxygen travel into our cells.
Hope this helps :)
Respiration is the process of exchange of gases between the cell and atmosphere. The path of respiration involves Outside Air⇒ Nose⇒ Lungs⇒ Bloodstream⇒ Cell.
What is respiration?Respiration is the movement of oxygen from the outside environment to the cells and the removal of carbon dioxide from the cells into the outside environment.
Respiration is of two types depending upon the presence of oxygen:
1. Aerobic Respiration: This takes place in the presence of oxygen
2. Anaerobic Respiration: This takes place in the absence of oxygen.
The path of respiration includes inspiration of outside air into the nose, through the nostrils this air is passed on to the lungs. The alveoli is the site of gaseous exchange in the lungs. In the lungs, oxygen is inspired and carbon dioxide is expired.
The oxygen gas which is inspired by the lungs is dissolved in the blood. Oxygen forms a complex with the hemoglobin protein present in the blood. This blood is then circulated to all the cells and tissues of body. Thus, the oxygen is supplied to all the cells and tissues. The path includes Outside Air⇒ Nose⇒ Lungs⇒ Bloodstream⇒ Cell.
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When salt dissolves in water:
A. intermolecular forces in the solute are broken and new ion-dipole forces in the solution are formed
B. ionic bonds in the solute are broken and new intermolecular forces in the solution are formed intermolecular forces in the solute are broken and new intermolecular forces in the solution are formed
C. ion-dipole forces in the solute are broken and new ion-dipole forces in the solution are formed
D. ionic bonds in the solute are broken and new ionic bonds in the solution are formed
E. ionic bonds in the solute are broken and new ion-dipole forces in the solution are formed
F. ion-dipole forces in the solute are broken and new intermolecular forces in the solution are formed
G. intermolecular forces in the solute are broken and new ionic bonds in the solution are formed
H. ion-dipole forces in the solute are broken and new ionic bonds in the solution are formed
Answer:
ionic bonds in the solute are broken and new ion-dipose forces in the solution are formed
Explanation:
Please Help me with number 4 I really need help please just tell me which letter is
Answer:
4. D
Explanation:
Matter can exist in three states namely: solid, gas and liquid. These three states are individually unique because they possess different properties or characteristics. Matter consists of particles, which behave differently in the different states.
Particles of a liquid e.g water, ethanol etc. will move freely about in the container it is placed but in close contact with one another. This means that the particles move freely while still attached to one another. This accounts for the reason liquids are said to FLOW.
How many grams of solid iron will be produced from 32.1 grams of iron (III) oxide? Hint: Balance the equation first
Answer:
22.45g of Fe will be produced
Explanation:
The balanced reaction is:
Fe₂O₃(s) + 3CO(g) → 2Fe(s) + 3CO₂(g)
Where 1 mole of Iron (III) oxide reacts with 2 moles of Iron
To solve this question we have to find the moles of iron (III) oxide. With these moles and the balanced reaction we can find the moles of iron produced and its mass:
Moles iron (III) oxide -Molar mass: 159.69g/mol-
32.1g Fe₂O₃ * (1mol / 159.69g) = 0.201 moles Fe₂O₃
Moles Iron:
0.201 moles Fe₂O₃ * (2mol Fe / 1mol Fe₂O₃) = 0.402 moles of Fe
Mass Fe -Molar mass: 55.845g/mol-
0.402 moles of Fe * (55.845g/mol) =
22.45g of Fe will be producedAccording to the law of conservation of matter, the number of_______is not changed by a chemical reaction
A. Molecules
B. bonds
C. products
D. atoms
Answer:
Atoms
Explanation:
According to the law of conservation of matter, matter is neither created nor destroyed, so we must have the same number and kind of atoms after the chemical change as were present before the chemical change.
3) Pick the correct definition for : A signal represented by a continuous wave *-1 analog signal-2 digitized siganal-3-encode-4-transmit-5-wave pulse.lzz help
Answer:
it is analog signal, your welcome
Answer:
Analoge
Explanation:
Analog signal
BRAINILIEST PLEASEA researcher is trying to identify whether household
substances are basic. Which approach would BEST help
the researcher investigate whether substances are
basic?
O A. Test each substance with blue litmus paper.
a
B. Test each substance with red litmus paper.
O
C. Mix each substance with a weak base and record the
results.
o
D.. Observe each substance and record its color.
If an atom of Phosphorous has 17 neutrons, what is its mass number?
a) 31
b) 32
c) 15
D) 17
In the context of this graph, what do the slope and y-intercept mean?
Answer: The slope and y-intercept values indicate characteristics of the relationship between the two variables x and y. The slope indicates the rate of change in y per unit change in x. The y-intercept indicates the y-value when the x-value is 0.
Which of the following is a property of elements?
O
Elements have at least two different types of atoms.
Elements have their own individual characteristic properties.
Elements are can be separated from one another.
Elements have the ability to change into a different element.
4.6 moles of a gas are at a temperature of 325 K and a volume of 96.8 L, what is the pressure of the ga
Answer:
1.3 atm
Explanation:
Apply the ideal gas law: PV = nRT
Since we need to find the pressure, solve for pressure:
P = nRT / V
Plug in our given values of n = 4.6 moles, R = 0.08206 (ideal gas law constant using atm), T = 325 K, and V = 96.8 L:
P = 4.6(0.08206)(325) / 96.8 = 1.267 atm -> 1.3 atm (two significant figures)
Which ionization process requires the most energy? which ionization process requires the most energy? f(g) → f +(g) + e- o(g) → o +(g) + e- f +(g) → f 2+(g) + e- o +(g) → o 2+(g) + e-?