Answer:
minimum energy required to to remove the most loosely bound election of an isolated gaseous atom.
Explanation:
This is the original color of the Statue of Liberty gifted to the United States by
France. It's very different from the way it looks today. Describe why it has
changed and possible causes.?
Answer:
The Statue of Liberty represents Libertas, the Roman Goddess of Liberty. She is holding a torch and a tablet with the date of the US Declaration of Independence. She is dressed in a robe, wears a crown, and has a broken chain at her feet. The Statue of Liberty was a gift from France to the United States. It was designed by the sculptor Frederic Auguste Bartholdi and built by Gustave Eiffel in 1886. The US designed and paid for the granite and concrete foundation .Over the next three decades, the statue slowly began to change color. Currently, the Statue of Liberty is green in color. How did this happen? The air and water reacted with the copper metal and resulted in oxidation. This oxidation created a layer of patina, a copper carbonate. This does not harm the statue and actually helps to protect the copper sheets below.
Explanation:
hope this helps!
~mina
Answer:
during the Revolutionary War, France became a close friend of Americans seeking freedom from Great Britain. To honor its friendship with America, France gave the U.S. a special gift: sculptor Frederic-Auguste Bartholdi's beautiful statue called Liberty Enlightening the World.
The Statue of Liberty arrived in New York Harbor on June 19, 1885. It came in 350 pieces packed into 214 crates. The statue was assembled on a pedestal base built by the United States. The 151-foot tall statue has become a worldwide symbol of freedom and democracy.
The Statue of Liberty's home is Bedloe's Island (renamed Liberty Island in 1956). From 1892 to 1943, “Lady Liberty" greeted over 12 million immigrants as they arrived on boats at the nearby Ellis Island Immigration Station.
Explanation:
hope this helps, have a good day :)
~evita
The planets orbit the sun because they are attracted by the sun's
A
heat
B
Light
С
gravity.
D
friction
Answer:
Gravity of sun
Explanation:
The Gravity force of the sun holds the planets and other planetary body in their certain orbits. The Earth and other planets circles the Sun due to the gravitational force of the Sun, much as the Moon orbits the Earth due to the gravitational pull of the planet Earth. Moon revolve around earth and same earth and other planet revolve around sun.
Dry air is 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.039% carbon dioxide so varying amounts of water vapor- depending on humidity. Some gases however strongly absorb infrared radiation and trap it in the atmosphere and can therefore result in elevated global temperatures. Therefore they are termed greenhouse gases. Which greenhouse gas have we observed a marked increase in atmospheric concentrations in the last 100 years?
A. methane (CH4)
B. carbon monoxide
C. carbon dioxide
D.ozone (03)
E. oxygen
F. nitrogen
G.water vapor (H20)
Answer:
C. Carbon dioxide
Explanation:
Carbon dioxide is one of the end-product of combustion reactions involving many fuels today.
With the rapid increase in urbanization and technological development, man demand for energy increased tremendously. The discovery of fossil fuels paved the way for the astronomical increase in the concentration of carbon dioxide in the atmosphere. The burning of fossil fuels like coal and oil invovles the process where the carbon atoms present in these fuels combine with oxygen in the air to make CO2. This has resulted in an increase in the concentration of atmospheric carbon dioxide (CO2).
The burning fossil fuels for electricity, industry, heat, and transportation are the major sources of the emossion of carbon dioxide.
Also, the cutting down of trees for paper production, building construction and for the establishment of settlements also increase the concentration of carbon dioxide in the atmosphere. Trees are help remove carbon dioxide from the atmosphere through the process of photosynthesis. However, when these trees are cut down, carbon dioxide accumulates in the atmosphere.
Which best describes valence electrons?
A. all the electrons in an atom
B. the electrons closest to the nucleus
C. the electrons in the outermost orbital
Which of the following equations is not balanced?
O 2NaHCO3 + H2SO4 -> Na2SO4 + 2H2O + CO2
O 2NO + O2 -> 2NO2
O Cu + 2AgNO3 -> Cu(NO3)2 + 2Ag
O 2Mg + O2 -> 2MgO
O CaCO3 -> CaO + CO2
Answer:
1 2NaHCO3+H2SO4->Na2SO4+2H2O+2CO2
2. Why is it difficult for us to go up in a mountain than go down?
A We are moving against gravity
B. We are pulled by the wind
C. We are moving towards gravity.
D. None of the above
Farth
help
Answer:
We are moving against gravity
How many grams are needed to prepare 1.50L of a 1.50M solution of NaNO3?
Answer:
jjjjyuuuuuuujyyllyyyyyyyyyyyyyy
calculate the relative molecular mass of Ma(HCO3)2
Answer:I believe you mean Mg(HCO3)2. Since I have never heard of the element MA. but if you are calculating using mg(HCO3)2 your molar mass/ molecular mass will be 146.3387
Explanation:
Si-4) AN= 14 AM= 28
e= n=
Answer:
have a good day
Explanation:
Which of these are the starting materials for cellular respiration?
a. Carbon dioxide and water
b. oxygen and sugar
c. Water and sugar
d. Water and oxygen
Answer:
the material will be water and oxygen
HELP ME!!! Is it right? Or wrong
Use the drop-down menus to answer the questions.
What would be a reasonable value for the vapor pressure of 1-heptene at 100°C?
Answer:
800 mm Hg
Explanation:
I took the class
Answer:
Use the drop-down menus to answer the questions.
What would be a reasonable value for the vapor pressure of 1-heptene at 100°C?
✔ 800 mm Hg
Which of the following statements is true regarding soundwaves?
a. Soundwaves travel as longitudinal or transverse waves depending on the medium they’re traveling through.
b. Soundwaves travel as transverse waves only.
c. Soundwaves travel as longitudinal or transverse waves depending on the temperature of the medium.
d. Soundwaves travel as longitudinal waves only.
Answer: Soundwaves travel as longitudinal or transverse waves depending on the temperature of the medium.
Explanation: i think its C
What is a control?
a variable or variables that you must keep constant during an experiment
a variable or variables that you manipulate during an experiment
a variable or variables for which you cannot account
a variable or variables that change with the independent variable
Answer:
a is the answer
please mark it brainliest
Answer:
A control variable (or scientific constant) in scientific experimentation is an experimental element which is constant and unchanged throughout the course of the investigation.
Explanation:
What must two objects have in order for gravitational force to act on them speed gorse mass orbit
Answer:
it is mass
Explanation:
I took the test
Take a look at the following chemical equation. Complete the following: balance the equation, explain how the conversation of matter supports your answer, and identify the type of reaction.
Answer:
2 NaOH + H₂SO₄ ⇒ Na₂SO₄ + H₂O
We can see that Lavoisier's law of conservation of matter is obeyed because we have the same type and amount of elements on both sides of the equation.
Neutralization reaction.
Explanation:
Let's consider the following unbalanced equation. This is a neutralization reaction.
NaOH + H₂SO₄ ⇒ Na₂SO₄ + H₂O
First, we will balance Na atoms by multiplying NaOH by 2.
2 NaOH + H₂SO₄ ⇒ Na₂SO₄ + H₂O
Then, we get the balanced equation by multiplying H₂O by 2.
2 NaOH + H₂SO₄ ⇒ Na₂SO₄ + H₂O
We can see that Lavoisier's law of conservation of matter is obeyed because we have the same type and amount of elements on both sides of the equation.
A gas has a volume of 10 L at 200 K and a pressure of 1.5 atm . What would the volume of the gas be at 300 K and 2atm of pressure ?
Answer:
hi
Explanation:
I'm just figuring this out what am I doing
HELP ME!!! Is it right? Or wrong
Your bond Line notation is missing a carbon.
can you help me with balancing equations
Answer:
Explanation:
number 5
S∨8 +8O∨2 =8SO∨2
Which is the most likely reason bacteria populations do not grow at exponential rates in nature?
A.
Conditions necessary for growth occur for a long time.
B.
Conditions necessary for growth occur only for a short time.
C.
The environment changes, and conditions are always favorable.
D.
The environment changes, and conditions are not always favorable.
Answer:
D
Explanation:
The environment always changes, and sometimes it can be a bad thing. Hope this helps! plz mark as brainliest!
How many non bonding electrons are on the central atom of a molecule of RnF4?
As NH4Cl dissolves in water, and cools the solution,
a. delta H is negative, and delta S is negative
b. delta H is positive, and delta S is negative
c. delta H is negative, and delta S is positive
d. delta H is positive, and delta S is positive
Answer:
d. delta H is positive, and delta S is positive
Explanation:
The process of dissolution of NH4Cl is:
NH4Cl(s) → NH4+(aq) + Cl-(aq)
As the solution is cooled, the process is absorbing energy, that means ΔH > 0. (ΔH < 0 when the heat is released).
As there are produced 2 ions from 1 solid molecule, the disorder is increasing and ΔS > 0
The right answer is:
d. delta H is positive, and delta S is positiveplease help me thanks
Answer:
diamond is the ans
Explanation:
hope it helped!!!
All gases at the same temperature have the same kinetic energy; however, this does not necessarily mean the gas molecules move at the same speed. At 25°C, which gas will have move the slowest?
Kr (molar mass=83.80 g/mol)
He (molar mass = 4.00 g/mol)
Ne (molar mass = 20.18 g/mol)
Ar (molar mass= 39.95 g/mol)
Answer:
Kr (molar mass=83.80 g/mol)
Explanation:
as it is the heaviest i think
Does respiratory happens in the lungs true or false?
Answer:
True
Explanation:
Answer:
True
Explanation:
the lungs is a part of respiratory system, so it is true; its main job is to remove Co2 from your body and bring in fresh air
which of the following chemical equation shows the formation of sodium hydroxide (NaOH) and hydrogen gas (H2)
from the reaction of solid sodium (Na) and water (H2O)
Answer:
Explanation: reaction is 2 Na(s) + 2 H2O (l) ⇒ 2 NaOH (aq) + H2(g)
Answer:look at the picture below
Explanation:
what is the difference between empire and kingdom
Answer:
An empire is a sovereign state consisting of of several countries or peoples subject towards the authority of a single person often an emperor or empress. A kingdom consists of land from the same region or area head under the nominal rule of king or queen. Hope this helped!! :D
Can You please solve the questions in the photo. Will give branliest.
Answer:
a.
Explanation:
please click the heart and rate excellent and brainleist to
The curved surface in the night sky on which stars appear to be fixed is called the
orbital path
celestial sphere
ecliptic plane
star chart
Answer:
Celestial Sphere
Explanation:
When you look at the night sky, the stars appear to be fixed to an apparently curved surface above the observer. This surface is called the celestial sphere.
plz brainiest, thx, hope this helped
At what temperature does 100g
fertiliser dissolve in 100ml of water
Answer:
please give me brainlist and follow
Explanation:
About 110 g . Explanation: Your tool of choice here will be the solubility graph for potassium nitrate, KNO3 , in water.