A hot metal plate at 150°C has been placed in air at room temperature. Which event would most likely take place over the next few minutes? Molecules in both the metal and the surrounding air will start moving at lower speeds. Molecules in both the metal and the surrounding air will start moving at higher speeds. The air molecules that are surrounding the metal will slow down, and the molecules in the metal will speed up. The air molecules that are surrounding the metal will speed up, and the molecules in the metal will slow down
Answer:
the air molecules that are surrounding the metal will speed up, and the molecules in the metal will slow down.
Can a chemical reaction of iron pipes form rust
Answer:

Explanation:
8. What is a compound?
A. a substance in which the atoms of three or more elements are combined together
B. an atom with more electrons than protons
C. a substance in which the atoms of two or more elements are combined together
D an atom with more neutrons than protons
Answer:
c
Explanation:
How can both the pitcher and the glass contain the same volume of iced tea?
Answer:
Because of their spaceeeee isss different
What is the method of harvesting trees during logging where a small number of
mature trees are left intact called ?it’s for a crossword puzzle and it consists of two words and together they should have 17 letters
A neutron collides with a nitrogen atom, resulting in a transmutation. Balance the equation. Superscript 1 Subscript 0 Baseline n + Superscript 14 Subscript 7 Baseline Upper N right arrow Superscript A Subscript Z Baseline X + Superscript 1 Subscript 1 Baseline Upper H Identify the unknown product by identifying the unknown letters. A is Z is X is
Answer:
14, 6, C
Explanation:
A neutron collides with a nitrogen atom, resulting in a transmutation. Therefore, A = 14, Z = 6 and X = C.
What is a neutron?A neutron is a subatomic particle that is present in the nucleus of an atom along with protons. It has no net electric charge, meaning it is electrically neutral, and it is slightly heavier than a proton.
The neutron was discovered in 1932 by the English physicist James Chadwick. The number of neutrons in an atom can vary, and isotopes of an element have different numbers of neutrons.
The balance equation is:
¹₀n + ¹⁴₇N ⇒ ¹⁴₆C + ₁¹H .
That is determined by numbering the electrons, protons, and neutrons on both sides.
The number of electrons on both sides is seven, and one electron is given by hydrogen on the product side, therefore, it lacks six electrons which matches carbon has atomic number 6 and as there are 15 neutrons and protons on the reactant side, and one is supplied by hydrogen rest 14 is of carbon isotope.
Thus, A = 14, Z = 6 and X = C.
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How many grams of carbon dioxide gas are in a 1.0 L balloon at STP?
0.509 g
1.96 g
22.4 g
44.0 g
Answer:
I'm pretty sure its 1.96g
In a unit circle, ø = pi radians What is the terminal point? A. (1,0) B. (0,-1) C. (0,1) D. (-1,0)
Answer:
(-1,0)
Explanation:
I really need your help!!!!! Correct answers only, look at the picture.
Answer:
Student 2. Sugar dissolves the fastest in hot liquids, which means immediately stirring it in a hot liquid and THEN adding a colder one will yield the best results.
Explanation:
This is actually how I was always taught to make sweet tea.
What are the units of molar mass?
O A Lg
B. g/mol
O C. g/L
D. mol/g
Answer:
The answer is B.units of molar mass are g/mol
Ms. Garcia's science students are studying scale models. For her science project, Sarah has decided to make a scale model of the solar system. Sarah conducted some research to help her with the diameters of the planets and Sun in her model and found the table you see above. If Sarah uses a marble for Earth that is 1cm in diameter how big would she make the Sun in diameter?
A) 1km
B) 1.9km
C) 100cm
D) 109cm
Answer:
D. 109 cm
hope this helped :)
The Sun in diameter would be 109cm
What movements are involved in the relationship between the Earth and Sun? The Sun rotates around the Earth as it revolves to cause day and night. The Sun revolves around the Earth as it rotates to cause day and night. The Earth rotates around the Sun as it revolves to cause day and night. The Earth revolves around the Sun as it rotates to cause day and night.
Answer:
the earth revolves around the sun as it rotates to cause day and night.
Explanation:
the rotation of the earth is what expose different areas to receive sunlight which causes daytime whilst, the other side is facing away which causes night time.
Answer:The Sun rotates around the Earth as it revolves to cause day and night. The Sun revolves around the Earth as it rotates to cause day and night.
Explanation:it just does
Which of the following would most likely be found in the outer cloud
region?
Answer:
there is no "following". if you can attach an image for me, ill be glad to help.
Explanation:
have a good day,
~evita
Add labels for mass extinction and adaptive radiation:
Answer:
Couldn't figure out how to edit the other one to attach the image, but here is it with the labels. Also put the same explanation down below so you don't have to go to the other if you wanted to look at it in conjunction with the image.
Explanation:
Mass extinctions are periods of time where the organisms are essentially wiped out in an extremely brief period of time. You can see how the species just drops off. Adaptive radiation occurs when there is a diversification of a group of organisms as evident by the rise in the number of marine animal groups shown by the bracketed area.
Long scratch marks that are left behind as evidence of glaciers are called
A. striations
B. cirques
C. fjords
D. roche moutonnees
Answer:
it is A striations
Explanation:
..........
Answer:
Striation
Explanation:
What is the difference between a rock and a mineral ? Plz only (1-2 sentence) thx sm!
A mineral is a naturally occurring inorganic element or compound having an orderly internal structure and characteristic chemical composition, crystal form, and physical properties. ... A rock is an aggregate of one or more minerals, or a body of undifferentiated mineral matter.
4 main parts of a flower Include the function of each pls help me
Answer:
Calyx or sepalsCorollaAndroeciumGynoeciumWhen two or more simple machines are combined they form a(n) ____.
A. Compound machine
B. Complex machine
C.intricate machine
D.inefficient machine
Answer:
A
Explanation:
A compound machine is a combination of two or more simple machines.
When(NH4)2SO4(aq) and Ba(NO3)2(aq) react
Answer:
1 (NH4)2SO4 + Ba(NO3)2 → NH4NO3 + BaSO4
2 (NH4)2SO4 + Ba(NO3)2 → Ba(SO4) + (NH4)(NO3)
Explanation:
Please help me I need to finish before my class is over
Number 3 is D
Number 4 is B
Number 5 is B
I think
Answer:
Number 5 is b is the correct answer
At what point will potential energy be the highest? The object has a mass of 5 kg
Explanation:
Given that,
The mass of the object, m = 5 kg
We need to find the maximum potential energy. When the height of the object is maximum it will have the maximum potential energy.
The attached figure shows that the maximum height is 25 m. The formula for the potential energy is given by :
[tex]P=mgh\\\\P=5\times 9.8\times 25\\\\P=1225\ J[/tex]
So, when the height is 25 m, the object will have the highest potential energy.
How many moles of helium are needed to fill a balloon to a volume of 6.3 L at 28 °C and 320
mmHg?
Round answer to 0.01 decimals
Answer:
.11 mol
Explanation:
Convert mmHg to atms by dividing by 760. Then multiply 6.3 by the atms and divide by .08206*(273+28) to get mol
When this gas is burned what will happen to the surface of this type of star?
The principal source of sulfur on earth is deposits of free sulfur occurring mainly in volcanically Active regions. The offer was initially formed by the reaction between the two volcanic vapors S02 and H2S to form H2O(I) and S8(s). What volume of each gas, at 0.961 atm and 22°C, what is needed to form a sulfur deposit of 4.50×10 to the power of 5 kg On the slopes of a volcano in Hawaii?
Answer:
1.18x10⁸L of SO₂ and 2.36x10⁸L of H₂S
Explanation:
The balanced reaction is:
8SO₂(g) + 16H₂S(g) → 16H₂O(l) + 3S₈(s)
To solve this question we must find the moles of S₈ in 4.50x10⁵kg. With these moles and the reaction we can find the moles of SO₂ needed to react (Twice these moles = Moles Of H₂S needed). Using PV = nRT we can find the volume of the gas required:
Moles S₈ - molar mass: 256.52g/mol-
4.50x10⁵kg = 4.50x10⁸g * (1mol / 256.52g) =
1.75x10⁶ moles S₈
Moles SO₂:
1.75x10⁶ moles S₈ * (8mol SO₂ / 3mol S₈) = 4.68x10⁶ moles SO₂
Moles H₂S:
4.68x10⁶ moles SO₂ * 2 = 9.36x10⁶ moles H₂S
The volume could be obtained as follows:
PV = nRT
V = nRT / P
V is volume in liters
n are moles: 4.68x10⁶ moles SO₂ and 9.36x10⁶ moles H₂S
R is gas constant = 0.082atmL/molK
T is absolute temperature = 22°C + 273.15 = 295.15K
P is pressure = 0.961atm
Replacing:
Volume SO₂ and H₂S:
4.68x10⁶ moles * 0.082atmL/molK * 295.15K / 0.961atm =
1.18x10⁸L of SO₂ and:9.36x10⁶ moles H₂S * 0.082atmL/molK * 295.15K / 0.961atm =
2.36x10⁸L of H₂SFill in the blank: After a chemical reaction, the atoms of the reactant _____ to form new products.
change
stay the same
rearrange
add new atoms
DO NOT COMMENT IF YOUR NOT GOING TO HELP ITS REALLY ANNOYING :/
Answer:
50 mL; 7
Explanation:
By looking at the graph, the boundary point where the solution turns from acidic to basic appears at approximately 50 mL.
Because this is a titration between a strong acid and strong base, the pH of the equivalence point is always 7 (aka neutral).
The OAC simulation showed that warm air over a cold current:
Is not affected by the water
Receives energy from the water
Transfers energy to the water
(the sim isnt needed)
Answer:
received energy from water
PLZ HELP IM CONFUSED
How many moles of methanol would be created if you started the reaction with 36.7 g of hydrogen gas?
(Round to 1 decimal place.)
Molar Masses:
H2= 202 g/mol
CO = 28.01 g/mol
CH3OH = 32.04 g.mol
Answer:
9.1 mol
Explanation:
The balanced chemical equation of the reaction is:
CO (g) + 2H2 (g) → CH3OH (l)
According to the above balanced equation, 2 moles of hydrogen gas (H2) are needed to produce 1 mole of methanol (CH3OH).
To convert 36.7 g of hydrogen gas to moles, we use the formula;
mole = mass/molar mass
Molar mass of H2 = 2.02g/mol
mole = 36.7/2.02
mole = 18.17mol
This means that if;
2 moles of H2 reacts to produce 1 mole of CH3OH
18.17mol of H2 will react to produce;
18.17 × 1 / 2
= 18.17/2
= 9.085
Approximately to 1 d.p = 9.1 mol of methanol (CH3OH).
3. Lemon juice is an acid. What ion is present in lemon juice that
makes it an acid?
Lemon is an acidic fruit with a pH ranging 2 to 3. The acid in lemons are citric acid which makes lemon tart, which is Vitamin C.
One of the leading contributors to climate change is the burning of fossil fuels such as natural gas and oil. Name four things people use every day that directly or indirectly consume fossil fuels. Explain your reasoning.
Answer:cars
Explanation:bc it uses oil
Cars and trucks, coal-fired power plants, airplanes, large industrial operations are the four things people use every day that directly or indirectly consume fossil fuels.
What are fossil fuels?A fossil fuel is a hydrocarbon containing substance that is recovered and used as fuel that naturally forms in the Earth's crust from the remains of dead plants and animals. Fossil fuels include coal, oil, and natural gas.
A general name for non-renewable energy sources such crude oil, petroleum products, natural gas, derived gas, coal, coal products, and non-renewable wastes is "fossil fuel."
These fuels come from plants and animals that lived in the distant past of the earth's history, such as millions of years ago.
Therefore, fossil fuels can be burned to produce energy, operate engines, or offer direct heat.
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