It has been raining for several days. Overnight, the temperature dropped below the freezing point. Travel is now hazardous due to ice forming on the roadways.
This is an example-

Answers

Answer 1

Answer: physical change

Explanation:


Related Questions

Where is nature can you find isomers?

11 points!!!

Answers

Answer:

Isomers are defined as the molecules or polyatomic ions which have similar molecular formula but different in arrangements of atoms.

Isomers can be found  in food items carrying glucose (C6H12O6), galactose or fructose,  they all have the same chemical formula but differ structurally and chemically.

Glucose is found in vegetables and milk, galactose found in dairy products, and Fructose is found in fruit juices.

Which of these statements accurately describes monomers?

Monomers are macromolecules.
Monomers contain double bonds.
Monomers are made of repeating units.
Monomers contain bonds between metals.

Answers

Answer:

Monomers contain bonds between metals

Answer:

B: Monomers contain double bonds

Explanation:

I got it right on Edge

What is the name of this compound Fe₃N₂?

Answers

Answer:

it is (Ferric Nitride)

Pls help me ASAP thank you!!

Answers

Sorry i cant even read that

What is the formula to calculate speed?
O S= t/d
O S=d/t
OS=dxt
O S=txd

Answers

Answer:

the formula to calculate speed is d/t.

:(
Write out the equation for combustion of solid calcium and balance the equation

Answers

use Socratic for the answer hope it hlo elf

Which metal pan should the chef choose because it undergoes the largest temperature change for a given input of energy?
The chef should choose the copper pan.

The chef should choose the iron pan.

The chef should choose the aluminum pan.

The chef can choose any of the three pans, because all three pans will undergo the same amount of temperature change.

Answers

Answer:

If the chef is in a hurry we would assume he would want the pan to heat up so copper

Explanation:

Answer:

A. The chef should choose the copper pan.

Explanation:

Copper conducts heat well because its atoms contain only one free valence electrons in the outer shell. Elements with a low number of valence electrons transfer heat the best, and copper has only one. Valence electrons move about freely.

Good luck on your test (Or whatever it is) !!

What is the process called when a solid becomes a liquid?
melting
freezing
condensing
boiling

Answers

the answer is melting

Answer: melting :)

Explanation:

A bike rider approaches a hill with a speed of 8.5 m/s. The total mass of the bike and the rider is 85 kg. Find the kinetic energy of the bike and the rider. If the rider coasts up the hill calculate the height at which the bike will come to a stop. (h=PE/mgh)

Please help me!! this is due in like 20 minutes!!

Answers

KE=3070.625 J

Height = 3.686 m

Further explanation

mass of bike+rider=85 kg

velocity = 8.5 m/s

[tex]\tt KE=\dfrac{1}{2}mv^2\\\\KE=\dfrac{1}{2}\times 85\times 8.5^2\\\\KE=3070.625~J[/tex]

Conservation of energy :

(KE+PE)₁ (downhill) = (KE+PE)₂ (up the hill)

PE₁=0⇒h=0

KE₂=0⇒v=0(stop), so equation becomes :

KE₁=PE₂

[tex]\tt KE_1=3070.625\\\\KE_1=mgh_2\\\\3070.625=85\times 9.8\times h\Rightarrow h=3.686~m[/tex]

In what way does the shape of a molecule affect how the molecule is
involved with living systems?
OA. It determines the weight of the molecule.
OB. It determines how the molecule functions.
O C. It determines oxidation states present in the molecule.
OD. It determines what elements are in the molecule.

Answers

Answer:

B

Explanation:

I'm not 100% sure, but B seems like the most likely answer because the shape of a molecule usually is a major factor in how molecules interact with each other.

I hope that helps.

PLEASE ASAP
A substance that is corrosive ___.
A. Changes Color
B. is slippery
C. Eats away at other materials
D. Tastes bitter

Answers

Choice c - eats away other materials

Question 16 (6 points)
Match the following elements with the correct answers.
Column A
Column B
a Francium
1.
Which element has the largest electronegativity?
2
Which element has the biggest atomic radius?
b. Nonmetals
3.
C Fluorine
4
From which types of elements is it more difficult
to pull away a valence electron?
Which type of elements has lower ionization
energy?
What element has an oxidation number of +3?
d. Helium
5.
e. Metals
6.
What element has 2 valence electrons?
f. Aluminum

Answers

Answer:

1.) Fluorine

2.) Francium

3.) Nonmetals

4.) Metals

5.) Aluminum

6.) Helium

Explanation:

7.62 x 10^23 molecules of CO2 are contained in a tire. How large is the tire (in liters)?​

Answers

Answer: 7.62e+23

Explanation:

can someone help with with some answers?! :-) please! i need this done in a hour :-( help!!

Answers

What’s the question?

What do you think causes a lunar eclipse? (Use your knowledge of solar eclipses and feel free to run the Gizmo to help you.)

Answers

Moon reflects the light frim the sun, thats why we are able to see it and it shines in the night. But, we know that Earth revolves around Sun and Moon revolves around Earth. During this revolution, Earth and Moon comes in a position when Earth is in the middle of the Moon and Sun. So, it blocks the light of Sun frim reaching Moon. Hence, we see no reflection and it causes Lunar eclipse.

Answer:

A total lunar eclipse occurs when the moon and the sun are on exact opposite sides of Earth. Although the moon is in Earth's shadow, some sunlight reaches the moon. The sunlight passes through Earth's atmosphere, which causes Earth's atmosphere to filter out most of the blue light.

Explanation:

Lattice energy is an estimate of the bond
conductivity
group
length
strength

Answers

Answer:

Lattice energy is an estimate of the bond strength.

Lattice is an estimate of strength

Can someone answer this pleasee it’s free 15 points

Answers

the answer is C

have a great day :)

I don’t know

but thank u for the points

I need points hehe

Did you know?

Hawaii is the Widest State in America!!!!!!!

Combine the following ions to create neutral compounds Y3+ and OH-

Answers

Answer:

Y(OH)₃

Explanation:

Given ions:

                  Y³⁺      OH⁻

To find a neutral compound that conforms with the formation of the given ions;

We us the exchange of valency approach to solve this problem. The valency will form the combining power of the ions for the combination.

                                    Y³⁺      OH⁻

Combining power        3           1

Exchange of valency    1            3

 Now the compound is        Y(OH)₃

Which of the following are evidences of continental drift?

A similar fossils found in several continents
B similar rocks existed in different continents
C puzzle fit of several continents
D All of the above

Answers

The answer would be A

Please help! Its for chem

Answers

Answer:

can you give me more info

Explanation:

i think it d or c

i got charts to help

The ionization energies for removing successive electrons from sodium are 496 kJ/mol, 4562 kJ/mol, 6912 kJ/mol, and 9544 kJ/mol. The great jump in ionization energy after the first electron is removed indicates that

Answers

Answer:

The great jump in ionization energy indicates that the most stable form of the sodium atom- the noble gas configuration, was reached after the removal of the first electron.

Explanation:

Sodium atom has an electronic configuration of 2,8,1. After the first electron has been removed from a sodium atom, the ion formed now has a noble gas configuration which assigns stability to it.

Noble gases have very high ionization energy due to the stability conferred on the by virtue of their completely filled outermost shells. They do not have need to lose electrons to attain stability. Also, because they have the most protons of their period, their atomic radius is reduced as electrons are pulled into the nucleus.

So, the great jump in ionization energy indicates that the most stable form of the sodium atom- the noble gas configuration, was reached after the removal of the first electron.

The great jump in ionization energy after the first electron is removed indicates that the next electron is removed from an inner shell and not from the valence shell.

The ionization energy is defined as the energy required to remove an electron from an atom. There are ionization energies in an atom as there are electrons in the atom.

For sodium atom, five ionization energies are shown which are; 496 kJ/mol, 4562 kJ/mol, 6912 kJ/mol, and 9544 kJ/mol. The great jump in ionization energy after the first electron is removed indicates that the next electron is removed from an inner shell and not from the valence shell.

Learn more: https://brainly.com/question/6284546

aluminum hydroxide + sodium nitrate reaction type

Answers

Answer:

.

Explanation:

Which energy transformation produces electricity and is least likely to negatively impact the environment?

A) Generating electricity from a natural gas-fired power plant
B) Generating electricity from a coal-fired power plant
C) Generating electricity from a nuclear power plant
D) Generating electricity from a solar panel system

Answers

Hello!

The answer to this question is: D) Generating electricity from a solar panel system.

Thank you for asking this question!

It would be greatly appreciated if you thanked me and marked me as the brainliest!

Have an amazing day.

The energy transformation which produces electricity and is least likely to

negatively impact the environment is generating electricity from a solar

panel system.

Generating electricity from solar panel involves the use of solar energy from

the sun to generate electricity . This type of energy doesn't emit any type of

harmful radiation or release toxic compounds into the atmosphere which

makes it the least likely to negatively impact the environment.

Other options emit any type of harmful radiation or release toxic compounds

into the atmosphere which makes option D the most appropriate.

Read more on https://brainly.com/question/11867576

The elements mercury and bromine are both liquids at room temperature, but mercury is considered a metal, and bromine is considered a non-metal. How can that be? Explain using properties you know of.

Answers

Answer:

At room temperature, mercury and bromine are of fluid consistency, it is because their melting or melting temperature is very low, so low that it reaches room temperature.

Compared to mercury and other metals, the more traditional metals have much higher melting temperatures.

On the other hand, bromine is not a metal, since it does not have the ability to oxidize with the presence of oxygen and also does not give up electrons.

Explanation:

Mercury in the periodic table is Hg, and bromine is Br

what is C2H8 ? please hurry
(CH4=methane)
(C2H2=acetylene)

Answers

Answer:

Carbon carbon | C2H8 - PubChem.

Explanation:

Brainliest plz :)

Answer:

Carbon carbon | C2H8

Explanation:

happy to help

How many bonds does silicon tetrachloride, SiCl4 have?

Answers

It’s has 4 bonds I believe! I hope this helped :)

Where is the Oort cloud located?
in the innermost region of the solar system, closest to the Sun
in the outermost region of the solar system, beyond Neptune
in the region between the Kuiper belt and the scattered disk
in the region beyond Neptune, but closer to the Sun than the Kuiper belt

Answers

Answer:

Option B - in the outermost region of the solar system, beyond Neptune.

Explanation:

The Oort Cloud is an extended shell of icy objects that exist in the outermost reaches of the solar system.

Answer:

b

Explanation:

i took the test

Is a tooth made out of matter or not matter?

Answers

Human teeth are made up of four different types of tissues.

What is the first stroke of a 4 stroke cycle?
A. intake
B. exhaust
C. compression
D. power

Answers

Answer:

Intake

Explanation:

It is the very first thing you do.

Figure 4: Four-Stroke Cycle In the first stroke, also known as the Intake Stroke or Induction, the piston travels from the top dead centre (TDC) to the bottom dead centre (BDC) with the intake valve open and exhaust valve closed. This creates a vacuum due to the increase in volume in the combustion chamber.

The stroke cycle is used in the operating cycle of gasoline or petroleum engines. The first stroke in the 4 stroke cycle is intake. Hence, option A is correct.

What is stroke cycle ?

An internal combustion (IC) engine is referred to as having four strokes  when the piston is rotating the crankshaft. A stroke refers to the whole journey of the piston along the cylinder, in either direction.

In gasoline/petrol engines, a four-stroke cycle is used. The four strokes are intake (1), compression (2), power (3), and exhaust (4). The intake port is on the right's blue side, and the exhaust port is on the left's brown side.

The piston head is surrounded by a thin sleeve called the cylinder wall, which provides a space for the combustion of fuel and the production of mechanical energy. Therefore, the first stroke of a 4 stroke cycle is intake.

Find more on stroke cycle:

https://brainly.com/question/13164231

#SPJ2

What causes an earthquake to happen?
A. O Rocks deform slowly as a result of physical stress.
B. O Rocks along a fault move suddenly and release energy.
C. Large amounts of rock suddenly shift downward when large holes form
underground
D. O Energy is transferred to rock layers from convection currents in the oceans
and the atmosphere.

Answers

The answer is is is is is d
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