What are some examples of HIGH resistance? Question 2 options:
long wire, wide wire, more resistors
wide wire, short wire, less resistors
long wire, narrow wire, more resistors
narrow wire, less resistors, long wire
(PLEASE HURRY! I NEED TO FINISH THIS QUIZ)

Answer:

a

Explanation:

uh process of elimination

Temperature change, phase change to liquid or gas are all physical changes not chemical reactions. A color change indicates a chemical reaction has taken place.

Chemical changes are taking place by the breaking or making of chemical bonds. It results in the formation of a new product which is having different properties than the initial substances.

Physical changes does not involve any change in chemical bond. Phase changes, change in size, shape, conductivity, solubility etc. are physical changes. A change in temperature phase conversion into gas or liquid are all physical changes.

A change in color indicates that a new product is formed there. For  example reddish brown rust is iron oxide formed by the reaction of Fe with oxygen. Therefore, option c is correct.

Find more on chemical changes:

https://brainly.com/question/2591189

#SPJ6

Answer:D

Explanation:

Answer:

C) adding 16 oz. of water to the marinating liquid

Explanation:

Adding 16 oz. water to the marinating liquid would decrease the concentration of the marinating liquid and slow down the rate of reaction. The other answer choices would increase the rate of reaction.

Answer:

Temperature

Explanation:

It's called temperature.

This is because, in any substance an increase in temperature means that the particles on the average will move with greater speeds, or that they have greater kinetic energy while a decrease in temperature means that the particles on the average will move with lesser speeds, or that they have lesser kinetic energy.

Answer:

The answer is crystallisation

Answer:

C. The enthalpy of a reaction is the sum of the enthalpies of intermediate reactions.

Explanation:

The heat of any reaction  ΔH∘f  for a specific reaction is equal to the sum of the heats of reaction for any set of reactions which in sum are equivalent to the overall reaction.

Answer:

kid poop i only did this for no reason

Explanation:

Answer:

When the temperature of an object increases, the average kinetic energy of its particles increases. When the average kinetic energy of its particles increases, the object's thermal energy increases. Therefore, the thermal energy of an object increases as its temperature increases.

Explanation:

BTW I GOT THE ANSWER FROM KRISTINA

The thermal energy of a system is the amount of heat energy in it.

One way to change thermal energy is by alter the system by introducing a new object to the system.

The thermal energy of a system is calculated using:

[tex]E = \frac 12 mc\theta[/tex]

Assume the mass of the system remains unchanged.

When an object is introduced to the system, the thermal energy becomes:

[tex]E_2 = \frac 12 mc(\theta + \alpha)[/tex]

Where:

[tex]\alpha \ne 0[/tex] --- the temperature of the object.

Expand:

[tex]E_2 = \frac 12 mc(\theta) + \frac 12 mc (\alpha)[/tex]

Substitute: [tex]E = \frac 12 mc\theta[/tex]

[tex]E_2 = E + \frac 12 mc (\alpha)[/tex]

This means that the thermal energy of the system will change by the thermal energy of the object that is being introduced to the system.

Hence, one way the thermal energy can be changed is to introduce a new object (or matter).

Read more about thermal energy at:

https://brainly.com/question/18989562

Answer:

lewis dot diagram for cuo is a bulletin dot above cu

Explanation:

Molecular Formula : CuO

name : Copper Oxide or cupric oxide

Answer:

dilute solution . . . . . . .

Explanation:

. .

Answer:

dilute soloution

Explanation:

dilute soloution as it dissolves

Answer:

to get more points and to i have no clue what that answer is

Answer:

R is in the middle of March and April, feed it nuts right?? I'm reading this because I needed points to do my math homework.

Explanation:

Answer:

I believe you said that I would get brainlest if I answer!

Explanation:

A translucent material scatters the light that passes through it. You can usually see something behind a translucent object, but the details are blurred. Wax paper and frosted glass are translucent materials. A material that reflects or absorbs all of the light that strikes it is called opaque.

Answer:

0.00031311017345051

Answer:

Calcium carbonate is a dietary supplement used when the amount of calcium taken in the diet is not enough. Calcium is needed by the body for healthy bones, muscles, nervous system, and heart. Calcium carbonate also is used as an antacid to relieve heartburn, acid indigestion etc.

... yes I copied this from the internet, but hope it helps !

Answer:

Explanation:

halogen group

Electron affinities are negative numbers because energy is released. The elements of the halogen group (Group 17) gain electrons most readily, as can be seen from their large negative electron affinitie

Answer:

tbh i liked how u ghosted me

Explanation:

Answer:

Matter says that the amount of matter stays the same, even when matter changes form. Sometimes it may seem that matter disappears during a science experiment, but this law tells us that matter cannot magically appear or disappear, it simply changes from one form to another.

Explanation:

brainliest?

Answer: Hope this helps:)

The Law of Conservation of Mass dates from Antoine Lavoisier's 1789 discovery that mass is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction. The law of conservation of matter states that in any given system that is closed to the transfer of matter, the amount of matter in the system stays constant. The law of conservation of matter says that in chemical reactions, the total mass of the products must equal the total mass of the reactants. French chemist A. Lavoisier laid the foundation to the scientific investigation of matter by describing that substances react by following certain laws. These laws are called the laws of chemical combination. Matter says that the amount of matter stays the same, even when matter changes form. Sometimes it may seem that matter disappears during a science experiment, but this law tells us that matter cannot magically appear or disappear, it simply changes from one form to another. Matter can change form through physical and chemical changes, but through any of these changes, the matter is conserved. The same amount of matter exists before and after the change—none is created or destroyed. This concept is called the Law of Conservation of Mass.

Answer:

160N

Explanation:

The force required to accelerate the two cars can be calculated thus:

F = m × a

Where;

F = force (Newton)

m = mass (kg)

a = acceleration (m/s²)

However, according to the question, a 50kg car is pulling a 30kg car, which means that the mass of the two cars is 50kg + 30kg = 80kg.

a = 2m/s²

F = ma

F = 80 × 2

F = 160N

Answer:

3kcl+ 02

Explanation:

in this way we can balance the chemical equation

Mass of water vapor = 193 g

Given

435 kJ of heat are released

Required

mass of water vapor

Solution

The heat to change the phase can be formulated :

Q = mLf (melting/freezing)

Q = mLv (vaporization/condensation)

Lv for water = 2256 kJ/kg or 2256 J/g or 40.7 kJ/mol

So the mass of water vapor :

[tex]\tt m=\dfrac{Q}{Lv}\\\\m=\dfrac{435000~J}{2256~J/g}\\\\m=192.8\approx 193~g[/tex]

Answer:

A Punnet Square...the second I am not sure.

Explanation:

Unfortunately the second could be many things. You'd have to have more background information.

Answer:

PUNNETT....,MAKE SURE U HAVE 2 T,s

Explanation:

punnett and cross

Answer:

option A.car tyres be

Explanation:

Answer:

well i would say yes because how the factory made the air bad and how they all were fighting just about a tree

Explanation:

Answer: LOL XD no because of CO/VID

Explanation: BRAINLIEST PLS LOL

Answer:

have a good day

Explanation:

1.The Sun, Earth, and Moon are aligned with the Earth in the middle and the Moon furthest away from the Sun.

Answer:

A

Explanation:

because the atomic radius reduced by loosing one energy level leading to a positive ion in the resulting ion

The study of chemicals and their bond is called chemistry.

The correct answer is A.

The metals have the property to lose electrons to become stable compounds.

In magnesium, the total number of electrons is 12. In a valance shell, they have 2 electrons.

when they lose or donate the two electrons to the other. The outer shell will be empty and the force of the nucleus remains in the inner shell.

The loss of electrons leads to a decrease in the size of an atom and form positive ions.

Hence, the correct answer is A that is a Positive ion with a smaller radius.

For more information, refer to the link:-

https://brainly.com/question/12985618

Answer:

the ice has reached its melting point

the water has reached its freezing point

the whatever that is has reached its cooling point I guess

Answer:A chemical reaction?

Explanation:let me be

Answer:

HKOB

Explanation:

hope it helps

Answer:

Yes they can

Explanation:

But they need pretestino fromadverse temperatures and they need nutrients and also oxygen around the roots

Explanation:

[tex](.0000360 gAu} )\frac{1molAu}{196.96gAu}= ? mol Au[/tex]

Answer:

8

Explain

H: Ignoring the coefficient, we know there's 5+3=8 atoms