Which types of reactions would result in a color change?

Answers

Answer 1

Answer:

reversible redox reaction

Explanation:


Related Questions

PLEASE HELP!!
A model stands on a scale and finds her weight to be 105 pounds. If
the pressure exerted by her feet on the scale is 2.16 pounds per
square inch, what is the area of her feet in cubic centimeters?
__cm2

Answers

Answer:

313.5cm²

Explanation:

Given parameters:

Weight of model  = 105pounds

Pressure applied on the scale by model = 2.16pounds per square inch

Unknown:

Area of her feet in cm² = ?

Solution:

Pressure is the force per unit area;

     Pressure  = [tex]\frac{Force}{Area}[/tex]

Input the parameters and solve;

                2.16  = [tex]\frac{105}{Area}[/tex]

       105  = 2.16 x Area

        Area = [tex]\frac{105}{2.16}[/tex]   = 48.6in²

We need now to convert the in² to cm²

          1in² = 6.45cm²

        48.6in² = 48.6 x 6.45  = 313.5cm²

PE = mgh, solve for m

Answers

Answer:

P.E. = mgh, where m is the mass in kilograms,

Answer:

[tex]m = \frac{PE}{gh} [/tex]

Explanation:

[tex]if \: PE = mgh \\ then \to \\ m = \frac{PE}{gh} [/tex]

♨Rage♨

What is the density of an object that has a mass of 62.4 grams and a volume of 7.6 cm 3 ?

Answers

Answer:

d≈8.21 g/cm^3

Explanation:
The density can be found by dividing the mass by the volume.
d=m/v
The mass is 62.4 grams and the volume is 7.6 cubic centimeters.
m=62.4 g
v=7.6 cm^3
Substitute the values into the formula.
d=62.4 g/7.6 cm^3
Divide
d= 8.210526315789474 g/cm^3
Round to the nearest hundredth. The 0 in the thousandth place tells us to leave the 1 in the hundredth place.
d≈ 8.21 g/cm^3

The density of the object is about 8.21 grams per cubic centimeter.



The heart is a large
________________
that pumps the blood
throughout the body.

Answers

Muscular organ that pumps blood throughout the body

Define the concept of Energy in your own words

Answers

Answer:

In general, the word energy refers to a concept that can be paraphrased as "the potential for causing changes", and therefore one can say that energy is the cause of any change. The most common definition of energy is the work that a certain force (gravitational, electromagnetic, etc) can do. Due to a variety of forces, energy has many different forms (gravitational, electric, heat, etc.) that can be grouped into two major categories: kinetic energy and potential energy. According to this definition, energy has the same units as work; a force applied through a distance. The SI unit of energy, the joule, equals one newton applied through one meter, for example. Energy has no direction in space, and is therefore considered a scalar quantity. Energy is a conserved quantity, meaning that it cannot be created or destroyed, but only converted from one form into another. Thus, the total energy of the universe always remains constant. One form of energy can be readily transformed into another; for instance, a battery converts chemical energy into electrical energy.

Explanation:

Explain why warm air temperature has lower air pressure than cold air?

Answers

Answer:

Differences in temperature cause differences in air density. Warmer air is less dense than cold, which is why warm air tends to rise and cold air sinks.

temparature affects particles. warm particles are more spread out.

Explanation:

. Being acted on by gravity, colder, denser air weighs more and exerts greater pressure per unit area.

In a longitudinal wave, particle displacement is

Answers

from google, so I think the answer to that question is the second one

Which describes a homogeneous mixture?

A solvent dissolves in a solute to make a solution.
A solute dissolves in a solvent to make a solution.
A solution dissolves in a solute to make a solvent.
A solution dissolves in a solvent to make a solute.

Answers

Answer: ik im late but I got b

Explanation:

A homogeneous mixture can be described as the solute uniformly dissolving in a solvent to make a solution. Therefore, option (B) is correct.

What is a homogeneous mixture?

A mixture can be described as a combination of two or more substances that are not chemically combined with each other. Mixtures can be categorized into two kinds homogeneous mixtures and heterogeneous mixtures.

A homogeneous mixture can be defined as one whose whole composition is uniform throughout the entire mixture. It can be the type of mixture where the entire composition is constant throughout that make up the mixture and is distributed uniformly.

A homogeneous mixture can be described as a gaseous, liquid, or solid mixture that has equal proportions of its components throughout the sample. In a homogeneous mixture, there is only one phase of matter observed.

Some examples of Homogeneous Mixtures are Air Rainwater, Vinegar, Dishwashing detergent, Steel, Sugar water, a Cup of Coffee, etc.

Learn more about homogeneous mixtures, here:

https://brainly.com/question/24898889

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What is the rule of zero charge?

Answers

Answer:

The nonmetal atoms accept electrons and form ions with a negative charge, called anions. When an ionic compound forms, the total charge on the atoms adds up to zero. This is known as the rule of zero charge.

Explanation:

Which of the following has a higher electronegativity oxygen or selenium?

Answers

Answer: Oxygen

Explanation: Oxygen has more ionisation energy and Oxygen has a small size which makes it more electronegative.

The millions of fossils that scientists have collected are called the fossil __.

Answers

Answer:

record

Explanation:

(b) Define, in terms of oxidation state, the Oxidizing agent
a substance which gains oxygen
a substance whis lose hydrogen
a substance which experiences a decrease in oxidation state
a substance which experiences an increase in oxidation state​

Answers

Answer: a substance whis lose hydrogen

Explanation:

Atomic number is equal to the number of electrons in an atom?.

Answers

Answer:

true I think not sure

Explanation:

Ionization energy is the energy needed to remove an
electron. How does the atomic radius relate to
ionization energy?

Answers

Answer: here u go:

Explanation:

The smaller the radius, the higher the ionization energy. This is because the electrons are being held in closer to the protons, which have opposing charges and therefore hold on to them, in an atom with a small radius.

Define a force.......

Answers

Answer:

Gravitational Force.

Gravitation is the agent that gives weight to objects with mass and causes them to fall on the ground when dropped.

Answer:

A force is the strength or energy as an attribute of physical action or movement.

Explanation:

In smaller words, a force is a form of energy caused from a push or a pull on an object. A force happens when two objects interact with each other. For example, when you throw a ball you are using force.

Hopefully this helps im sorry if i got it wrong im kinda dumb... XD

Someone drops a book on the floor, and it makes a loud noise. At that time, you turn to look at the person who dropped the book. The loud noise is an example of a…

A. Hydrotropism

B. Stimulus

C. Response

D. Phototropism

Answers

Answer: Stimulus

Explanation: The definition of Stimulus is "a thing or event that evokes a specific functional reaction in an organ or tissue," according to the Oxford Dictionary. So the book dropping and causing a noise is an example of a stimulus.

1. True or False? The scientific method is defined as a method of research
in which a problem is identified, data is gathered, and a hypothesis is
created based off the data, then the hypothesis is tested.

Answers

Answer:

true

Explanation:

please mark BRAINLIEST

What advances in technology helped usher in the scientific revolution? Choose the best answer.



1.The landing on the Moon by Apollo brought about the scientific revolution.


2.Discoveries by scholars in the Catholic Church revolutionized scientific knowledge.


3.The discoveries by ancient Greek, Muslim and Chinese scientists.


4.The discovery of optics gave scientists instruments such as microscopes and telescopes.

Answers

Answer:

The discovery of optics gave scientists instruments such as microscopes and telescopes.

Explanation:

The period between the 16th-8th century was called the period of the scientific revolution. At this time, the foundations  of our modern science was laid.

One of the characteristic of this period was the emphasis on the scientific method which upheld results from reproducible experiments.

Nicolaus Copernicus, Francis Bacon and Isaac Newton were leading names in this period.

It was within this period that the discovery of optics gave scientists instruments such as microscopes and telescopes and scientific  examination of the celestial bodies was launched.

IUPAC name for C3H7​

Answers

Answer:

propyl

Explanation:

......:)

..;) .........

Select the correct answer

Which statement best supports the idea that water conservation is important for human societies?

OA Once humans use water, it cannot be reused ever again,

OB. Only about 1% of the freshwater on Earth is easily accessible.

OC Water is constantly being lost from the hydrosphere

OD. Most land animals use salt water instead of freshwater.

Answers

Answer:

Only about 1% of the freshwater on Earth is easily accessible.

Explanation:

Freshwater accounts for a minimal proportion of water resources on planet earth. About 70 percent of the world surface area  is covered by water, but only  about 2.5 percent of this mass of water is fresh. The remaining are marine or salt water. Amazingly, just about 1 percent of this  freshwater is easily accessible. The other 1.5% is trapped in glaciers and snowfields.

This underscore the need for water conservation on the planet since fresh water is a scarce resource and people living in many areas have no access to fresh water.

which element would have properties most like arsenic (As)? Te Ge P Se

Answers

Answer:

P

Explanation:

mL? PLEASEEE HELP
What is the answer

Answers

22.5 milliliters :)))
22.5 ml is the answer I think

Burning is a type of_________reaction.

O replacement
O decomposition
O synthesis
O combustion

Answers

Answer:

Combustion

Explanation:

Happy Halloween!

CAN SOMEONE HELP ME!!!!!!!!!!!!!

Answers

Answer:

5 g/cm^3

Explanation:

Density = mass / volume

What is involved in weathering?

Answers

Answer:

the answer is water.Hope this helps

Using the formula M=dx v, Calculate the mass of a liquid with a density of
17.5 g/mL and a volume of 7mL.

Answers

Answer:

The answer is 122.5 g

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question

volume = 7 mL

density = 17.5 g/mL

We have

mass = 17.5 × 7

We have the final answer as

122.5 g

Hope this helps you

Sugar is added to iced tea and the contents are stirred until all of the sugar dissolves. How would the tea now be classified?

Answers

By concentrating the mixes of substances

The reaction in which methane is burned, CH4 +202 --> 2H20 + CO2, is an example of a
combustion reaction
O synthesis reaction
O decomposition reaction
O precipitate reaction

Answers

Answer: Combustion

Explanation:

Methane gas or natural gas is the hydrocarbon that reacts with oxygen as shown below: CH4 + 2O2 → CO2 + 2H2O There are two types of combustion reactions: complete and incomplete combustion. Therefore there are four products, carbon dioxide, water, carbon, and carbon monoxide.

Record the length of the object shown.

Answers

Maybe like 7 1/2 ::::::::::::::: oh

Answer: 7.26 mm

I did the test already.

What element would have this electron configuration:
1s22s22p5

Answers

Answer : fluorine








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