Chemistry High School

Please help me out this is a test.


The imaje shows a plate baundary. Arrows have been added to indicate the movement if the plates.

Please Help Me Out This Is A Test. The Imaje Shows A Plate Baundary. Arrows Have Been Added To Indicate

Answers

Answer 1
The correct answer should be H. I hope this helps!

Related Questions

examine the graph to determine half life of strontium -90

Answers

25 years! Note that it takes 25 years for half of strontium 90 to decay.

What direction would this plate move? (the plate is gray in color)

options:

from West to East


from East to West


from South to North


from North to South

Answers

Answer:

from south to north thats what it look like

Explanation:

I will brainless who can answer this all pleaseeeeej​

Answers

Answer:

1. False

2. True

3. False

4. False

5. False

6. True

7. True

8. not sure

9. True

10. False

Explanation:

how many neutrons does the isotope of hydrogen called deuterium have

Answers

Answer:

The deuterium has one neutron and one proton (mass number equals 2) whereas, the far more common hydrogen isotope, protium, has no neutons in the middle.

Explanation

Someone pls help me with this I will make you brain

Answers

Answer:

The answer should be primary pollutants from a stationary source.

Explanation:

Primary pollutants are emitted directly from a source and do not change in the atmosphere, and from a stationary source because manufacturing factories have a fixed location.

Hope this helped :D

what is the total number of valence electrons un xenon(xe)

Answers

Answer:

8

Explanation:

Hope this helps you :)

Tổng số hạt mang điện trong ion AB4 3- là 50. Số hạt mang điện trong nguyên tử A nhiều hơn số hạt mang điện trong hạt nhân nguyên tử B là 22.Cấu hình e lớp ngoài cùng của A là gì?

Answers

Yes please please yes yes

Jax designs an expierment to determine how the amount of sodium chloride affects the boiling point of water which is the independent /manipulated variable

Answers

Answer:

The amount of sodium chloride.

Explanation:

This is because an independent/manipulated control is something that is changed or controlled by the experimenter. Jax has control over the change of sodium, therefore the answer is the amount of sodium chloride.

I took the test and got this answer right btw. Good luck everyone :)

Is carbon mixed with sand a homogeneous or heterogeneous mixture

Answers

Answer:

homogeneous

Explanation:

because I said so

A carbon mixed with sand is a heterogenous mixture.

What is heterogenous mixture?

Mixture is defined as a combination to two or more simpler substances.

There are two types of mixture

Homogenous mixture - A homogenous mixture is defined as a mixture of two or more component which is uniform throughout the mixture. They include water, air, steel etc.Heterogenous mixture - A heterogenous mixture is defined as a mixture of two or more phase which is not uniform throughout the mixture. They include sand and water, salt and oil etc. They are a non uniform mixture with visible or invisible particles.

Thus, carbon mixed with sand is a heterogenous mixture.

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Which of the following represents the velocity of a light wave?
O A. E = fx2
O B. c = hxf
O C. E = hxf
O D. c = fx2

Answers

Answer:

D. c = fλ

Explanation:

c = fλ

where" c "is the speed of light ,

• "f" is the frequency of the electromagnetic waves,

• " λ" is its wavelength.

The term that represents the velocity of a light wave is c = fx2. The correct option is D.

What is velocity?

Velocity is the speed by which an object moves or do any motion. When an item is moving, its velocity is the rate at which its direction is changing as seen from a certain point of view and as measured by a specific unit of time.

Light waves are the movement of waves in a direction. There are two types of transverse and electromagnetic. They are divided on the way of their movement.

The velocity of the light wave is the speed at which the light wave moves in a specific direction in time. The formula is given below:

c = fλ

Where c is the speed of light.

f is the frequency of the electromagnetic waves,

λ is its wavelength.

Thus, the correct option is D. c = fx2.

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subscripts in chemical formulas are used to indicate the relative proportions of the elements in a

Answers

Answer:

relative proportions of the elements in a chemical reaction

A molecule or a compound can easily be represented by their formula.Subscripts in chemical formulas are used to indicate the relative proportions of the elements in a compound.

What is chemical formula?

A chemical formula represent the identity and number of elements in a molecule or compound. Each element in periodic table has their own symbols. For example, hydrogen is H, oxygen having O, N for nitrogen, Na for sodium etc.

These chemical symbols are came from the first one or two letters of the Latin names of the elements. The number of these elements in a compound is given as subscripts of their symbols.

For example, there are two hydrogens and one oxygen in  water and the formula is H₂O. Similarly the formula of carbon dioxide is CO₂ where one carbon and two oxygens are present. In this way the compounds can be easily identified and distuinguished using their chemical formulas.

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Which choice is an element? carbon dioxide water carbon air

Answers

Answer:

carbon

Explanation:

Considering the definition of elements ans compounds, carbon is an element.

Elements are simple substances that cannot be broken down by common chemical methods. The atoms in an element are the same as each other, yet they are different from those in other elements. In addition, the elements are represented by a symbol and can be found in the periodic table.

On the other hand, compounds are substances that are the result of the chemical union of two or more elements. This combination makes it impossible to identify each element by its individual and original properties. Compounds can be separated by chemical action.

In summary, the element is a pure chemical substance formed from an atom, which is characterized in that it cannot be divided or transformed by a chemical reaction. Whereas a compound is a pure chemical substance made up of a particular set of molecules or ions that are chemically bound together.

So, being:

carbon dioxide: composed of carbon and oxygen water: composed of two atoms of hydrogen and one of oxygenair: composed mainly of oxygen and nitrogen

then, carbon is an element.

Learn more:

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I have a question does Neptune have a atmosphere?

Answers

Answer:

Neptune has a dynamic atmosphere with a shroud of cold clouds. The average cloud temperature ranges from about -240 degrees to -330 degrees F.

does the tempurture of the vinegar affect the volcano flow

Answers

The temperature of vinegar does increase the rate of reaction according to the collision theory.

Hope this answers your question!


if one mole of na3po4·3h2o is heated extensively, how many moles of water are released?

Answers

When one mole of Na3PO4.3H2O is heated extensively, three moles of water are released.

The water molecules in Na3PO4.3H2O are called molecules of water of crystallization. These molecules are not covalently bonded to the Na3PO4 molecule. They are only loosely attached to the substance.

Strong heating will drive away these molecules of water of crystallization to give three moles of water in the product.

Hence, when one mole of Na3PO4.3H2O is heated extensively, three moles of water are released.

Learn more: https://brainly.com/question/14252791

what is the second most abundant gas in the atmosphere

Answers

Oxygen is the second. The first is nitrogen which makes up 78% of air. Oxygen makes up 21% of air.

Question 2 Which models of the atom from task 1 are not supported by Rutherford’s experimental evidence? For each of these models, explain the experimental results that the model would predict.

Answers

Answer:

Sorry I don't know.

Explanation:

I'm only in middle school.

Convert SI units .68mm. =km

Answers

The answer would be 72892

Convert 68 Millimeters to Kilometers (mm to km) with our conversion calculator and conversion tables. To convert 68 mm to km use direct conversion formula below.

68 mm = 6.8E-5 km.

You also can convert 68 Millimeters to other Length (popular) units.

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PLEASE HELPP!!
True or False: Non-metal is a kind of metal.

Answers

Answer:

Explanation:

FALSE.

I hope this helps <333

:3

How do I know if a reaction is spontainous or not?

Answers

Answer:

i dont care to you

Explanation:

cause you are tuyo

the answer is this

In an experiment to determine how to make sulfer trioxide, a chemist combines 32.0g of sulfer with 50.0g of oxygen. She finds that she made 80.0g of sulfer trioxide and had 2.0 g of leftover oxygen. How would the chemist make 100.0 g of sulfer trioxide so that she has no leftovers?

Answers

Explanation:

i Forgot the answer sorry but ihave that module

How do you separate rice grains that have accidentally mixed with flour

Answers

You can use a sieve, aka a sifter, to separate the rice grains from the flour

What MUST always be true of the masses of the red and blue liquids?
А.
They will NEVER equal the mass of the purple liquid to the right of the arrow.
B.
They will ALWAYS equal the mass of the purple liquid to the right of the arrow.

Answers

They will ALWAYS equal the mass of the purple liquid, so answer is B

Pls helppppppppppppppppppppppppp

Answers

Answer:

The sun reflects off different parts of the moon as it orbits the earth

Explanation:

Answer:

the sun reflects off different parts of the moon as it orbits the Earth.

What is the formula for Iron (3) Oxide?

Answers

Answer:

IT should be Fe2O3

Explanation:

Fe2O3

Answer:

 Iron (III) Oxide = Fe2O3

Why are alloys generally used to make everyday objects?

Answers

Answer:

Alloys are often stronger and less active than pure metals. Alloys have higher melting point than pure metals.

Helium is classified as a(n)?

O alkaline earth metal
O alkali metal
O transition metal
O noble gas​

Answers

Alkaline earth metal

Answer:

NOBLE GAS

Explanation:

Look At The Table Of Elements

What is a unique quality of the halogens/halides?

Answers

Answer:

Halogens are highly reactive

What will happen when we replace oxygen with nitrogen in our life while breathing and what will happen if it was in our cells? (Theory no one has ever thought)

Answers

The short answer is that you inhale oxygen because you need oxygen for some biological processes. A fairly important one is the production of ATP, the energy all of our cells use. In the process, electrons are used and oxygen has a high affinity for electrons.

Emma strikes a match and sets some logs on fire. As the fire burns, which two forms of energy are released?

Answers

Answer:

Explanation:

There are changes in the chemical composition of the word.

There's light energy given off.

There's heat energy given up.

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