Chemistry High School

30 Points!! 15 Each Points Please Help ASAP!! View Attached Image!! Will Mark Brainliest If All Are Answered!!

Answers

Answer 1

Answer: 22: C

23: A

24: A

25: D

26: B

Explanation: I hope that this helped :)

Answer 2

Answer:

22) b. stainless steel.

23) c. they are all substances.

24) b. a compound can only be separated into its components by chemical means.

25) a. substances are compounds, mixtures are not.

26) b. capitalized

extra: not 100 percent sure of 25

Related Questions

Which pair is classified as pure substances? a. compounds and solutionsc. elements and mixtures b. mixtures and solutionsd. compounds and elements

Answers

Answer:

d. compounds and elements

Explanation:

a pure substance is when something is made up of one type of thing, whether it be elements, where they are made up of one type of atom or a compound, where its atoms are chemically bonded and cannot be broken down by physical means

Compound and elements is the answer to ur question

i need some help all of this stuff is due soon

Answers

Answer:

A is one of them.

Is there more?

B and D if I'm not mistaken.

The lightning storm is just what you'd expect it to be, and the comb is collecting particles of what looks like paper?

Anyway, the rock and the magnet are forcefully pulling the metal objects towards it with electromagnetism.

5. (4 points) “She’s singing higher than he is” is a statement related to:___
A. Volume
B. Pitch

Answers

Answer:

It's pitch

Explanation:

I play violin and it would be the same. Pitch is how high a note is. A B in treble clef is higher than a G

what is the density of the football

Answers

Answer: Mass of the ball is . 42 kg. The density of air is 1.2 kg/m3.Jun

Which process changes matter from a gas to a liquid state?

Answers

Answer:

Condensation

Explanation:

Quick answer

carbon has 4 electrons in the outer shell .how does carbon attain stable electronic configuration!if ur answer it 21 points + i wil mark as brainlist so dont miss it

Answers

Answer:

through covalent bond

Without atmospheric pressure humans could not do what?

Answers

Answer:

Breathe. Breathing is the number one thing every human does, and their bodies need it. Think about going in a pool in 6 feet. You realize that its kinda hard to breathe and it feels like something is holding your chest down really hard. Water pressure and air pressure can affect the breathing habits of a human and can also cause suffocation to the lungs.

Explanation:

please give brainlyest

Which of the three sub-atomic particles is the lightest?

a The proton
b The neutron
c The electron
d orbital

Answers

Answer:

The electron

Explanation:

The electron will be the lightest subatomic particle.

Answer:

The electron

Explanation:

Electron, lightest stable subatomic particle known. It carries a negative charge, which is considered the basic unit of electric charge. The rest mass of the electron is 9.10938356 × 10 −31 kg, which is only 1/1,836 the mass of a proton.

A continental slope is the boundary between what to types of Earth's crust?
A Basalt and Sandstone
B Convergent and Divergent
C Continental and Oceanic
D Volcanic and Sedimentary

Answers

Answer:

Explanation:

I took the k12 test and got it right

A continental slope is a boundary between the Continental crust and Oceanic crust. Therefore, option (C) is correct.

What is a continental slope?

A continental slope can be described as the slope between the outer edge of the continental shelf and the deep ocean floor. The continental slope is defined as a cut by submarine canyons in many locations and marks the seaward edge of the continental shelf.

Continental slopes follow the boundary between continental and oceanic crust. The Continental slope has a steepness range from 1 to 25 degrees, the average is 4 degrees.

The continental margin lies between the continental shelf and the abyssal plain and comprises a continental slope that is surrounded by the flatter continental rise. It contains thick sediments deposited by currents from the shelf and slope.

The shelf generally ends at a point of increasing slope known as the shelf break and the sea floor under the break is the continental slope.

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help me its due soon thanks

Answers

Answer:

Explanation:

The gravity accelleration values are the same for both planets.

B: Mercury and Mars have the same gravitational force.

You can see at the chart, it shows

Gravity: Mercury Mars

3.7 m/s2 3.7 m/2

How do you work out the charge of sulphate

Answers

Answer:

You would have find its valency

If an atom has 18 protons,17 neutrons,and 19 electrons what is the atom electrical charge?
A +2
B +1
C -2
D-1

Answers

Answer:

D: -1

Explanation:

18 protons so +18

19 electrons -19

neutrons dont count there neutral

-19+18= -1

Answer: D: -1

Explanation: All protons have a +1 charge, neutrons are neutral, and electron have a -1 charge. Therefore it can be concluded that if the atom has 18 protons which all have +1 charge and 19 electrons which all have -1 charge, then the atom will have a -1 charge since 18-19=-1

Characteristics used to describe matter are you called

Answers

Physical properties are characteristics that describe matter. They include characteristics such as size, shape, color, and mass. These characteristics can be observed or measured without changing the identity of the matter in question.

Answer:

Physical properties

Explanation:

Explain how balancing chemical equations relates to the law of conservation of matter.

Answers

Answer:

In every chemical reaction, the same mass of matter must end up in the products as started in the reactants. Showing that Mass cannot be created nor destroyed in a chemical reaction

Explanation:

1. The answer to the research question is the...
A. Claim
B. Evidence
C. Reasoning

2.The scientific data used to prove your point is the...
A. Claim
B. Evidence
C. Reasoning

Answers

Answer:

1. A claim

2. B evidence

What are 2 mixtures

Air
Orange juice
Silver
Sodium chloride
Water

Answers

An:
Orange juice and Sodium chloride

I will give 25 points and make them brainlest if they solve this.
A carbon atom that is a part of your body could very well have been part of a dinosaur millions of years ago. What BEST explains this?

A The carbon atoms that are found in current living things are developed when the organism is produced.
B Carbon atoms found in current living things are the same carbon atoms that have always been a part of living things, they are just recycled.
C This could not be explained because carbon found in our bodies could not have a part of any previous organism.
D Carbon atoms are genetically passed through the evolution of organism.

Answers

Answer:

B - Carbon atoms found in current living things are the same carbon atoms that have always been a part of living things, they are just recycled.

Carbon atoms found in current living things are the same carbon atoms that have always been a part of living things, they are just recycled. Hence, option B is correct.

What is an atom?

An atom is a particle of matter that uniquely defines a chemical element. An atom consists of a central nucleus that is usually surrounded by one or more electrons.

Dinosaurs were the most dominating organism in that time period.

The dinosaurs and the present-day human beings have certain similar characteristics. Some of them are as follows-

They both have control over their body movement.

They have a well-functioning brain.

They are sharp and active.

The dinosaurs were dominant during the Jurassic period and the humans are dominating at the present on earth.

Hence, option B is correct.

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NEED HELP ASAP-WILL GIVE 15 POINTS
Which sentence below accurately demonstrates the process of osmosis?

A. Leaving a raw egg in water for a period of time will cause the egg to swell in size.

B. A plastic bag filled with salt water is left in a larger container of water over night and all of the water in the large container becomes salty.

C. A drop of food coloring in water will slowly disperse throughout the water molecules and eventually completely change the water's color.

D. When a bottle of perfume is opened, the smell is stronger at first and then it fades.

Answers

Answer:

Explanation:

its a

What is Ammonium bisulfate as a chemical formula?

Answers

Answer:

Ammonium bisulfate/Formula

(NH4)HSO4

Reason to answer:

Mark me brainliest

Do cells in many-celled organisms all look the same or different? Explain.

Answers

Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions.

Cells in many-celled organisms can look the same or different, depending on the type of organism and the function of the cells.

In general,multi-cellular(many-celled) organisms have specialized cells that perform specific functions, such as muscle cells, nerve cells, and blood cells. These cells are different in structure and function, but they all work together to maintain the organism's health and survival.

For example, in humans:

Muscle cells are long and cylindrical, while nerve cells are long and thin with many branches. Blood cells are smaller and come in several different types, such as red blood cells, which carry oxygen, and white blood cells, which fight infection.On the other hand, some cells in many-celled organisms look the same, such as skin cells, which are flat and thin, and line the surface of the skin.

Therefore, cells in many-celled organisms can look the same or different, depending on the function of the cells. While many-celled organisms have specialized cells, some cells have the same structure and function.

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An ion has an overall charge of -2. Its the nucleus is made up of 29 protons and 35 neutrons. How many electrons does the atom have?

Answers

Answer:

31 electrons.

Explanation:

Atoms initially have a neutral charge. So if this atom were neutral, it would have 29 electrons to balance out with the 29 protons. Protons are never added or removed. Since this atom has a -2 charge, that means it is an anion with 2 additional electrons. 29e- + 2e- = 31e-

Which statement best describes how an existing theory is often affected by the development of new technology?

A.) An existing theory is thrown out and replaced with a completely new theory based on the new observations.
B.)An existing theory is modified so that it can explain both the old and new observations.
C.)An existing theory remains the same because a theory is a proven fact that is always true.
D.)An existing theory is kept unchanged while a new theory is developed to explain the new observations.

Answers

Answer:

An existing theory is modified so that it can explain both the old and new observations.

Explanation:

The statement which best describes how an existing theory is often affected by the development of new technology is that an existing theory is modified so that it can explain both the old and new observations.

What is a theory?

Theory is defined as a thoughtful explanation which is provided for observations which is constructed using scientific methods.The theory brings together many facts and hypothesis.

It is called as theory as it provides some set of assumptions initially which provide description to the field's approach to the subject.These are elementary theorems of a particular theory.It is a rational type of thinking about a set of observations.

They may be scientific,or non scientific or have no discipline at all.There are three types of theory:1) scientific, 2)philosophical and 3) moral.It provides explanation regarding the underlying mechanisms .

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A student finds a rock on the way to school. In the laboratory he determines that the volume of the rock by placing the rock in a graduated cylinder with 50 mL of water and watched the water rise to 72.7 mL. The student determined the mass is 39.943 g through the use of a triple beam balance. What is the density of the rock?

Answers

Answer:

1.76 g/mL

Explanation:

You need to find the volume. You can do this by subtracting the volume of the water and the rock by the volume of the water.

72.7 mL - 50 mL = 22.7 mL

Now that you have volume, divide the mass by the volume to find the density.

39.943 g/22.7 mL = 1.76 g/mL

what are the 3 things needed in photosynthesis

Answers

Answer:

Carbon dioxide, water and light are all needed for photosynthesis to take place. Photosynthesis happens in the leaves of a plant.

Explanation:

How many grams are in 0.500 mol of Na (molar mass of Na = 22.99 g/mol)?

Answers

Answer:

11.495 grams

Explanation:

A graduated cylinder is filled with 54.32 cm3 of water. An irregular solid made of iron is carefully placed into the graduated cylinder. The new volume recorded on the graduated cylinder is 57.65 cm3. The density of iron is known to be 7.874 g/cm³. What is the mass in grams of the irregular solid made of iron?

Answers

Answer:

The answer is 26.22 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

density of iron = 7.874 g/cm³

volume = final volume of water - initial volume of water

volume = 57.65 - 54.32 = 3.33 mL

We have

mass = 7.874 × 3.33 = 26.22042

We have the final answer as

26.22 g

Hope this helps you

I WILL GIVE YOU BRAINLIEST!!!

Answers

Answer:

The second option

Answer:

Intent to cause harm

PLZ HELP WILL GIVE U BRANILEIEST

Answers

Answer:

I'm pretty sure it is C

Explanation:

because it has the same number of protons and neutrons

What % of all the atoms in the universe are hydrogen

Answers

Answer:

Over ninety percent of all the atoms in the Universe are hydrogen atoms.

Explanation:

Over ninety percent of all the atoms in the Universe are hydrogen atoms. By mass, hydrogen makes up about 75% of all matter in the Universe. Hydrogen atoms are also the smallest and lightest of all the atoms with only one electron and one proton in a common single hydrogen atom (called protium).

PLEASE HELP!! :((((((((((((((((((((((((

Answers

Where is the word problems? Like the problems that you have to put it in.

Explanation:

Other Questions

Please please please do it fast you will get 10 points for this. 9 PRACTICEa Complete these sentences with adjectives from activity 7a.1. I couldn't understand the lesson about the solarsystemSome people thought it was... but I was really2. We couldn't take our eyes off the game. It was really ...Peter's a real soccer fan, he was the most ... of all of us.3 Shes a.singer, she's got a fantastic voice.4 Is anyone in the dass ... in starting a drama club? Yes. Tthink it's an ..idea.5 We thought it was very ... when we put a mouse on theteacher's desk, bur she wasn't ..6 The tourists were .. when they discovered they wouldhave to pay $500 for a visa.when I talk to English people and I can'tthink of the words I want to say.8 It was a hor day and he couldn't understand the lesson. Hefelt both ... andat all.7 1 find it very9 I can't understand the way they use the definite article inEnglish. It doesn't make sense; it's really ...10 My parents were ...when I told them I wanted to be anastronaut. They didn't speak for about five minutes. ThenmyFather said: "That's an ... idea, but if that's what youwant, you must do it." Find the midpoint between (1 , -2) and (-10 , 1) 1. You will receive a Financial Aid Award Letter... *Before you have completed the FAFSAAfter you have completed the FAFSA and applied to collegesAfter you have completed the FAFSA and have been accepted to collegesO After you have started your first semester of classes What's 2|9| |2|?A) 20B) 16C) 18D) 20 How were the Southern colonies representative democracy? can yall help me plz The environmental protection agency of a county would like to preserve a piece of land as a wilderness area. The current owner has offered to lease the land to the county for 20 years in return for a lump-sum payment of $1.1 million, which would be paid at the beginning of the 20-year period. The agency has estimated that the land would generate $110,000 per year in benefits to hunters, bird watchers, and hikers. Assume that the lease price represents the social opportunity cost of the land and that the appropriate real discount rate is 4 percent.a. Assuming that the yearly benefits, which are measured in real dollars, accrue at the end of each of the 20 years, calculate the net benefits of leasing the land. Should the environmental protection agency pay for this piece of land?b. Some analysts in the agency argue that the annual real benefits are likely to grow at a rate of 2 percent per year due to increasing population and county income. Recalculate the net benefits assuming that they are correct. Should the environmental protection agency pay for this piece of land? Why is near impossible to draw a rhombus on Geoboard and easy to draw a square?Thank you in advance :) what is the largest exponent in a polynomial How is an equilibrium price determined?A. By finding a price that meets the highest quantity demanded byconsumersB. By finding a price that exceeds the expenses producers take on tocreate supplyC. By finding a price that meets the highest quantity supplied byproducersD. By finding the price where quantity supplied matches quantitydemanded Please help!!Solve for x.12x - 39 9 AND -4x + 3 -9/4d) There are no solutionse) All values of x are solutions.Will mark brainliest to the first answer!! what happens to the matter that makes up a liquid when sound travels through it In what way does the following line from James Joyce's "Araby" contribute to the symbolism of the story?She was waiting for us, her figure defined by the light from the half-opened door.A. Mangan's sister's attractive figure symbolizes the better life the narrator expects when he is older and has escaped his dark neighborhood.B. The light mentioned here works symbolically with the "half-opened door" motif to suggest the narrator's confusion about what path to take in life.C. Mangan's sister is associated with light in the story's imagery because she is part of the narrator's hopes for a greater life.D. The partial light reflects the sense of balance that the narrator seeks but finds missing in his "blind" street and dark neighborhood.E. Mangan's sister, who is half-cloaked in light, symbolizes the dark buildings and bright lights of the enchanting East. Lactic acid fermentation occurs ina.) any environment where oxygen is present b.) yeast cellsc.) the mitochondria of plant cells d.) muscle cells Why Didn't Carnegie not pay his workers more, even though he could?A( he would rather donate his money than pay his workers more.B( It violated Carnegie's determination to control the industries at all Costs.C( he Didn't want to pay his workers more if the workers in other industries wouldn't be paid more.D( He wanted to use the money to make the working Conditions at his mills better. What is the population of Mexico City? Which statements describe outcomes of the Hundred Years' War? Choose four correct answers.The English Parliament gained power The king of France gained power The king of England gained power England was able to take more land from France. France was able to drive out English invaders from their land English became the official language of the English government 7. Cassidy's family is driving homefrom vacation at an average speedof 55 mph. After 2 hours theyare 110 miles from home. Whatis an equation in point-slope thatrepresents their distance fromhome, y, after x hours? 7. Where were pitch and tar harvested from?pine treestobacco leaveslowcountry marshesabundant oil deposits