What is kinetic energy (KE)
A. energy an object has because of its position
B. energy an object has because of its height
C. energy an object has because of its direction
D. energy an object has because it is moving

Answer:

+6.

Explanation:

So, a chromium atom here has an oxidation number of +6.

Answer:An exothermic reaction may be defined as a type of reaction in which energy is significantly liberated in the form of heat or light. In such types of reactions, energy is generally transferred into the surroundings rather than utilized from the surroundings.

The option "energy from an outside source is continuously being added" represents an endothermic reaction in which heat or light energy is externally been provided. The option "more heat is given off than is put into the reaction" is not absolutely true because exothermic reactions liberate energy but it does not matter if it is higher or lower than that of being put into the reaction.

Therefore, the reactants have more heat energy than the products is a statement that is true about exothermic reactions. Thus, the correct option for this question is C.

Explanation:

you welcome

Energy from outside sources is continuously being added, since its an exothermic reaction it always focusses on releasing large amount of energy upon activation and combustion.

It cuts off on giving energy back to its surrounding unlike endothermic reaction where the generated energy is given back to the environment to restore its energy levels.

Therefore, it makes it clear that exothermic reaction is a type of reaction that uses combustion to gather the energy lying around in the surrounding to generate large amount of energy and heat and keeps on producing heat until and unless there is energy in surrounding.



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Answer:

11- all of the above

12- living things use some non-living things to obtain energy and survive.

13- by consuming other living things (I think)

14- decomposers.

15-the transfer of energy between living things

16-I don't know sorry!

17-food

18- I don't know sorry!

19- I don't know sorry!

Answer:

⬇️

Explanation:

A:

Subatomic particles that are carbon atoms, isotopes and ions have in common are protons. A regular carbon isotope like carbon 13 and carbon ion all have the same number of protons in the atomic nuclei.

B:

Isotope's are versions of a particular element that have a different number of neutrons, while ions are atoms (can be molecules too) that have lost or gained electrons that have an electrical charge. These two also have a different amount of neutrons.

Isotopes have neutrons

Ions involve electrons

Hope that helps! <3

Answer:Differences between atoms ions and isotopes

Isotopes are versions of a particular element that have different numbers of neutrons. Ions are atoms (or molecules) that have lost or gained electrons and have an electrical charge. Isotopes involve neutrons. Ions involve electrons.

Explanation:Differences between atoms ions and isotopes

Isotopes are versions of a particular element that have different numbers of neutrons. Ions are atoms (or molecules) that have lost or gained electrons and have an electrical charge. Isotopes involve neutrons. Ions involve electrons.

Answer:

option A. There is a color change

If we have any substance, can be concluded that a chemical than there is a color change. Thus, option A is correct.

What is molecule?

A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions which satisfy this criterion.In quantum physics, organic chemistry, and biochemistry, the distinction from ions is dropped and molecule is often used when referring to polyatomic ions.

The simplest forces between atoms are those which arise as a result of electron transfer. A simple example is that of say sodium fluoride. The sodium atom has a nuclear charge of +11, with 2 electrons in the K shell, 8 in the L shell and 1 in the M shell. The fluorine atom has a nuclear charge of 9 with 2 electrons in the K shell and 7 in the L shell. Two or more atoms held together with bonds make up a molecule.

Therefore, If we have any substance, can be concluded that a chemical than there is a color change. Thus, option A is correct.

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Number 2 I believe is D and number 3 is most likely A

Answer:

2) The clothes picked up opposite charges which caused them to cling to each other.

3) A crinkled-up ball of aluminum foil will conduct the charges and remove the charges from the clothes.

Explanation:

I'm sure. Like pretty sure.

Hope this helped lots and lots,

sincerely, me

Answer:

Nonmentals

Explanation:

Elements that tend to gain electrons to form anions during chemical reactions are called non-metals. These are electronegative elements. They are non-lustrous, brittle and poor conductors of heat and electricity (except graphite).

Answer:

A

Explanation:

California is surrounded by the sea so it would never run out.

Answer: the answer is b or c

Explanation:

I took it

Answer:

Applications Engineer.

Business Development Manager.

Chief Systems Engineer.

Coating Technician.

Director of Business Development.

Answer:

Water moves through the help of living organisms in an ecosystem. ... Plants absorbs water through their root system and loss by transpiration. Water also moves through the living organisms in an ecosystem. Other nonliving processes such as evaporation, precipitation, water returns back into the atmosphere.

Explanation:

hope this helps you

evaporation!

Explanation: i know im late but i hope this helps other people aswell! <3

Boiling point is the temperature at which a liquid changes its state from liquid to gas by vaporizing, usually at a constant temperature and pressure.

At the boiling point, the vapor pressure of the liquid becomes equal to the pressure of the atmosphere or the external pressure applied to the liquid surface, causing bubbles of vapor to form within the liquid and rise to the surface.

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Let us go option by option :

1) Genes are located in chromosomes. TRUE

Chromosomes are in cell nucleus. A chromosome contains hundreds and thousands of genes. A normal have 23 pairs of chromosomes, and a total of 46.

2) Chromosomes are the in nucleus.

TRUE

Chromosome is structure found in nucleus of the cell. It is made up of protein and DNA.

3) A single Chromosome can contain hundreds of genes.

TRUE

single Chromosome can contain hundreds of tgenes.

4) All of the above

TRUE

As all the statements above are true. The correct option is 4.

Answer:

all of them are true

Explanation:

this is because chromosomes contain genetic materials and it is present in the nucleus.
Therefore, the correct option is 4) all of these are true

no problem

Answer:

The sun'll likely absorb the radiation if it is close enough (Which it will never be)

Explanation:

Answer:

An element is made up of one type of atom only. A compound is a substance made up of of two or more atoms of different elements chemically joined (or bonded) together.

Answer: Apostrophes yes your right.

Explanation:  An apostrophe is a punctuation mark (') that appears as part of a word to show possession, to make a plural number or to indicate the omission of one or more letters. Three Uses of Apostrophes: In most cases an apostrophe is used to show possession.

Answer:

yes thats correct

Explanation:

Answer: hydrogen-carbonate.

Explanation:Because when carbon dioxide is passed in excess it leads to a formation of hydrogen-carbonate.

I hope everyone finds this helpful

Answer: 2

Explanation:

Answer:

the answer is a hope this hep;slms

Explanation:

betuase im write

Answer:

If I were to be a scientist, I'd be a botanist. A botanist is a scientist who studies plants. For example, they study many different aspects like their genetic, physical structure, and the distribution. They also study the relationship between plants and their different environments.

I would choose to be a botanist, because they help save our plants which are very important. They also help with telling others what exactly causes pollution and possible ways to stop it. Botanist also help with providing human resources like food. Without botanist, we would have a lot less of resources that we use in everyday life.

I can see my life as a botanist in many different ways. I might be put in the chemical based section or I might be put in the analysis of plants. Overall if I were to see myself as any kind of scientist, It would have to be a botanist.

Explanation:

Hope it helps, feel free edit whatever you'd like too

Answer:

39

Explanation:

Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.

Answer:

Option (D) A Generator

Explanation:

A generator is an equipment that has to do with the production of electricity by the use of electromagnetic induction. The generator has split rings that make contact with the exterior.

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Mark BRAINLIEST

Answer:

D

Explanation:

DDDDD

When we rewrite the given in a simpler unit we have 7.9 ms-1.

By looking at the units of the quantities involved, dimensional analysis is a technique for determining whether a physical equation or formula is right. The essential tenet of dimensional analysis is that the quantities being multiplied or divided in the equation must have units that are equal to the units of the final result.

We know that we have to apply the principles that apply to dimensional analysis in the question and we have that;

m^2.s/m.s^2

= ms-1

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Not a straight up answer, but moreover to help you get it: (Circuit Boards)

Aside from the tasks it performs, perhaps the most important function of a circuit board is providing a way to integrate the electronics for a device in a compact space. A PCB allows components to be correctly connected to a power source while being safely insulated. Also, circuit boards are less expensive than other options because they can be designed with digital design tools and manufactured in high volume using factory automation.

Partially straight up, helping you  get the answer: (Copper Chloride)

Copper(II) chloride is the chemical compound with the chemical formula CuCl 2. This is a light brown solid, which slowly absorbs moisture to form a blue-green dihydrate.

Etching helps us to see the structure of the atoms of copper.

The term etching refers to the process by which we expose the inner structure of copper. It is usually done electrically or by the use of an acid. The surface of the copper is removed and the inner structure of the copper is shown.

As such, when you etch copper, you can see the inner structure such as the arrangement of the atoms of copper and how they fit together.

As such looking through the etched copper would help you to appreciate that matter is composed of atoms.

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Answer:

.8 m/s^2

Explanation:

A= Force x Mass

.4 x 2 = .8