when two or more elements are combined, the substance produced is a:

Answers

Answer 1

A compound is formed when two or more elements are chemically combined.

Ex: [tex]H{2}O[/tex]

A mixture is formed when two or more elements and/or compounds are physically combined.

Ex: [tex]NaCl + H{2}O[/tex]


Related Questions

how are the light reactions and the calvin cycle connected?

Answers

Answer:

The light reactions provide the Calvin cycle with oxygen for carbon fixation, and the Calvin cycle provides the light reactions with sugars to produce ATP. The light reactions provide ATP and NADPH to the carbon fixation step of the Calvin cycle, and the Calvin cycle provides water and electrons to the light reactions.

Explanation:

The energy that drives the Calvin cycle comes from ATP and NADPH produced by the light reactions, that is, the energy capture reactions in the first stage of photosynthesis.

The Calvin cycle is a process that results from photosynthesis made by plants, through which Carbon dioxide is absorbed and transformed into organic material or biomass.

In the light phase, light energy is stored in organic molecules that provide energy to carry out the process (ATP) and have the ability to donate electrons (reducing power) to another molecule such as NADPH.

These molecules formed in the light reactions participate in the reactions that make up this cycle during which carbon dioxide (CO2) taken from the atmosphere is fixed, incorporating it into the body in the form of glucose thanks to the action of the enzyme RuBisCo.

Therefore, we can conclude that the molecules constituted in the light reactions (ATP and NADPH) participate in the reduction of carbon dioxide (CO2) through the series of reactions of the Calvin Cycle.

Learn more about  the Calvin Cycle here: https://brainly.com/question/13984369

The human body is about 9.5% carbon atoms, with a small fraction of that carbon being radioactive carbon-14. Carbon dating is a method of determining the age of things made of once living materials. What information would be needed to find the age of a human fossil or the Dead Sea Scrolls?

Answers

Answer:The age can be determined by utilizing carbon-14, a radioactive isotope of carbon.

Explanation:

a mixture in which substances are distributed evenly

Answers

the answer is a homogeneous mixture!

Could somebody please give me an example of some physical properties for any substance?

Answers

Answer:

A physical property is a characteristic of matter that is not associated with a change in its chemical composition. Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity.

Explanation:

Why do scientists create proxies?

Answers

Answer:

Proxies enable scientists to recreate climate conditions in different parts of history.

Explanation:

Proxies are characteristics of the weather in a certain period of time that have been preserved for different weather measurements like temperature, humidity, wind direction, and amounts of precipitation. The reason scientists create proxies because it "enables them to recreate climate conditions from different parts of time to have a better understanding on what weather was like during that time period."

Hope this helps.

how many grams are contained in 3.4 moles of potassium​

Answers

Answer:

The answer is 0.025576559594663

*20 points* Pls answer following the rules of :No files
No links
No inappropiate responce
clean comments
Thank you!!

Answers

Question 4: C-An element is a substance made up of two or more different types of atoms that
are not chemically combined.
Question 5: Coke, Aluminum foil, chicken noodle soup, Gatorade

do number 16 please
I’LL GIVE BRAINLY

Answers

Answer: I think they will be compared by dividing 10 from 100 which equals 10 which will be your volume of the boiling point

Explanation:

Please look at others answer I am not 100% sure if this is correct.

A hypothetical element has an atomic weight of 42.8452 amu. There are three main isotopes of this element with mass numbers of 41, 43 and 44. The 44 amu isotope has a 8% abundance. What is the percent abundance of the isotope with the mass number of 41?
1. 7.740%
2. 12.04%
3. 92.26%
4. 46.00%
5. 12.34\%

Answers

Answer:

Answer is 46.00%

Explanation:

absolute mass= A1F1 +A2F2

100

42.8452= 44×8% + 41×( 100--F2)

100

so you get

F2= 46.00%

am not sure

Iron (II) chloride
Covalent or ionic

Answers

Answer:

ionic

Explanation:

Iron(II) chloride, also known as ferrous chloride, is the chemical compound of formula FeCl2. It is a paramagnetic solid with a high melting point. The compound is white, but typical samples are often off-white

When piece of very hot metal releases energy into a cup of water, if the temperature of metal drops
by 426.7°C, and the final temperature of the metal is 31.2°C, what was the initial temperature of
the metal?

Answers

Answer: The answer is 457.9

Explanation: Realistically all you have to do is add both of the temperatures and then you can figure out the original heat. Since the heat drops 426.7 degrees and it comes to 31.2 degrees its 426.7 + 31.2 = 457.9.

2+2++++++++++++++++++++++++++++++++++++++++++++++3

Answers

Answer:

2 + 2 + 3 = 7

Explanation:

ggs ez

H2F5BLi

How many atoms are in the chemical formula?

Answers

Answer:

eight atoms

hope it helps

how much energy is released when 23 g of steam at 100 Celsius is condensed into liquid water?

Answers

H = mc∆T

H = 23g * 4.2J/g°C *(100°C - 0°C)

H = 9660 J

H = 9.66 KJ.

The energy released is 9.66 KJ.

an item composed of at least 3 identifiable different compounds

Answers

yuh yuh yuh yuh yuh yuh

What is photosynthesis?

Answers

Answer:

when the sun's light hits a living thing

matter is passed down from the living part of an ecosystem to the non living part when witch of the following take place ?

Answers

I don’t know about that

2.) Which of the following has the fastest moving particles?
a.) A desk at 25°C
b.) A glass of water at 25°C
A balloon filled with helium at 25°C

Answers

Explanation:

A balloon filled with helium at 25°C

because un gas particles as far as possible

and helium is gas so answer is c

how does the shape of the periodic table relate to electron configuration?

Answers

The shape of the periodic table is related to the electron configuration of elements by the arrangement of periods which can be used to guess the highest energy levels of the atom. Additionally, the group to which an atom belongs is the number of Valence electrons it has.

The periodic table is a systematic arrangement of elements in order of their atomic number with a set of 7 rows called periods and a set of 8 or 18 Columns called Groups.

In essence, the period of an element is a measure of the highest energy level shell of such an element.

Additionally, the group of an element is as determined by the number of Valence electrons in the outermost shell of such an element.

Ultimately, the s-, p-, d-, and f- group elements are visibly arranged and can be identified from the shape of the periodic table.

Read more:

https://brainly.com/question/19456463

most chemical reactions in organisms are regulated by organic catalysts known as

Answers

Answer:

An enzyme is a substance that acts as a catalyst in living organisms, regulating the rate at which chemical reactions proceed without itself being altered in the process. The biological processes that occur within all living organisms are chemical reactions, and most are regulated by enzymes.

Explanation:

Hope this helps...

why does iodine have a lower atomic mass than tellurium

Answers

this is why lololololol

what is chemical formula of water, carbon dioxide, oxygen and hydrogen​

Answers

Answer:

water= H20 , carbondioxide= co2 , oxygen=o2 , hydrogen=h2

Explanation:

Answer:

water: H2O,

carbon dioxide: CO2

oxygen:O₂

hydrogen: H2

Explanation:

PLEASE LHELP
How many oxygen atoms are in 6 Carbon dioxide compounds (6co2)
Number 5
PLEASEE HELP

Answers

Answer:

12

Explanation:

6 moles multiplied 2 atoms of O2

That gives 12 atoms

plsss help I really need it:(((​

Answers

Answer:

12. A

13. A

14. D

15. B

Explanation:

12. The 3rd law of motion is the force of our object being equal and opposite the other. If the Buller goes forward with force, the the gun recoils backwards with the same force.

13. There's nothing else described in the problem besides him getting kicked in the face

14. If you mive the oars forwards then the boat itself moves backwards

15. The gas helps push the rocket upwards since it goes downwards.

Which metalloid has five valence electrons in the fourth electron shell?

antimony
germanium
selenium
arsenic

Answers

Answer:

A- antimony

Explanation:

Answer:

A

Explanation:

Two scientists work together on an experiment, but they have different hypotheses. When scientists look at the experimental results, they interpret the data in different ways and come to different conclusions. Which of the following does this situation best illustrate?

Answers

Answer:

The correct answer is option D, confirmation bias.

The correct answer is option D, confirmation bias.Confirmation bias is the tendency to interpret data in a way that confirms the already designed hypotheses.

The correct answer is option D, confirmation bias.Confirmation bias is the tendency to interpret data in a way that confirms the already designed hypotheses.As the two scientists interpret the data (or experimental results) in different ways to adhere to the different hypotheses. this is also called indicative of cognitive bias. This is also called inductive reasoning where the premise is viewed as evidence for the validity of the conclusion.

Answer:

d

Explanation:

got it right on plato

what is the maximum time food can remain in the temperature danger zone

Answers

Answer:2 hours

This range of temperatures is often called the "Danger Zone." Never leave food out of refrigeration over 2 hours. If the temperature is above 90 °F, food should not be left out more than 1 hour. Keep hot food hot—at or above 140 °F.

Explanation:

Identify the independent and the dependent variables of this statement: Do tomatoes
have a faster growth rate under fluorescent, incandescent, or natural light?

Answers

Answer:The dependent variable is the rate of germination and growth. The independent variable is the variety of tomato.

Explanation:i hope this helps you

Energy is released into the cells by __________. A) Golgi bodies B) mitochondria C) vesicles D) lysosomes

Answers

Answer:

B) mitochondria

Explanation:

what is the maximum theoretical number of water molecules with which, in theory, one urea molecule can hydrogen bond?

Answers

Answer:

The maximum number of molecules that one water molecule can hold through hydrogen bonding is 4 because the two hydrogen atoms of water can form two hydrogen bonds and the two lone pairs on oxygen can also form two hydrogen bonds. hope it helps

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