Answers
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A. Chloride ions (CI)
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Related Questions
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Drag the tiles to the correct boxes to complete the pairs.
Which types of matter are these substances?
Tiles
element
compound
homogeneous mixture
heterogeneous mixture
Pairs
a cloud, which consist of small water droplets
distributed throughout the air
helium, a gas composed of identical atoms
rubbing alcohol, a liquid composed of chemically bonded
carbon, oxygen, and hydrogen atoms
sugar thoroughly dissolved in water
Submit
Answers
Answer:
1.heterogeneous mixture
2.element
3.compound
4.homogeneous mixture
Explanation:
The correct pairs are:
A cloud, which consist of small water droplets - Heterogeneous mixture
Distributed throughout the air
helium, a gas composed of identical atoms - Element
Rubbing alcohol, a liquid composed of chemically bonded - Compound
Carbon, Oxygen, and Hydrogen atoms
sugar thoroughly dissolved in water - Homogenous mixture.
In Heterogenous mixture, the composition of the mixture is not uniform. In Homogenous mixture, the composition is uniform throughout. Element is the combination of same atoms. Compound contains two or more elements.
Therefore, the correct pairs are,
A cloud, which consist of small water droplets - Heterogeneous mixture
Distributed throughout the air
helium, a gas composed of identical atoms - Element
Rubbing alcohol, a liquid composed of chemically bonded - Compound
Carbon, Oxygen, and Hydrogen atoms
sugar thoroughly dissolved in water - Homogenous mixture.
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chemical equation why calcium oxide is a basic
Answers
Which of these element is NOT an alkali metal? Na Rb H cs
Answers
Answer: Hydrogen-H
Explanation: Hydrogen is a gas, the most abundant element in the universe and the simplest of them all
Is CH4 a molecule, compound, or both?
Answers
This will always help you= A molecule is formed when two or more atoms join together chemically. And a compound is a molecule that contains at least two different elements.
what would happen to dietary protein if hcl were not being produced in sufficient quantities?
Answers
Dietary protein will not be digested if Hcl were not being produced in sufficient quantities.
In the stomach, there are some glands found on the stomach lining that helps to release hydrochloric acid (HCl). Their major role is to dissolve food and produce an acidic medium.
The acidic media promotes and improves the conversion of pepsinogen to pepsin. Pepsin acts as an enzyme that supports protein digestion.
Protein digestion requires a pH of around 1.8 which can be achieved by the secretion of HCl.
As a result, if HCI is not released in the stomach in sufficient quantities, pepsin will not be activated and it would have a detrimental impact on protein digestion.
Therefore, we can conclude that dietary protein will not be digested if Hcl were not being produced in sufficient quantities.
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Name any two metals that are found in liquid state at NTP.
Answers
Answer:
mercury and gallium are two metals that are found in liquid state at NTP.
2+2++++++++++++++++++++++++++++++++++++++++++++++3
Answers
Answer:
2 + 2 + 3 = 7
Explanation:
ggs ez
What is an electrolytic cell?
A. A cell with a negative cell voltage
OB. A cell with a spontaneous redox reaction
C. A cell with a positive cell voltage
D. A cell that has a salt-bridge connection
Answers
Answer:
A. A cell with a negative cell voltage
Explanation:
other answer is wrong
An electrolytic cell is a cell with a spontaneous redox reaction (option B).
What is an electrolytic cell?Electrolytic cell is an electrochemical cell that utilizes an external source of electrical energy to force a chemical reaction that would otherwise not occur.
An electrolytic cell converts electrical energy into chemical energy. The redox reaction in the cell occurs spontaneously and is responsible for the production of electrical energy.
Therefore, according to this question, option B is correct.
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identify two ways in which carbon-12 carbon-13 and carbon-14 are alike
Answers
Answer:
identify two ways in which carbon-12, carbon-13, and carbon-14 are alike. they each have 6 protons and neutrons and they're all carbon atoms. what is a chemical compound?
what molecule would be most directly affected if 2 co2 molecules could be fixed at the same time?
Answers
The PE of a magnet in the presence of another magnet is related to -
Answers
How close the magnets are together and which direction the poles are pointed to
Help please 20 points and brainliest
Answers
Answer:
For homogeneous:
Filteration, vaporization, and a reverse chemical reaction
Explanation:
1) precipitation/crystallization reactions - if one of the components can form a solid salt when the solution undergoes several factors (concentration change, temperature change, etc); separation can be done either by filtration, centrifugation, or simple decantation.
(2) chromatography - separation can be based on the mobility of the phases (liquid chromatography, gas chromatography, ion-exchange, etc.)
(3) solvent extraction - if the components are both liquid, separation based on their relative solubilities
(4) distillation - separation based on different boiling points.
(5) magnetic separation - if one of the components have magnetic properties.
(6) electrophoresis - separation of organic molecules based on the type of gel used
heterogeneous:
Main methods of separation of heterogeneous mixtures
- Magnetic separation
- Sublimation
- Decantation
Liquid-solid mixture
Liquid-liquid mixture
- Filtration
- Centrifugation
Themes of interest
What is the MAIN reason the author includes the section "Retirement? Not Really"?
Question 7 options:
to highlight Lehmann's lifelong commitment to scientific research
to emphasize Lehmann's role in advancing the position of women in science
to describe how Lehmann's research evolved over time
to show why Lehmann's work is not as well known as her male counterparts
Answers
Answer:
to highlight Lehmann's lifelong commitment to scientific research
Explanation:
Just took the test. I was correct.
The main reason the author includes the section "Retirement" to highlight Lehmann's lifelong commitment to scientific research. Thus, option A is correct.
What is scientific research?
An scientific research has been defined as the process that has been designed to diagnose the hypothesis which has the portion of the scientific method or procedure.
Scientific experiment has been done by the testing the particular medicine on an animal and by the observation and the impact of the medicine on the animal as well as the reaction of the animal.
There are mainly three types of the scientific experiments and these are experiment which has been consist of the major level of the scientific experimentation. The second type has been Quasi- experimental and third type is non- experimental study or reasearch.
Therefore, The main reason the author includes the section "Retirement" to highlight Lehmann's lifelong commitment to scientific research. Thus, option A is correct.
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Someone pls help me I will make you brain
Answers
Answer:
D, radiation
Explanation:
the sun's heat radiates onto the land, oceans, and surrounding atmosphere, warming them
An atom of oxygen (atomic number 8) has a mass number of 17. How many neutrons are
in that atom?
Answers
# of neutrons = mass number - atomic number
= 17 - 8
= 9
∴ number of neutrons in an atom of oxygen of mass number 17, is 9.50 POINTS!!!!!!
Reactions that occur spontaneously must reach an energy threshold before they can proceed. The graph shows the amount of energy needed for a reaction to occur. Explain how enzymes are involved in this reaction and can affect the rate of this reaction.
Answers
during June , earth is 152,000,000km from the sun. how far is earth from the sun in miles
Answers
Answer:
94448421.2201
Explanation:
multiply the value in kilometers by the conversion factor '0.62137119223684'.
So, 152000 kilometers = 152000 × 0.62137119223684 = 94448.42122 miles.
A block of aluminum weighs 50.0g it's density is 2.70 g/cm3 what is the volume of a block
Answers
Answer:
18.51g/cm³
Explanation:
Mass=50.0g
Density =2.7g/cm³
Volume =Mass/Density
Volume =50/2.7
Volume =18.51g/cm³
Is college worth it
Answers
Answer:
in my opinion not really
Explanation:
Give the correct order of apparatus (Crucible, Filter funnel, Test tube, Dropper, Spatula) to show the correct arrangement that can be used to prepare and investigate the nature of pH of a sample of onion solution.
Answers
Answer:
Is it Crucible,Test tube,Dropper,Filter funnel, Spatula
Explanation:
The laboratory apparatus is used to experiment with the chemicals and to hold them. To prepare and investigate the pH of the onion sample apparatus required are the crucible, test tube, dropper, filter funnel, and spatula.
What is pH?pH is the measurement of the hydrogen or the hydroxide ion concentration in the solution to determine the alkaline or acidic nature of the substance.
The pH of the onion solution can be determined by experimenting with the help of the laboratory apparatus and reagents. A crucible is a container that can withstand high temperatures.
A test tube is a glassware used to hold the substance or chemical in it. Similarly, a dropper is used to draw liquids. The filter funnel separates the filtrate or the solution. A spatula can be used to remove or add the substance.
Therefore, the correct order of the apparatus is the crucible, test tube, dropper, filter funnel, and spatula.
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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:
Your teacher has just asked you to measure out 1.24 x 1023 molecules of sodium chloride, Sodium chloride has a chemical formula of Naci. Using a Periodic Table,
determine how many grams of sodium chloride you should measure out.
A 12.08
2.12 x 1028
284 g
D 72.5 x 1021 g
Answers
Answer:
A)
Explanation:
you’d get
bnmmmmmmmxsdcwwegvwwfdvsdv
Answers
Answer:
bnmmmmmmmxsdcwwegvwwfdvsdv
what is chemical formula of water, carbon dioxide, oxygen and hydrogen
Answers
Answer:
water= H20 , carbondioxide= co2 , oxygen=o2 , hydrogen=h2Explanation:
Answer:
water: H2O,
carbon dioxide: CO2
oxygen:O₂
hydrogen: H2
Explanation:
Today, the atom is defined as the_____ particle that can still be considered an____.
Answers
Answer:
Today, the atom is defined as the smallest particle that can be considered an element.
Explanation:
Answer:
Today,the atom is defined as the smallest particle that can still be considered an element.
Who discovered the proton?
Crookes
Rutherford
Balten
Chadwick
Answers
Answer:
Sir James Chadwick discovered proton
Explanation:
Sir James Chadwick, was a British physicist who was awarded the 1935 Nobel Prize in Physics for his discovery of the neutron in 1932. In 1941, he wrote the final draft of the MAUD Report, which inspired the U.S. government to begin serious atomic bomb research efforts.
the symbol for the element in period 2 group 13 is
Answers
Answer:
Boron
Explanation:
Using the periodic table we can see that Period 2 represents the second row. Group 13 indicates the 13th column.
why is it important to make measurements using a standard?
Answers
A standard unit of measurement is a quantifiable language that helps everyone understand the association of the object with the measurement. It is expressed in inches, feet, and pounds, in the United States, and centimeters, meters, and kilograms in the metric system.
Someone pls help me I will make you brain
Answers
Answer:
D cooler temperatures
Explanation:
Make me b r a i n please
what is the only process that removes carbon from the atmosphere
Answers
Answer:
Photosynthesis process
Explanation:
Photosynthesis removes carbon dioxide naturally — and trees are especially good at storing carbon removed from the atmosphere by photosynthesis.
