Answers
Answer:
D. 1, 2, and 3
Explanation:
Related Questions
When you are drying your hands underneath a hand dryer, this is an example ofA. RadiationB. ConductionC. ConvectionD. Convection
Answers
Answer: Convection
Explanation: Convection is the transfer of heat so the heat would be transferred to your hands leaving them dry.
Give an example of a type of cookie that is a heterogeneous mixture, and a type of cookie that is a homogeneous mixture. Explain your reasoning.
plz answer
Answers
homogeneous- chocolate chip cookie
How do we get mass from moles?
Answers
phenolphthalein is used as a visual indicator in a strong acid-strong base titration because
Answers
The pH range of phenolphthalein is 8.3 - 10.0, which is suitable with the pH range of Strong Acid and Strong base titration and so phenolphthalein is used as a visual indicator in a strong acid-strong base titration.
What is an Indicator ?Any substance that gives a clear visible indication of the presence or absence of a particular concentration of a chemical species, such as an acid or an alkali in a solution, usually by a colour change.
The pH range of Strong Acid and Strong base titration is 3–11 and equivalent point is at 7
the pH range of Strong Acid and Weak base titration, is 3–8 and equivalent point is below 7
the pH range of Weak Acid and Strong base titration, is 6 - 11 and equivalent point is above 7
So for titration , an indicator with suitable pH range is used
The pH range of phenolphthalein is 8.3 - 10.0.
Therefore phenolphthalein is used as a visual indicator in a strong acid-strong base titration.
To know more about Indicator
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How many energy levels does iron have
Answers
Answer:
Number of Energy Levels: 4
First Energy Level: 2
Second Energy Level: 8
Third Energy Level: 14
Fourth Energy Level: 2
Explanation:
Hope It Helps!
Answer:
4 energy levels
Explanation:
1st energy level = 2 electrons
2nd energy level = 8 electrons
3rd energy level = 8 electrons
4th energy level = 8 electrons
Which two energy sources were used the most in
California in 2016? How do these sources compare to other sources
Answers
Answer:
The 1st and 2nd ones on the top
Explanation:
Hope this helps:)
answer in the blank 1. Broken glass jar 2. Food scraps 3. Cooked rice 4. Plastic bags 5. Water
Answers
I don't understand ur question
Solve for the Gradient AB. The units will be in m/km but you should not
leave units in the answer because the answer key will not take them. Write
the answer to the tenths place and no units.
.X
B
Lake
-100
Blue River
50
А
D
5 kilometers
Contour interval 10 meters
N
0
2
3
5 kilometers
Answers
Answer:
help me mark me as a brinliest
The formation of a covalent bond involves the
Answers
Answer:
Atoms of non metals
Explanation:
Hope it helps!
How do I do unabbreviated electron configurations?
Answers
Answer:
In shorthand electron configuration, the electron configuration starts with the symbol of the noble gas in the previous period, followed by the additional configuration of the electrons for the given element. For example, aluminum has the atomic number 13, which is the number of protons in the nuclei of its atoms.
if you need more help go to you-tube and search up Abbreviated Electron Configurations and it's by EisleyChem
list 5 chemical properties of water??
Answers
Answer:
In the presence of a strong electron donor (strong reducing agent), water serves as an oxidizing agent. In the presence of a strong electron acceptor (strong oxidizing agent), water serves as a reducing agent. On-water reactions are a group of organic reactions that take place as an emulsion in water and have an unusual reaction rate acceleration compared with (i) the same reaction in an organic solvent, or (ii) the corresponding dry media reaction.Amphoteric nature : Water can act as both acid and base, which means that it is amphoteric in nature.Hydrolysis reaction : Water has a very strong hydrating tendency due to its dielectric constant. It dissolves many ionic compounds. Some covalent and ionic compounds can be hydrolyzed in water.Redox reactions : Electropositive elements reduce water to hydrogen molecule. Thus, water is a great source of hydrogen.PLEASE ANSWER THIS ILL GIVE YOU BRAINLIEST
Back injuries can be crippling and severely limit one’s function and quality of life.
How would your life be affected by a back injury?
What modifications would you have to make to your home if you were confined to a wheelchair?
Which of your hobbies and activities would be affected if you could no longer walk?
Answers
A back injury would impact literally every aspect of your life.
You would need to either install a starlit, a lift, or move to a bungalow or bottom floor apartment.
The only hobbies you would be able to complete with no modifications would be what I call stationary hobbies- when you sit and do something, for example, knitting or sewing. However, some sports can be altered to allow for those in a wheelchair to play.
When a material is heated, the change in temperature depends on the kind of material and its mass. Different objects can absorb and release different amounts of energy when heated and cooled. This property is called heat capacity. How might scientists apply this property to design something useful in the real world? Give one or two examples.
ill give 50 points for this answer please help
Answers
Answer:
heat is absorb and cooled not absorb
Fluorine + sodium chloride → sodium fluoride + __________. What is the missing chemical name?
Answers
Answer:
Chlorine (Cl)
Explanation:
The equation would be:
[tex]F+NaCl[/tex] → [tex]NaF + Cl[/tex]
This is because no atom is lost in a reaction. Chlorine would be the missing chemical as it is on the other side of the equation and needs to be accounted for on the products side.
The missing chemical in the reaction of sodium chloride with fluorine forming sodium fluoride is chlorine.
What is a chemical equation?The chemical equation is given as the representation of the reactants molecules and the product molecules in a chemical reaction.
The reaction follows the law of conservation and thereby no element will be lost in the reaction. Thus, the chemical reaction for the fluorine and sodium chloride is given as:
Fluorine + Sodium chloride → Sodium fluoride + Chlorine
Thus, the missing chemical in the reaction was chlorine.
Learn more about a chemical reaction, here:
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I will brainless who can answer this all pleaseeeeej
Answers
Answer:
Red, Orange. Yellow, Green, Blue, Indigo, and Violet.
Explanation:
the answer is the colors of the rainbow
What do all of the cells have in common?
A) cell membrane B) endoplasmic reticulum C) flagellum D) nucleus
Answers
Dubnium-262 has a half-life of 34 seconds. How long will it take to decay to 1g if the original amount was 300g?
Answers
Answer:
305 seconds
Explanation:
PLEASE HELP!!!
Most lakes have rivers flowing out of them, carrying water to the ocean. However, some
lakes, including Great Salt Lake and the Dead Sea, have no outlet. Water flowing into
these lakes leaves only through evaporation. Considering that the water flowing into the
lakes contains many dissolved substances, how does the lack of an outlet affect the
composition of these lakes? What would you expect to happen after many more years
of inflow and evaporation?
Answers
Answer:
I feel like it could lead to flooding
Will the lizard make it to the other side of the road before the car gets there?
yes or no
Answers
No not at all because of its size and the amount of speed from the car. then the impact will be bad
Materials:
Food labels
Magnifying glass or eye glasses (if necessary)
Procedure:
1. Look for ten (10) food labels that you can find at home (ex. cereal drink, chocolate candy, soy sauce, etc.)
2. You may also find product labels other than food such as medicine, household
cleaning products, cosmetics, and toiletries.
3. List down in the table below, the compounds in the product label and the constituent
elements. There are cases that you will need to look up the constituent elements
because they may not be obvious from the compound name (e.g., citric acid, oil).
Write its uses.Use(s)/Function
4. Careful in handling corrosive substances. Use gloves or wash your hands after holding it.
Compounds and their constituent elements written in the food labels
Food Product
Compound
Constituent Element
Use(s)/Function
Ex. Cereal drink
Iron pyrophosphate
Iron, phosphorus, oxygen
Zinc sulfate
Zinc, sulfur, oxygen
What distinguishes compounds from elements? Applying, Synthesizing
pls help me...:((
Answers
Answer:
Nice experiment
Explanation:
why is it important to use deionized water in an experiment
Answers
because it removes all of the charged ions in the water, making it safe to mix into medications
Write an equation of a line parallel to y=3x-1 passing through the point (0,3).
Answers
Answer:
wow never heard the question
the melting point of a substance is also the same as the:
Answers
Answer:
The melting point of a solid is the same as the freezing point of the liquid. At that temperature, the solid and liquid states of the substance are in equilibrium.
Pure gold: 1063
Pure silver: 961
does the character of a bond become more covalent or ionic when the difference in electronegativity of the bonded atoms increases?
Answers
Identify the cells in interphase, prophase, metaphase, anaphase, and telophase by circling the cells.
Answers
Answer: See diagram below
Explanation
Interphase- cell prepares to divide
Prophase- nucleolus disappears and chromosomes shorten
Metaphase- chromosome lines up in the center
Anapahase- chromatids are pulled apart to opposite poles
Telophase- cell about to/is divided into two
Based on Periodic Law, how is the Periodic Table arranged?
Answers
Answer:
Elements of the periodic table are arranged in order of increasing atomic number. the periodic law states "when elements are arranged in increasing atomic number, there is a periodic repetition of their chemical and physical properties."
Explanation:
Are two atoms of same element identical
Answers
Answer:
No. Two atoms of the same chemical element are typically not identical. Since the states of the electrons in an atom are what determine the nature of the chemical bonding that the atom experiences, two atoms of the same element can react differently if they are in different states.
Answer: No
Explanation: Two atoms of the same chemical element are typically not identical. First of all, there is a range of possible states that the electrons of an atom can occupy. Two atoms of the same element can be different if their electrons are in different states.
Answer this question will give brainliest
Answers
Explanation:
cooling
communication
heating
motion
Answer:
I believe it's all of the above
Explanation:
Because heating and cooling can be done by an AC unit, which takes electricity. Communication also takes electricity, along with lighting (especially if we're talking light fixtures to light up homes). Not to mention motion, such as cars and other transportation uses, believe it or not, electricity.
Hope this helped, also please tell me if I'm wrong.
the most common type of bacteria contamination in canned foods is
E.coli
salmonella
shigella
clostridium botulinum
Answers
Answer:
the answer is salmonella
What type of front is depicted here?
Cold
Warm
Sationary
Occluded
Answers
Warm
Explanation:
The warm air is going against the cold