Answers
Answer:
Use a fine, crystalline solute and stir vigorously
Explanation:
It is better if it is fine instead of coarse since this will provide more surface area. If there is more surface area, the crystals will dissolve faster.
You also have to stir the solution vigorously to keep all of the crystals exposed to the solvent.
Answer:
Use a fine, crystalline solute and stir vigorously
Explanation:
Hope this helps
Related Questions
What does the poitof incidence mean?
Answers
Answer:
Point of incidence: The point on the surface where the incident ray strikes the surface is called the point of incidence. Reflected ray: The ray of light that bounces back from the surface of an object is called a reflected ray of light.
Explanation:
Search
In an ecosystem, which of the fcHlowing is NOT a trait of living organisms?
Contains DNA
Can reproduce
Made of cells with membrane
Responds to stimuli
Answers
Answer:
responds to a stimuli or made of cells with membrane
Explanation
I have 8 valence electrons, completely nonreactive, and my family contains Helium that is used to fill balloons! I must be a...
a
metal
b
nonmetal
c
metalloid
d
noble gas
Answers
Answer:
Noble gas
Explanation:
Noble gases are complete octets ( have 8 valence electrons) Helium is a member of this family.
If 0.525 moles of O2 are produced, how many moles of KClO3 are decomposed?
Answers
Answer:
B. 0.35mol KClO3
Explanation:
The balanced equation in this question is given as follows:
2KClO3 → 2KCl + 3O2
Based on the chemical reaction;
2 moles of KClO3 decomposes into 3 moles of O2
If 0.525 moles of O2 are produced, then:
= 0.525 × 2/3
= 1.05/3
= 0.35mol of KClO3 is decomposed.
Write the correct formula for each compound named below. Show the from which it is formed.
Answers
Answer:
Explanation:
Sodium Chloride = Na⁺ + Cl⁻ = NaCl
Lithium bromide = Li⁺ + Br⁻ = LiBr
Magnesium fluoride = Mg ⁺² + F⁻ = Mg₂F.
Potassium Oxide = K⁺ + O⁻² = K₂O
Calcium sulphide = Ca⁺² + S⁻² = CaS
Aluminum Iodide = Al⁺³ + I⁻ = Al I₃
Barium bromide = Ba⁺² + Br⁻ = BaBr₂
Aluminum sulphide = Al⁺³ + S⁻ = Al₂S₃
Calcium Phosphide = Ca⁺² + P⁻³ = Ca₃P₂
Lithium Nitride = Li⁺ + N⁻³ = Li₃N
Magnesium Oxide = Mg⁺² + O⁻² = MgO
Aluminum Fluoride = Al⁺³ + F⁻ = AlF₃
Lithium Oxide = Li⁺ + O⁻² = Li₂O
Beryllium iodide = Be⁺² + I⁻ = BeI₂
What is the formula for silicon tetrabromide?
Answers
Answer:
SiBr4
Explanation:
Answer:
SiBr4
hope this helps!
Cytokinesis happens differently for plant and animal cells. Both separate cytoplasm between two new daughter cells. However, which type of cell cytokinesis looks like a balloon being separated by a string being pulled tightly between them?
Question 4 options:
Plant Cell cytokinesis
Animal Cell Cytokinesis
Both
Neither
Answers
Answer:
Animal Cell Cytokinesis
Explanation:
Answer: Animal cell
Explanation:) It refers to the process of cell division, which takes place during mitosis, is known as cytokinesis.
The process of cytokinesis is different for animal cell and plant cell.
Where, in case of plant cell, a separation, known as cell plate is formed along the center of the parent cell, which is responsible for the separation of the cells.
Whereas, in case of animal cell, the plasma membrane contracts itself along the center, until the two daughter cells are separated from each other.
Hence, from the given information of the question,
The correct answer is animal cell.
How many moles of gas would be present in a gas trapped within a 37.0 L vessel at 80.00C at a pressure of 2.50 atm
Answers
go here is the answer key
http://msschmidly.weebly.com/uploads/2/6/2/0/26201624/gases_review___calculations.pdf
According to ideal gas equation, there are 271472.7 moles of gas present in a gas trapped within a 37.0 L vessel at 80.0°C at a pressure of 2.50 atm.
What is mole?Mole is defined as the unit of amount of substance . It is the quantity measure of amount of substance of how many elementary particles are present in a given substance.
It is defined as exactly 6.022×10²³ elementary entities. The elementary entity can be a molecule, atom ion depending on the type of substance. Amount of elementary entities in a mole is called as Avogadro's number.
It is widely used in chemistry as a suitable way for expressing amounts of reactants and products.For the practical purposes, mass of one mole of compound in grams is approximately equal to mass of one molecule of compound measured in Daltons .Molar mass has units of gram per mole . In case of molecules, where molar mass in grams present in one mole of atoms is its atomic mass.
Substitution of values in ideal gas equation gives,n= 2.5×37/8.314×353=271472.7 moles.
Learn more about moles,here:
https://brainly.com/question/26416088
#SPJ3
Which term describes living things? abiotic biotic
Answers
Answer:
biotic
Explanation:
How many liters of nitrogen would be needed to react with 93.0 liters of hydrogen using the balance
equation below:
N2 + 3H2 → 2NH3
Answers
Answer:
7NH
Explanation:
Assignment Prompt
In this assignment, you will research the relationship between different types of energy when energy is
being transformed. You will present your findings in the form of bar graphs or pie charts that show the
forms of energy at different times in the process. You will then create a poster to display your findings.
Your poster should include a title, a brief description of the energy transformation you are showing, your
graphs, and works cited.
Assignment Instructions
Step 1: Gather materials and necessary information.
a) You will choose an energy transformation to show. Some of the ones you have learned about
include those that occur in a burning bonfire and a wind turbine.
• Do research to find out about an energy transformation that affects your daily life.
• Find out what the starting types of energy are and what the ending types of energy are.
• Decide how many steps in the process your poster will show.
• Create bar graphs or pie charts to show the relationship between the different types of
energy at different steps in the transformation process.
b) Be sure to keep a list of your references so you can cite them later.
Step 2: Decide on a title.
a) Begin by deciding on a title for your poster and writing it neatly at the top.
b) The title should identify the energy transformation you are showing.
Step 3: Create your graphs.
a) Decide how many graphs you will need to show the energy transformation.
b) You should have at least 3 graphs so that the steps of the transformation will be clear.
c) Each graph should be clearly labeled.
d) Careful use of color on your graphs will make them easy to read and understand.
Step 4: Decide on the descriptive words to include on your poster.
a) People looking at your poster may need more information than just the title and the
graphs. Decide on how you want to present the information your viewers need.
b) Keep the information as short as possible while still including what you need. Remember that
when people look at a poster, they focus on the graphics.
Step 5: Decide on the best layout for your poster.
a) You want to incorporate your text and visuals in a way that is attractive and attention-getting.
b) Keep your graphics as large as possible.
Step 6: Put your poster together.
Step 7: Cite your sources.
a) In the lower right-hand corner of your poster, create a section titled Works Cited.
b) List the resources you used to create your poster. A simple list of website titles and
addresses (URLs) is acceptable. If you used print sources, list the title, author, publisher, city,
and date. The print for this section can be small; it needs to be readable close-up.
Step 8: Identify yourself as the creator of the poster.
a) Place your name in the lower right-hand corner of the poster.
b) On the back, write your teacher’s name and the due date for the poster.
Step 9: Evaluate your poster using this checklist.
If you can check each criterion below, you are ready to submit your presentation.
Yes No Evaluation Question
Does your poster have a title that grabs interest and tells what your subject is?
Are the graphs clearly labeled?
Are the graphs bright and colorful?
Is the text on the poster clearly written so that the viewer understands what you are trying
to show?
Is it free from misspellings?
Is your poster laid out in a way that invites people to look at it?
Have you included your name and works cited?
Is your entire poster neat and attractive?
Step 10: Revise and submit your poster.
a) If you were unable to check off all the requirements on the checklist, revise your poster
before submitting it.
b) Ask your teacher for further instructions about presenting your poster to an audience of your
peers.
Resource Suggestions
• Bar Graph
• Pie Chart
please help! you need to make a poster with any kind of paper and no drawing and if you do any drawing on the poster make it the skill of a 6th grader 100 points plus brainly if you get it right
Answers
Answer:
give other guy brainliest
Answer:El mercantilismo en Gran Bretaña consistió en la posición económica de que, para aumentar la riqueza, sus colonias serían proveedoras de materias primas y exportadoras de productos terminados. El mercantilismo provocó muchos actos de lesa humanidad, incluida la esclavitud y un sistema de comercio desequilibrado.
Explanation:
Which is an energy source for a coyote?
Answers
Answer:
The coyotes are both a plant and meat eaters whose common food is 90% of their diet, is small animals. Rabbits, hares, birds, snakes, fish, crustaceans, and insects are all on the menu.
hopefully this is right :))
Answer:
sun
Explanation:
Hey I'm Chloe can you Help me, Thank you :)
What pigment, only present in plants, makes photosynthesis possible?
Answers
Answer:
la photosintesis viene de la clorofila de la planta
Determine the number of molecules present in 1.53 mol of carbon monoxide
Answers
Answer:
hi
Explanation:
this is my first time on this app so what do i do
Buoyancy, density, ductility and solubility describe the ________ of matter
Answers
Answer:
the answer is physical properties
An element ceases to be that element if the particle it loses or gains is a neutron.
True or false
Answers
Answer:
False
Explanation:
An element is named according to the number of protons in the nucleus. If it gains or loses a neutron, it becomes a different isotope of the same element.
The given statement is false.
Answer:
FALSEExplanation:
#CARRYONLEARNING
Determine the correct set-up below to determine what mass, in grams, of N2 is needed to completely react with 105 g F2 ?
Answers
Answer:
C: 1 mol F2/38 g F2
Explanation:
The reaction equation is;
N2 + 3F2 = 2NF3
Now, to know how many grams, of N2 is needed to completely react with 105 g F2 and since the molar mass of N2 is 28.02 g/mol, Molar mass of F2 is 38 g/mol, number of moles attached to N2 and F2 in the reaction are 1 and 3 moles respectively, then we will have;
105 g F2 × 1 mol F2/38 g F2 × 1 mol N2/3 mol F2 × 28.02 g N2/1 mol N2
Option C is Thus correct
Which of the following is not an example for electroplating? A Tin cans for storing food
B Chromium used on bath taps to get shiny appearance
C Copper used for making electrical wires
D To protect iron objects used in machineries, from corrosion
If you answer you will get brainiest
Please answer and thank
Answers
Answer:
C. Copper used for making electrical wires
Explanation:
When a coating of a particular metal is applied on another metal, the process is termed as electroplating. The process is carried by the process of electro-deposition. This process is carried on in order to enhance the quality of the objects manufactured. The coating helps in resistance and provides an attractive appearance to the object.
Option C. is not an example of electrocoating because on the copper wires no other metal coating is done. In all the other three options, coating has been done on the object.
Which of the following best describes the difference between metals and nonmetals?
a
metals tend to have low melting points and nonmetals have high melting points
b
nonmetals are more reactive than metals
c
metals are brittle and dull
d
metals have high melting points and are malleable, whereas, nonmetals have lower melting points and tend to be brittle.
Answers
Answer:
the answer is d.
Explanation:
because metals are refers to natural elements that are hard, shiney, opaque, and dense. nonmetals implies thise chemical substances that are soft, non-shiney, transparent and brittle.
Why are most anions basic in H2O? Give formulas of four anions that are not basic.
Answers
Answer:
The anions that can act as bases (conjugate bases of weak acids) have the capability to hydrolyse water and produce OH− ions. Cl−, Br−NO−3, SO2−4 are all conjugate bases of strong acids that don't have the capability to hydrolyse water and so they aren't basic.
Explanation:
questions.
1) The degree of polarity of a bond is indicated by
A. Ionization energy difference
B. The shape of the molecule
C. Electronegativity difference
D. The partial charges of the molecule
2) When electrons are shared unequally, chemists characterize
Answers
Answer:
d
Explanation:
the partial charges of the molecule
HELLP PLEASE
_ Na+Cl 2 -> _NaCl
reactant side number of atoms?
Na = ?
Cl = ?
Product side number of atoms?
Na = ?
Cl = ?
what is the final equation?
_ Na+Cl 2 -> _NaCl
Answers
Answer:
2Na+Cl2 -> 2NaCl
Explanation:
1Na+1Cl 2 -> 1NaCl (i'm assuming they want you to balance it so ill start with 1)
Na = 1
Cl = 2 (it is 2 because it is Cl2, meaning that there are 2; but remember that you cannot change this number only coefficients)
Na = 1
Cl = 1
We need to have 2 Cl on the product side
1Na+1Cl 2 -> 2NaCl
Now we need 2 Na on the reactants side
The final equation is
2Na+Cl2 -> 2NaCl
Now it is balanced
Na = 2
Cl = 2
--
Na = 2
Cl = 2
enzyme, fat, sugar. Classify them into the group of organic compounds to which they belong to
Answers
Answer:
Enzyme: speed up chemical reactions
- protein
Fat: give us energy
- lipid
Sugar: give us energy
- carbohydrate
GIVE BRAINLEST PLEASE
Can someone please fill in the blanks?
Answers
Answer:
g3gegsgehshhwwjwuwuwu2euyeeyeyyy
Answer:
helium formula He
Ammonia formula NH3
methane formula CH₄
chlorine formula Cl-
Explanation:
Equilibrium constant Kp for the reaction P4(s) + 6Cl2(g) 4PCl3(l) Kp = 1/ P6Cl2 Kp = P4Cl3/ P6P4 Kp = P4Cl3/ (P6P4) (P6Cl2) Kp = 1/ (P6P4) (P6Cl2)
Answers
Answer: [tex]K_p=\frac{1}{[p_{Cl_2}]^6}[/tex]
Explanation:
Equilibrium constant is defined as the ratio of pressure of products to the pressuure of reactants each raised to the power their stoichiometric ratios. It is expressed as [tex]K_p[/tex]
For the given chemical reaction:
[tex]P_4(s)+6Cl_2(g)\rightarrow 4PCl_3(l)[/tex]
The expression for [tex]K_p[/tex] in terms of gaseous is written as:
[tex]K_p=\frac{1}{[p_{Cl_2}]^6}[/tex]
what is the difference b/w combustion and synthesis reaction ?explain with example
Answers
Answer:
A synthesis reaction occurs when two or more reactants combine to form a single product in a double replacement reaction two compounds exchange elements. Combustion reaction occurs when a substance reacts quickly with oxygen combustion is commonly called burning. Example'- for synthesis reaction is iron+ oxygen —≥ water . Example:- for combustion reaction is often gaseous products.
may be this was ur answer I hope it might help u
I am wondering how to find out the blood type of my grandson...my daughter is A+..father is in question...she is stressed to the max on the father of this baby boy.
Answers
Answer:
A person can identify their blood type at home using a rapid blood typing kit. Using the kit requires a person to pierce a finger with a needle. The kit comes with a card that contains chemicals known as reagents. These test for the presence of the antibodies and Rh factor.
Explanation:
Just like eye or hair color, our blood type is inherited from our parents. Each biological parent donates one of two ABO genes to their child. The A and B genes are dominant and the O gene is recessive. For example, if an O gene is paired with an A gene, the blood type will be A.
List and Describe the two groups of clastic sedimentary rock.
Answers
Answer:
Clastic sedimentary rocks are formed from rock fragments or clasts; chemical sedimentary rocks precipitate from fluids, and biochemical sedimentary rocks form as precipitation from living organisms.
Sedimentary rock is classified into two groups based on how they form. They are clastic and chemical. Clastic sedimentary rock is formed as bits of weathered rock become cemented together. Because all kinds of rock are subject to weathering many different minerals can make up this group of rocks.
How would you describe the size of our sun compared to a red dwarf and a supergiant?
The sun is the same size as a red dwarf.
The sun is the same size as a supergiant.
The sun is smaller than the red dwarf and the supergiant.
O The sun is larger than a red dwarf but smaller than a supergiant.
Answers
Answer:
D is the answer
Explanation:
I could swear all of these are nobles gases but here’s the question.
Which one of these is NOT a Noble Gas
A) Argon
B) Helium
C) Xenon
D) Neon