Answers
A chemical property of a substance is a certain characteristic that can only be observed by participating in a chemical reaction. Alternatively, a chemical property of a substance is something that can only be observed when the substance undergoes a chemical change.
I'm not sure what you're supposed to do with the first four boxes; all four are examples of chemical properties. Do you have to name the specific type of chemical property as given in the description? If so, the following would be my answers:
Flammability/Combustibility: The ability of a substance to burn.
The next two are quite strange; I'm not aware of a term that cleanly describes reactivity with water or acid. I suspect that, given the level of the material here, the general property of "reactivity" might be the answer for both the second and third descriptions
(Water-)reactivity: Some substances react when put in water.
(Acid-)reactivity: Some substances react when put in acid.
Light sensitivity: Light can interact with some things to form new substances.
As for the chart, I've filled it in as shown in the attached image. Please take care to double-check what I've written; in particular, when it comes to the property, I might have used a different term from what you were taught in class or provided in some other resource that I don't have access to. I've also color-coded qualitative/quantitative and physical/chemical for your convenience.
Related Questions
when combined the two substances together in the cup, the product can be described as a ____ or ____ (there are two possible answers . you just need to choose one )
1. white gas
2. white liquid
3. white solid
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Why can't hydrogen be grouped in a family?
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Answer:
A Family Portrait
That element is NOT in the family. When we told you about families, we said that they were groups of elements that react in similar ways. Hydrogen is a very special element of the periodic table and doesn't belong to any family. While hydrogen sits in Group I, it is NOT an alkali metal.
Answer:
Explanation:
The chemical properties are so different and cannot be group into a family Hydrogen is the simplest, smallest and lightest of the elements. Unlike the other elements of the periodic table, the combination of properties it exhibits doesn't match any one single grouping or family.
Select the correct answer.
Copper carbonate (CuCO3) reacts with hydrochloric acid (HCl) according to this equation:
CuCO3(s) + 2HCl(aq) → CuCl2(aq) + H2O(l) + CO2(g).
Which statement correctly describes the substances in this reaction?
A.
Exactly one product and two reactants are either liquid or dissolved in water.
B.
Exactly one of the reactants is in a water-based solution, but none of the products are.
C.
The reactants include both a liquid and a gas.
D.
Exactly one reactant is a solid, and exactly one product is a gas.
E.
The products include a solid, a liquid, and a gas.
Answers
Answer:
I think the answer would be option d.
hope it helps.
If the electromagnet in the PhET simulation is disconnected from the battery, the compass needle will...
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Answer: Point north.
What type of chemical reaction is given by the following balanced equation:
Al₂O3 → AL+ O₂
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Answer:
Decomposition
Explanation:
If her body were functioning correctly, this is what would happen with starch/glucose
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Hope that helps!!
An increase in the bat population would most likely result in
А
Decrease in mold growth
B
An increase in the outisde insect population
с
A decrease in bat bug population
D
A decrease in the outside insect population
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Answer:
Explanation:
D
A decrease in the outside insect population
A student uses 0.0821 L• atm/mol • K as the value of the gas constant. What is most likely true about the variables in the ideal gas law?
P has the units of liters • atmospheres, and T has the units of kelvin.
P has the units of liters • atmospheres, and T has the units of degrees Celsius.
V has the units of liters, and T has the units of kelvin.
V has the units of liters, and T has the units of degrees Celsius.
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Answer: V has the units of liters, and T has the units of kelvin.
Ideal gas law: p·V = n·R·T.
atm · L = mol · L·atm/mol·K · K; both side of equatation have same values.
R = 0,08206 L·atm/mol·K; universal gas constant.
p is pressure of the gas, unit is standard atmosphere (atm).
V is volume of the gas, unit is liters (L).
n is amount of substance of the gas; unit is mole (mol).
T is temperature of the gas, unit is Kelvin (K
Hope this helps!!
Explanation:
Answer: V has the units of liters, and T has the units of kelvin.
Explanation:
Level 3
Q1
Forces that are equal but opposite
are called
A. Net force
B. Friction
C. Centripetal force
D. Balanced forces
Answers
option D Balanced force
what is the conclusion that males are stronger than females
Answers
How many valence electrons are in an atom of Zinc (III)
Atomic number 30
Atomic mass 65.38
a 12
b 35
c 3
d 30
Answers
Answer:
A.) 12
Explanation:
The number of valence electrons= the group number
Answer:
c) 3 valence elcertons
How to name the hydrocarbons? according to IUPAC i guess?
Answers
Answer:
hydrocarbons are compounds which contains Hydrogen and carbon
5. What is the charge on a single proton?
Answers
Answer:
it may be +1 or -1 hope this help
An atom is a kind of stuff that cannot be further decomposed chemically. Therefore, the charge on a single proton is +1.
What is atom?
The building block of an element is an atom. An atom is a kind of stuff that cannot be further decomposed chemically. The three main components of an atom are protons, neutrons, plus electrons.
Some substances are either bigger or smaller than atoms. Instances of chemical species that aren't commonly regarded as atoms include protons, neutrons, and electrons, which are atom-related particles. Atoms make up molecules and compounds, however they are not actual atoms. Salt is an example of a molecule and a compound (NaCl). The charge on a single proton is +1.
Therefore, the charge on a single proton is +1.
To learn more about atom, here:
https://brainly.com/question/29712157
#SPJ6
Two different gases are stored inseparate closed containers. If both gases have a temperature of 50°C, which
statement is true?
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Answer:
Explanation:
there should be more showing than telling
Label each process as a physical or chemical change and state how you know.
fogging a mirror with your breath
breaking a bone
mending a broken bone
burning paper
slicing potatoes for fries
mixing sugar with coffee
frying chicken
a nail rusting
paper ripping
wood burning
mixing water and food coloring
food molding (rotting)
writing on paper
dyeing fabric
Answers
Fogging a mirror with your breath is a physical change because it involves a phase change of water vapor condensing and adsorbing to the mirror surface. Phase changes are physical changes.
Breaking a bone is a physical change insofar as we're focusing on the "breaking" part.
Mending a broken bone, however, is a different story. Bones are living things: They consist of tissues that in turn consist of cells. The actual mending process involves some very complicated biochemistry. Suffice it to say that mending a broken bone would be a chemical change.
Burning paper is a chemical change. Burning anything implies combustion, which is a chemical reaction where some fuel is oxidized (usually by oxygen gas, producing carbon dioxide gas and water vapor).
Slicing potatoes for fries is a physical change. You can slice, dice, smash, mash, stretch, bend, compress, or grind a potato: What you will have is still a potato (okay, there are some chemical changes going on as you're rupturing cells in the process, causing them to release their contents which may participate in chemical reactions). But the key, again, is that cutting up some material doesn't fundamentally change the chemical identity of that material.
Mixing sugar with coffee actually involves two physical processes: the mixing and the (presumed) solvation of the solid sugar particles as they dissolve into the coffee. In either case, either mixing or dissolving would be a physical change. The sugar molecules are still in the coffee and are chemically unchanged.
Frying chicken is a chemical change. In fact, frying chicken likely entails several different types of chemical changes. The common thread among them is that frying involves breaking chemical bonds in and on the chicken by the addition of thermal energy, and new chemical bonds end up being formed. That's the hallmark of a chemical change.
A nail rusting is a chemical change. Rusting is an electrochemical process; the familiar corrosion of iron into rust is, at bottom, a chemical reaction where iron reacts with oxygen to form iron oxides (often catalyzed by the presence of water and salts).
A paper ripping is analogous to slicing potatoes: it's a physical change. If you ripped one sheet of paper into two halves, each half would retain all the chemical properties of the original sheet.
Likewise, wood burning is analogous to burning paper, and as such is a chemical change. Again, combustion is a chemical process.
As we said earlier with sugar in coffee, mixing in itself is a physical process. While it may seem like you've permanently changed the nature of the water by dyeing it with food coloring, the molecules comprising the food coloring are simply dispersed within the vast sea of water molecules. There are no intramolecular bonds that are broken or formed; the chemical identities of all the substances here are preserved. So, this is a physical change.
Food molding (rotting) is a chemical change. Rotting is biochemical decomposition: the chemical bonds that make up the food are broken down by enzymes released by the mold.
Writing on paper, whether it be with a pen, pencil, crayon, or marker, is a physical change. The molecules from the writing instrument are physically stuck to the paper. But unless you're writing on paper by, say, burning letters onto it, there are no chemical changes occurring when the writing instrument meets the paper.
As with writing on paper, dyeing fabric can be a physical change. The dye consists of molecules that interact with light in a way that we perceive a certain color. When dyeing fabric, these molecules are transferred and fixed into the fabric by adsorption, absorption, and other intermolecular phenomena. But the molecules of the dye (and the molecules in the fabric) don't experience any breaking and forming of bonds. All of the substances involved retain their chemical identities.
However, it's possible that, depending on the dye, there may be chemical changes involved. Some dyes, appropriate named "reactive dyes," undergo chemical reactions with their substrate (which, in this case, would be the fabric), or dyes may be used that undergo chemical reactions with one another, both of which would constitute chemical changes. And it can depend on what you mean by "dyeing": Bleaching a colored shirt can technically be conceived of as "dyeing" the shirt white, and this process involves cleavage of bonds within the color-producing molecules in the fabric by reacting with the molecules in the bleach.
So, for dyeing fabric, it can be a physical or chemical change depending on the dye.
Lions eat antelopes. Antelopes eat plants.
A lion is eating an antelope.
Which of these statements correctly describes what is happening when a lion eats an antelope?
A carnivore is eating its prey
B herbivore is eating its prey
C predator is eating a carnivore
D prey is eating a herbivore
Answers
Answer:
A
Explanation:
lions only eat meat, antelopes are prey
b Explain what would have happened if Jilly
had thrown the object with more force.
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Answer:
force had thrown the object with more
Answer:
If an object is in motion and more force is applied to it, the object will begin moving faster
Explanation:
don't have any (sorry:[ )
Elaborate on the nuclear model of the atom. The nuclear model describes the atom as protons and neutrons distributed throughout a sea of electrons. The nuclear model describes the atom as electrons uniformly scattered in a positive cloud of protons. Eliminate The nuclear model describes the atom as a small, negative center enveloped by a cloud of positive particles. The nuclear model describes the atom as a dense, positive nucleus surrounded by a cloud of negative electrons.
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Answer:
D.) The nuclear model describes the atom as a dense, positive nucleus surrounded by a cloud of negative electrons.
Answer
The nuclear model describes the atom as a dense, positive nucleus surrounded by a cloud of negative electrons.
True/False. A program is an algorithm that has been coded into something that can be run by a machine. *
Answers
Answer:
true
Explanation:
The surface currents of Earth’s oceans are most likely created by which of the following?
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Answer:
global wind patterns. the rotation of the Earth. the shape of the ocean basins.
Explanation:
magine that you need to take a medicine that the doctor has prescribed for you. Explain why scientists who developed that medicine would need to know whether or not the compound in that medicine is polar. How might a polar medicine behave differently as it dissolved in the body than a nonpolar medicine would?
Answers
Answer:
hi
Explanation:
The compound in medicines should be non polar. Therefore scientists need to be sure of using compounds that are non polar in nature so they pass through the cell membrane and enter into the blood circulation of the body and perform its due function.
The empirical formulae of a compound is CH2O. The relative formula mass for the molecular formula is 180. What is the molecular formula?
Answers
Answer:
ch20 is the empirical formula for glucose , c6h1206 is the molecular formula .
HELP
How will we use Hess laws to determine the ΔH of the overall equation for the combustion of mercury
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Answer:
Enthalpy is a property of a thermodynamic system, defined as the sum of the system's internal energy and the product of its pressure and volume, H = U + pV
Explanation:
A 40 g gold coin is heated from 10°C to 50°C (CAuis 0.13 J/g−°C). What is the △H?
Answers
The answer would be +208 J.
Which of these is NOT found in the earths crust?
Oxygen
Iron
Sulphur
Helium
Answers
Explanation:
helium
Helium gas is not found in earth crust
PLESE HELP! Which of the following sugar solutions is the most concentrated?
Select one:
a. 25 g of sugar in 60 mL of water
b. 2 g of sugar in 100 mL of water
c. 15 g of sugar in 25 mL of water
d. 12 g of sugar in 30 mL of water
Answers
c.15gof in25mlof wather
The sugar solution that is the most concentrated is 15 g of sugar in 25 mL of water.
CONCENTRATION:
The concentration of a solution is related to the amount of a substance and its volume. The concentration of a solution is directly proportional to the amount of a substance but inversely proportional to the volume. This means that the concentration increases with an increasing amount of substance but decreases with an increasing volume. According to this question, 15g of sugar is the highest amount and it dissolves in 25mL of water, which is the lowest volume. Therefore, it is the most concentrated sugar solution.Learn more at: https://brainly.com/question/202460?referrer=searchResults
How many moles are in 435 grams of sulfur, S?
Answers
Answer:
32.065 is the correct answer.
35. 124.31 g of silver nitrate reacts with 52.89 g of sodium chloride.
g
a. What is the mass of the products?
Answers
Answer: Thus mass of products is 177.2 g
Explanation:
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.
The balanced chemical reaction is:
[tex]AgNO_3+NaCl\rightarrow NaNO_3+AgCl[/tex]
mass of silver nitrate [tex](AgNO_3)[/tex] = 124.31 g
mass of sodium chloride [tex](NaCl)[/tex] = 52.89 g
mass of reactants = mass of silver nitrate [tex](AgNO_3)[/tex] +
mass of sodium chloride [tex](NaCl)[/tex] = 124.31 g + 52.89 g = 177.2 g
Thus mass of products = mass of reactants = 177.2 g
What is the formula for sulfate?
What is the charge of sulfate?
What is the correct formula for copper (II) sulfate?
Answers
Answer:
SO₄²-, -2, CuSO4
Explanation:
Dang that was long.
How many moles of water (H2O) are produced when 2 moles of KMnO4 react with plenty of HCl?
2 KMnO4 + 16 HCl → 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
A. 2
B. 16
C. 8
D. 5
Answers
Answer:
16
Explanation:
2 KMnO4 (aq) + 16 HCl (aq) → 2 MnCl2 (aq) + 2 KCl (aq) + 5 Cl2 (g) + 8 H2O (l)
This is an oxidation-reduction (redox) reaction:
2 MnVII + 10 e- → 2 MnII (reduction)
10 Cl-I - 10 e- → 10 Cl0 (oxidation)
KMnO4 is an oxidizing agent, HCl is a reducing agent.
This is a gas evolution reaction, Cl2 is the formed gas.
