Answers
Answer:
1) Reaction rate, in chemistry, the speed at which a chemical reaction proceeds. It is often expressed in terms of either the concentration (amount per unit volume) of a product that is formed in a unit of time or the concentration of a reactant that is consumed in a unit of time.
2) By collecting the hydrogen gas that is produced over water or in a syringe, rate graphs can be produced. The volume of gas produced and the time taken need to be recorded. The rate of the same reaction could be monitored by measuring the change in the mass of reactants as they react to form products.
Related Questions
it is sunny today is that whether or climate this isn't chemistry but...
Answers
Answer:
weather
Explanation:
Word Bank: Match each term with the sentence below
Electromagnetic Wave Medium Matter
Mechanical Wave Crest Compression
Longitudinal Wave Trough Rarefaction
Transverse Wave Energy Wavelength
__________: The highest point of a transverse wave
__________: The area in a longitudinal wave where the particles are close together.
__________: The ability to move or change an object, or what a wave carries.
__________: A wave that is caused when energy causes a vibration through a medium.
__________: Type of electromagnetic wave in which the energy runs at right angles to the wave.
__________: Type of mechanical wave in which the energy flows parallel to the wave.
__________: A wave that can travel through empty space, like light waves
__________: The lowest point of a transverse wave.
__________: Area in a longitudinal wave in which the particles are spread out.
__________: The material through which a mechanical wave travels.
Answers
Answer:
Electromagnetic Wave Medium Matter:The ability to move or change an object, or what a wave
Longitudinal Wave Trough Rarefaction: The area in a longitudinal wave where the particles are close together.
Transverse Wave Energy Wavelength: The highest point of a transverse wave
Explanation:
give me brainliest
Which compound forms a powerful acid and also contains a halogen?
H2S
HBr
Li2O
LiBr
Answers
Answer:
HBr is the strongest and its bond is what which makes it the strongest acid.
Explanation:
This acid is dangerous and highly poisonous than other acids. It can disunite instantly. And later then it forms the suspension.
and LiBr is not merely an acid and henceand HBr are the acids, amongst which HBr forms the strong acid component.
The strongest nature is due to the formation of hydronium ions.
The Hydrogen sulphide acid does not release hydronium ions on suspension.
Explanation:
yww
The compound HBr forms a powerful acid that contains a halogen as Bromine (Br). Thus, the correct option is B.
What are Halogens?Halogens may be defined as all sorts of chemical elements that construct a salt when it reacts with metal. There are mainly five halogens present in the periodic table of chemical elements: fluorine, chlorine, bromine, iodine, and astatine.
Option A and option C do not contain any forms of halogen. Hence, they are eliminated.
While LiBr is not able to form any sort of acids during reactions. Due to the presence of a partial positive charge on hydrogen and a partial negative charge on Bromine, HBr forms a strong bond and that makes it as a strong acid as well.
Therefore, the compound HBr forms a powerful acid that contains a halogen as Bromine (Br). Thus, the correct option is B.
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what is Brownian motion
Answers
It’s basically a physical phenomena constantly undergoing small, random fluctuations. What causes Brownian motion is because they are bombarded by other moving particles in the fluid. The larger particles can be moved by light, fast-moving molecules.
which of the following could form an ionic compound? check all that apply
Answers
Answer: Na+ And F- & CI- and K+
The Na+ and F- and Cl- and K+ both can form ionic compound.
What is ionic compound ?The ionic compound is the compound formed by the ions which is held together by ionic bond.
What is ionic bond ?The bond formed by the oppositely charged ions through electrostatic force of attraction is called ionic bond.
The complete transfer of valence electron is takes place .
The ions should be oppositely charge .
The electronegativity difference between ions should be high.
So, there are two options in the question is correct.
Na+ and F-
Cl- and K+
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A student mixes 250 milliliters of a strong base with 100 milliliters of a strong acid. What will the result be? *
a weak base
a weak acid
a stronger base
a stronger acid
Answers
Answer:
a Weak Base
Explanation:
I apoligise if im incorrect its been a while since I have taken the class.
in what area might Jupiter's moon, Europa surpass Earth.
Answers
Jupiter is the largest (most massive) planet in the solar system and the fifth (5th) in line from the Sun. Also, Jupiter comprises four (4) massive moons, which were discovered over four hundred (400) years ago by the Italian astronomer named Galileo Galilei and are usually referred to as the Galilean Moons, these include:
Lo.Callisto.Ganymede.Europa.Europa is the sixth (6) closest moon to Jupiter and most fascinating of the Galilean Moons.
Basically, Europa has a warm-water interior, an icy surface and a massive ocean of salty water beneath its thick ice shell. Thus, it's considered to be one of the celestial bodies that possesses life (alien creatures) outside of planet Earth.
Some of the areas in which Europa surpasses planet Earth include the following:
Europa is the smoothest celestial body found in the Solar System because it has minimal large-scale features such as mountains.Europa has a mass of [tex]4.7998[/tex] × [tex]10^{22}[/tex] kilograms, mean density of 3.013 [tex]g/cm^3[/tex] and mean radius of about 1560 kilometers; thus, it is 24.5% the size of planet Earth and 0.008 times as massive. A single orbit around Jupiter by Europa takes 3.55 Earth days to complete unlike planet Earth that has an orbit period of 365 Earth days (one year).Europa’s atmosphere has a surface pressure [tex]10^{-12}[/tex] times that of planet Earth i.e 0.1 micro Pascals.Read more: https://brainly.com/question/342849
a summary about liquid
Answers
Answer:
A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure. As such, it is one of the four fundamental states of matter (the others being solid, gas, and plasma), and is the only state with a definite volume but no fixed shape.
Answer:
Liquid takes the shape of any container it is put in. The atoms that make up a liquid are spread out, and move fast, but not as fast as gas. Liquid is the stage between solid and gas, concerning the water stages. Usually, a liquid can turn into a solid or gas, if it's temperature or environment is changed.
Is this good?
A group of similar organisms that can mate with each other and produce
fertile offspring. *
Natural Selection
Species
Fossil
Evolution
Answers
Answer:
Fertile Offspring.......
:)
Explanation:
✌❤❤
Based on the information from the movie, what can you
Conclude about the common chemical compound on
earth?
A
It's oxygen
B
its hydrogen gas
C
It's carbon dioxide
D
It's water
Answers
Answer:
a
Explanation:
it's the most common thought of element when you need a compound from earth
Explain why you think it is important to know the three different types of rocks. (Igenous, Metamorphic, Sedimentary)
Answers
Answer:
It is important to know the three different types of rocks because they contain clues about what the Earth was like in the past. Different rocks form under only certain conditions and can tell us something important about the past.
The study of rocks is very important to study the geography of rocks. To understand the Types of soil and rocks on the earth's surface.
What are three types of rocks?There are three different types of rocks igneous, metamorphic and sedimentary rocks. Igneous rocks are formed from melted rock. Sedimentary rocks are formed from slit and animal skeletons.
Metamorphic rocks are formed by changing heat and pressure underground. Rock and mineral are important to understand the material, structure and system of the earth.
The study of rocks help in science and geography. Basalt is used in building rocks. Granite is used to form a monuments. Pumice is used as a scrubbing material. Slate is used for roofing material of roofs.
Therefore, The study of rocks is very important to study the geography of rocks. To understand the Types of soil and rocks on the earth's surface.
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Most thermal conductors are made of which material?
Answers
Answer:
copper
Explanation:
Answer:
metal
Explanation:
please help with these questions, it is due soon
Answers
Can somebody plz answer both questions correct!!!! Only 1-2 sentences per question is fine :)
(WILL MARK BRAINLIEST)...promise :D
Answers
Answer:
1) A compound is the chemical combination of two or more elements into a single substance.
An atom is the smallest particle of an element.
2) Elements have only one kind of atom.
Compound always have more than one kind of atom.
Answer:
1) An atom is the smallest possible piece of a chemical element, and a compound can be composed of two or more separate elements
2) An element is made up of only one kind of atom and a compound is made up of two or more kind of atoms
Explanation:
homogeneous mixtures have ________ distribution.
Answers
Explanation: a homogeneous mixture forms when two or more substances are combined to make something uniform. In this type of mixture, the components must be evenly distributed troughout. Only one state of matter can be present and you can see individual ingredients.
The diagram shows several rock layers in an area. A scientist claims that an intrusion of magma (layer Y) formed
scientists claim?
A. Layer Y is partly covered by Layer X.
B. Layer X crosses over Layers W, Z, and Y.
OC. Layer Y is larger in area than rock Layer Z.
D. Layer Z is parallel to Layer X, which was depostied before Layer Y,
Answers
Answer:
well x is on top :/
Explanation:
so it should be x
A scientist claims that an intrusion of magma ( layer Y ) formed, scientists claim Layer Y is larger in area than rock Layer Z.
What is magma ?All igneous rocks are created from magma, which is a naturally occurring substance that is molten or semi-molten. The Earth possesses magma beneath its surface, and other terrestrial planets and several naturally occurring satellites have also been confirmed to have magmatic activity.
Since molten rock behaves similarly to a thick, pasty material within the Earth, the word "magma" is derived from the Italian language. Another name for molten rock is lava, which is an Italian word that meaning to flow.
The upper mantle and the lower section of the Earth's crust are where magma first forms. The existence of magma is essential to comprehending the geology and morphology of the mantle because the majority of the mantle and crust are solid.
Thus, option C is correct.
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What is formed when atoms of two or more elements bond in a chemical reaction? A.Mixture B.Elements C.Atoms D.Compound
Answers
Answer: D. Compound.
Explanation:
This is high school chemistry. I’m in 8th grade, this be sooooo easy tho.
Answer:
C: Atoms
Explanation:
Chemical bond formed when one or more electrons are transferred from one atom to another.
What statement correctly describes gravity
A. An attractive force that acts between all objects through contact
B. An attractive force that acts between all objects without contact
C. A repulsive force that acts between all objects through contact
D. A repulsive force that acts between all objects without contact
Answers
Answer:
B
Explanation:
Answer:
B: An attractive force that acts between all objects without contact.
Explanation:
I took the test
The Texas high plains region does not revive much rain. It is reasonable to predict that this region, compared to other ecoregions, would have
Answers
Answer:
Less soil erosion
Explanation:
Due to the low amount of rainfall in this region, it is easier to say that the region compared to other ecoregion will suffer less soil erosion.
Erosion is usually the washing away of the top layer of the soil. Rainfall is one of the most important element that causes erosion. Surface runoff for an extended period of time can remove the topmost layer of the earth on which plant can grow. This starves the soil of its rich nutrients and minerals.
The partial Lewis structure that follows is for a hydrocar-bon molecule. In the full Lewis structure, each carbon atom satisfies the octet rule, and there are no unshared elec-tron pairs in the molecule. The carbon—carbon bonds are labeled 1, 2, and 3. (a) How many hydrogen at-oms are in the molecule? (b) Rank the carbon–carbon bonds in order of increasing bond length. (c) Which carbon—carbon bond is the strongest one? [Sections 8.3 and 8.8]A C is double bonded (bond 1) right to C, which is single bonded (bond 2) right to C. That C is triple bonded (bond 3) right to C.
Answers
Answer:
See explanation
Explanation:
a) considering the structure of the compound, it has 5 hydrogen atoms. Three are attached to C-1, one is attached to C-2 and 1 is attached to C-4.
b) (bond 2)> (bond 1) >(bond 3). As we move from single to triple bond, the magnitude of s character of the bond increases hence the bonds become shorter. Single bonds are longer than double bonds and double bonds are longer than triple bonds.
c) (bond 3) the triple bond is the shortest and strongest of all the bonds. The shorter a bond, the stronger it is.
what happens when you add a electron to a hydrogen atom
Answers
Answer:
Explanation:
If the electron escapes the Hydrogen atom is positively ionized. Similarly, the Hyrogen atom can sometimes bind another electron to it. Such a Hydrogen atom is negatively ionized
What two gases are produced during the electrolysis of water?
Answers
Answer:
hydrogen and oxygen.
Explanation:
if 2.2 pounds is equal to a Kilogram. Convert 102 Kg into pounds show
all steps involved in your calculation. Show all steps involved in this calculation
Answers
Answer:
224.4pounds
Explanation:
Given;
2.2pounds = 1 kg
Convert;
102 kg into pounds
Solution:
From the conversion factor, we see that a kg is more than pound when compared. This will give us an idea of our answer;
1kg = 2.2 pounds
the amount of pounds of the unknown = y
if
1kg = 2.2 pounds
102 kg = y pounds
Cross multiply;
y = 102 x 2.2 = 224.4pounds
How is light produced in an atom?
Answers
Answer:
light is the result of electrons moving between defined energy levels in an atom called shells.
Explanation:
when something exited an atom like collision with another atom or a chemical reaction, an electron may absorb energy boosting it to a higher level shell.
In which substance are the particles close together and slowly moving past each other? Air, Ice, Steam or Water?
Answers
If it’s incorrect, I’m sorry
Can you guys help me out??
I2KI+ Pb(NO3)2---- PbI2+ 2KNO3 is what type of reaction?
* Decomposition
* Replacement
* Synthesis
Answers
what mass of magnisium bromide is formed when 1.00 g of Mg + br
Answers
Mass of Magnesium bromide : 5.76 g
Further explanationComplete question
What mass of Magnesium bromide is formed when 1.00 g of magnesium reacts with 5.00 g of bromine?
Reaction
[tex]\tt Mg+Br_2\rightarrow MgBr_2[/tex]
mol Mg
[tex]\tt \dfrac{1}{24}=0.042[/tex]
mol Br₂
[tex]\tt \dfrac{5}{160}=0.0313[/tex]
Limiting reactants : Br₂(smaller)
mol MgBr₂ = mol Br₂=0.0313
mass MgBr₂ :
[tex]\tt 0.0313\times 184,113 =5.76~g[/tex]
PbSO4, Spell out the full name of the compound.
Answers
Answer:
Lead (II) Sulfate
Explanation:
Don't forget to add the (II) marking indicating that lead has a charge of 2+ (because Sulfate has a charge of 2-, balancing the ion).
The full name of the compound is Lead sulfate.
What are Ionic Compounds?
An ionic compound is a compound held together with an ionic bond, or a bond that utilizes opposite charges to be held together
Ionic compounds are named by stating the cation first, followed by the anion.
Positive and negative charges must balance.
Some anions have multiple forms and are named accordingly with the use of roman numerals in parentheses.
Ternary compounds are composed of three or more elements.
Therefore, The full name of the compound is Lead sulfate.
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PLEASE HELP!!!!!
What role do chemical processes play in the operation of the flashlight?
Answers
Swim ability is it materials ability to burn in the presence of
Answers
Answer: Flammability is a material's ability to burn in the presence of oxygen.
Explanation: Chemical properties can be observed only when the substance changes into one or more different substances through chemical reactions or transformations. One of the chemical properties is flammability.
Flammability is a material's ability to burn in the presence of oxygen.
Remember, oxygen doesn't burn. Precisely flammable substances obtain substances that burn. Oxygen remains an oxidizing agent, which means it supports the combustion process. Oxygen causes other objects to catch fire at low temperatures and burns hotter and faster. But oxygen itself does not burn. Consequently, if you at present deliver fuel and fire, adding oxygen will provide the fire.
Carbon dioxide is the result of combustion. An example can be seen in firewood in a fireplace. One of the chemical properties of carbon-based wood is having the ability to burn. Chemically the wood turns into carbon dioxide when it burns and leaves a residue of ash. Furthermore, this ash residue cannot be turned back into the wood. Chemical changes result in new substances.
Consider an example of a combustion reaction to methane gas:
Our balanced equation for methane combustion implies that every one CH₄ molecule reacts with two O₂ molecules. The product of combustion is one carbon dioxide molecule and two steam or water vapor molecules.
