Answer:
c
Explanation:
The one that is chemical property is flammability. The correct option is C.
What are chemical properties?Chemical properties are those properties that do not change by changing the size or shape of the elements. They are the quality that can only be formed by altering a substance's chemical identity is referred to as a chemical property, and it can occur during or after a chemical reaction.
The main chemical properties are flammability, pH, toxicity, reactivity, etc. Flammability is a property of the burning of an element. If a substance burns quickly and readily, it is flammable. If a substance does not burn quickly and readily, it is called inflammable. Some substances are wood, methanol, etc.
Thus, the correct option is C. Flammability.
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when molecules are joined I an ordered structure
Answer:
ice
Explanation:
2. Why is acid rain of particular interest of study?
Acid rain is of particular interest to study because it demonstrates the areas of geographical locations which are highly susceptible to pollution and scientists are able to reveal some valid conclusions.
What is Acid rain?Acid rain may be defined as the type of rain that significantly contains an excess amount of acids. The rain becomes acidic because of carbon dioxide, nitrogen dioxide, and sulfur dioxide when liberated into the air as pollutants. All these liberated compounds dissolve with raindrops in order to form carbonic acid, nitric acid, and sulphuric acid respectively.
Acid rain thus formed is very harmful as it destroys organisms and other objects on which it falls. It also destroys aquatic life, soil properties, crop productivity, etc. Acid rain reacts with marble and gradually corrodes it.
The overall concentration of acid rain at a particular location illustrates its degree of pollution, impurities in the environment, etc.
Therefore, acid rain demonstrates how much an area is susceptible to pollution. It also delivers a good concept for scientists to check it.
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When you heat water it turns into a
gas or liquid or gas
Answer: Gas
Explanation:
il give brainly and 50 points if u answer my question
Answer: Whats ur Question?
Explanation:
How many kilograms (kg) are in 6.89 pounds (lb)?
Answer:
1.4175902 kilograms
Explanation:
Answer:
3.125 kilograms is what 6.89 pounds is
What are 2 indications that a chemical change has occurred?
Answer: The color has changed or the formation of light and heat. Also, the temprature will change as well.
Explanation:
A 5.0 km race is scheduled for this weekend. How many miles is this race?
Answer:
3.10686
Explanation:
A 5.0 km race is scheduled for this weekend. Total miles is this race is 3.10686.
What is kinetic energy?Kinetic energy is a form of energy it possess when any object or person is in motion . It can be defined as the work needed to be done to produce a motion in a object from rest position.
If we want to acceleration in an object then we must apply a force on a object to give motion so we can say that we required to do work for acceleration and then we can say that required is equal to kinetic energy.
Mathematically,
Kinetic energy =1/2mv^2
Where
m = mass of object.
v = velocity of object
Kinetic energy is vector quantity it means that it have both i.e magnitude and vector. . It can be defined as the work needed to be done to produce a motion in a object from rest position.
S.I unit of Kinetic energy is Joule.
Therefore, A 5.0 km race is scheduled for this weekend. Total miles is this race is 3.10686.
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what mass of copper is equivalent to 0.7moles?
The study of chemicals is called chemistry.
The correct answer is [tex]1.055* 10^{-22}[/tex].
Mass is defined as the Mass is the quantity of matter in a physical body. It is also a measure of the body's inertia, the resistance to acceleration when a net force is applied. An object's mass also determines the strength of its gravitational attraction to other bodies.
The formula is used is as follows:-
[tex]= \frac{1 mole}{6.022*10^{23}} *\frac{63.546}{1mole}\\\\=1.055*10^{-22}[/tex]
Hence, the correct answer is:- [tex]1.055*10^{-22}[/tex]
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Mass describes:
A.)How crowded particles are in an object.
B.) Amount of particles in an object.
C.) Size of an object
Answer:
amount of particles
Explanation:
Mass is the number of atoms in an object. That is why mass stays constant wherever you go unless the object magically gains or loses atoms
What is the volume of a box measuring 3cmX6cmX4cm
Answer:
3×6= 18
18x4=72
The volume of the box is 72 cm^3
Study ISLAND OLEASE HELPP
Answer:
D) Magnesium :)
Explanation:
Answer:
D. Magnesium
Explanation:
Which term describes the information that a scientist gathers during an investigation? Data, hypothesis, observation, variable and why HURRY
During the research, the scientists collect the details and observations based on the information called data. Thus, option A is accurate.
What is data?A data is set of facts and observations including textual information, graphs, images, etc. It includes all the measurements and observations collected during the research work. The hypothesis is a thesis statement or a theory.
Observation in research is the gained information and facts during the research process that involves the recording of the data using some sort of tools. While variable is the set that can vary or change.
Therefore, the correct option is A. data.
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What is the name of this element?
Answer:
Tungsten
Explanation:
In one second an ant dragged an object 1 mm. What was its speed in cm/min?
Answer:
The speed of the ant is 6 [tex]\frac{cm}{min}[/tex]
Explanation:
Speed is a magnitude that expresses the relationship between the space traveled by an object, the time used for it and its direction. In other words, velocity relates change in position (or displacement) with time by:
[tex]speed=\frac{distance}{time}[/tex]
In this case:
speed= ?distance= 1 mmtime= 1 secondReplacing:
[tex]speed=\frac{1 mm}{1 second}[/tex]
Being 1 mm equivalent to 0.1 cm and 1 seconds equal to 0.01667 minutes then:
[tex]speed=\frac{1 mm}{1 second}=\frac{0.1 cm}{0.01667 min}[/tex]
speed = 6 [tex]\frac{cm}{min}[/tex]
The speed of the ant is 6 [tex]\frac{cm}{min}[/tex]
Any body tell me Iron salt and water produced what
iron salts react with water to form hydrated iron ( III ) oxide which is basically rust
hope that helps :)
ALOT OF POINTS !! PLEASE HELP DUE SOON!!
Mistakes to avoid using mean:
Mistakes to avoid using median:
SORRY
Find the unit rate. 14 apples for 2 pies
Your answer
Is?
Answer:
7
Explanation:
You have to divide 14 by 2 to find the unit rate/constant of proportionality.
Answer:
7
Explanation:
Suppose you have a lead ball with a mass of 454g. What is it’s volume? (Density of lead is: 11.35 g/cm3) (show your work)
Answer:
The answer is
40 mLExplanation:
The volume of a substance when given the density and mass can be found by using the formula
[tex]volume = \frac{mass}{density} [/tex]
From the question
mass of lead = 454 g
density = 11.35 g/cm³
The volume of the lead is
[tex]volume = \frac{454}{11.35} [/tex]
We have the final answer as
40 mLHope this helps you
An object has a density of 10.00 g/mL. If the object has a volume of
25.00 ml, what is the mass?
Answer:
The answer is
250 gExplanation:
The mass of a substance when given the density and volume can be found by using the formula
mass = Density × volumeFrom the question
volume of object = 25 mL
Density = 10 g/mL
The mass of the object is
mass = 25 × 10
We have the final answer as
250 gHope this helps you
Which of these is an example of a chemical change?
A:breaking glass
B:melting ice on windshield
C:burning gasoline
D:denting a bumper
Answer:
C. burning gasoline
Explanation:
A chemical change happens when a chemical substance is TRANSFORMED into one or more different substances. In the other three examples, nothing is being chemically transformed.
Find the density of a substance with a mass of 5.0 kg and a volume of 43 m3.
Scientists often _________________________ and _______________________ to help them interpret complex ideas. *
Answer:
no sir
Explanation:
How might a scientist compare theories by doing an experiment?
A. Make sure that the experiment is properly controlled.
B. Do an experiment which could only apply to one of the theories.
C. Check if the experiment gives the same results when it is repeated.
D. See which theory does a better job of explaining the results of the experiment.
The number behind the x is always
Answer:
being multiplied by x
Explanation:
I think,...
hope this helps :)
Definition of organelles:
Answer:
Explanation:
A structure or part that is enclosed within its own membrane inside a cell and has a particular function. Organelles are found only in eukaryotic cells and are absent from the cells of prokaryotes such as bacteria.
what is the molecular activity of matter I NEED THIS ANSWERED FAST PLEASE
Answer:
Chemistry is the study of matter. Matter is made up of extremely tiny particles called atoms and molecules. Atoms and molecules make up the three common states of matter on Earth—solids, liquids, and gases. The particles of a liquid are attracted to one another, are in motion, and are able to move past one another.
Explanation:
what is mean by scientific approach in chemistry
brief it
Answer:
scientific approach
Explanation:
Method of investigation in which a problems is First identified and observations, experiment are done
PLEASE HELP ME! I really need help coming up with a three course meal idea, I need this for chemistry, can someone help me please? I need an appetizer, a main course, and a desert. If you could find some recipes online, they don't need to be specific but do need at least five different ingredients each, that would be awesome. If you do do this, you can either list the website or type the recipe itself, I mainly need the numbers, like temperatures, amount of each ingredient, time cooking, stuff like that. I will mark whoever can do this as brainliest
appetizer - sausage w/ cheese dip
https:// www.platingsandpairings. com/sausage-bites-mustard-dipping-sauce/
Main course - Stuffed peppers
https:// www.bettycrocker. com/recipes/stuffed-peppers/63e29e18-903e-467c-aec5-fba4ce3a138f
Dessert - Lava cake
https:// sallysbakingaddiction. com/chocolate-lava-cakes/
9.56 x 10^5 cg is how many grams?
Answer:
9.56×10¯⁷ g.
Explanation:
Mass in cg = 9.56×10¯⁵ cg
Mass in g =.?
Thus, we can convert 9.56×10¯⁵ cg to grams (g) as illustrated below:
Recall:
1 cg = 0.01 g
Therefore,
9.56×10¯⁵ cg = 9.56×10¯⁵ cg × 0.01 g / 1 cg
9.56×10¯⁵ cg = 9.56×10¯⁷ g
Therefore, 9.56×10¯⁵ cg is equivalent to 9.56×10¯⁷ g.
8th Grade Checkpoint 1
Which statement accurately describes the atoms of a specific element?
An iridium, Ir, atom contains 77 protons inside the nucleus and 115 neutrons outside the nucleus.
palladium, Pd, atom contains 46 electrons outside the nucleus and 45 neutrons inside the nucle
An antimony, Sb,atom contains 51 protons inside the nucleus and 51 electrons outside the nucleu
A mercury, Hg, atom contains 80 electrons and 80 protons inside the nucleus.
Answer:
Antimony, Sb, an atom contains 51 protons inside the nucleus and 51 electrons outside the nucleus.
Explanation:
Option “C” is correct because protons exist inside the nucleus and electrons exist outside the nucleus. Moreover, Sb has the number of protons 51 that is found in the nucleus and it has 51 electrons that exist outside the nucleus. However, the nucleus contains protons and neutrons while electrons exist outside of the nucleus. All the given options do not follow such condition therefore, all the statements are incorrect accept option 3rd.
