Explanation:
solvent bc when you remove it it becomes more concentrate
llodine solution is added to a sample taken from the boiling tube after 10 minutes and
60 minutes.
Suggest what you would see in these samples.
03
Answer:
I have no idea sorry but if you payed attention to what they are telling you you won't half to cheat
One day on her walk home from school, Leann noticed some rust on an old car.
She remembered that chemical equations can summarize what happens in a chemical reaction. What is the name of the two parts found on the left side of the equation below?
4 Fe + 3O2 → 2Fe2O3
Answer:
Iron and Oxygen
Explanation:
Fe is Iron and O2 is Oxygen
what happens when u mix blood and water
Answer:
Blood and water
Explanation:
help please.
4. Two unknown elements react to a form a single compound. Element 1 is shiny, malleable, and conductive. Element 2 is a non-conductive gas. When they react, what would you expect to be true about the compound produced? (AKS 2a DOK 3)
a.The compound will probably have properties of both elements like a metalloid.
b.The compound will probably have high boiling points and melting points and will be conductive in solution.
c.The compound will probably have low boiling and melting points and will not be conductive in solution.
d.The compound will probably have high boiling and melting points and will not be
Answer:
this is my old account and these still dont have answers
Explanation:
I NEED HELP HERE PLEASE !!!
A gas has a volume of 4 liters at 3 atm. To expand the volume to 7000 ml, what the new pressure
(in atm) have to be?
Answer:
Gas it too expensive I need to get a job. I have no money to use at the atm
Explanation:
if your car is on 7000 ml it has issues and you need to take it to a mechanic.
what form of matter has a definite shape and takes up space?
Answer:
If something is in a solid state of matter, it has a definite shape and volume. The volume of an object is the amount of space it occupies. A block of wood placed on a table retains its shape and volume, therefore, it is an example of a solid. If a liquid is poured on that same table, there are very different results
Explanation:
Hello
Answer:
The reliable and correct answer to this question is Solid
Explanation: If something is in a solid state of matter, it has a definite shape and volume. The volume of an object is the amount of space it occupies. A block of wood placed on a table retains its shape and volume, therefore, it is an example of a solid.
2. Stronger intermolecular forces =______ boiling point
Stronger intermolecular forces = higher boiling point
The stronger the intermolecular forces, the harder the molecules are to pull/break apart, which means a higher boiling point.
how does a drupe fruit differ from a hesperidum fruit.
Answer:
hi
Explanation:
Answer:
Fleshy Fruits: All of most of the ovary wall (pericarp) is soft or fleshy at maturity. ... partitions, juicy seed vesicles, and a leathery exocarp similar to a hesperidium. ... This is a very common dry fruit found in many different plant families.
Explanation:
How many moles is 118 grams of Argon
Answer:
[tex]\boxed {\boxed {\sf About \ 2.96 \ moles \ of \ Argon}}[/tex]
Explanation:
To convert from grams to moles we must use the molar mass, which is found on the Periodic Table.
Argon: 39.9 g/molUse the molar mass as a ratio.
[tex]\frac{39.9 \ g \ Ar}{1 \ mol \ Ar}[/tex]
Multiply by the given number of grams: 118
[tex]118 \ g \ Ar *\frac{39.9 \ g \ Ar}{1 \ mol \ Ar}[/tex]
Flip the fraction so the grams of argon will cancel each other out.
[tex]118 \ g\ Ar * \frac{1 \ mol \ Ar}{39.9 \ g \ Ar}[/tex]
[tex]118 * \frac{ 1 \ mol \ Ar}{39.9 \ g \ Ar}[/tex]
[tex]\frac {118 \ mol \ Ar }{ 39.9 }[/tex]
[tex]2.95739348 \ mol \ Ar[/tex]
The original measurement of grams had 3 significant figures, so our answer must have 3 sig figs.
For the number we calculated, that is the hundredth place. The 7 in the thousandth place tells us to round the 5 to a 6.
[tex]2.96 \ mol \ Ar[/tex]
There are about 2.96 moles of Argon in 118 grams.
Someone help please!
Answer:
D
Explanation:
What volume, in liters, does 128 grams of O2 occupy at STP?
89.6 L
22.4 L
67.2 L
44.8 L
Answer: 89.7 L
Explanation:
89.6 volume, in liters, does 128 grams of O2 occupy at STP. Therefore, option A is correct.
What do you mean by volume ?A volume is simply the amount of space taken up by any three-dimensional solid. A cube, a cuboid, a cone, a cylinder, or a sphere are examples of solids. Volumes differ depending on the shape.
Every three-dimensional object requires some amount of space. The volume of this space is measured. Volume is defined as the space occupied by an object within the boundaries of three-dimensional space. It is also known as the object's capacity.
1 mole Oxygen has mass 32 grams
Mole of Oxygen in 128 g mass = 128 g / 32 g/mol
= 4.0 mol O2
At Standard temperature and pressure this has volume
= 4.0 mol × 22.4 L/mol
= 89.6 L
Thus, 89.6 volume, in liters, does 128 grams of O2 occupy at STP, option A is correct.
To learn more about the volume, follow the link;
https://brainly.com/question/1578538
#SPJ6
Which of the following is an example of an adaptation that might be useful in the grassland? HELP ME PLS
A. an insect looking like a tree branch
B. an animal having a heavy coat of fur
C. an animal having large feet so it can walk on the snow
D. an animal being the color of brown grass and dust
Answer:
D
Explanation:
In the grassland pretty warm so the heavy fur coat wouldn't help, there is no snow in the grassland so the big feet for walking on snow also wouldn't help, its the grassland where trees are more scarce so not A, but there is a lot of grass and dust so being able to blend in would help.
Answer:
D
Explanation:
AN animal this color can camouflage and it can help them so they will not be eaten by there predators
what is the formula mass of MgO (how much does one mole of it weigh)
Answer:
40.3044 g/mol
Explanation:
hope this helps
which one is ittt? help please:)
Answer:
b
Explanation:
HELP !!!!!!!!!!!!! PLEEEAAAAASSSSSSEEEE
What is the name of Br6F10 ?
Answer:
Bromine fluoride
As one object gets closer to another object , the force of gravity will increase ......
True or false
Answer:
true
Explanation:
hope that helped!!
What is the chemical formula for nickel (III) oxide, I know the answer but can someone explain how you would get it?
Answer:
the answer is d.
1. Write the symbols for each element.
2. Find the charge for each element using the Periodic Table. Write it above each element. (because there is a (III) after nickel, the charge of nickel is +3. oxygen is in group 16, which means it has a -2 charge.)
3. See if the charges are balanced (if they are you're done!)
- when you criss cross (getting Ni2O3, the charges are canceled out, so the equation is balanced.
if you still need help or if this is confusing, look up How to Write the Formula for Nickel (III) oxide by Wayne Breslyn on YT.
Answer:
D.) Ni2O3
Explanation:
edge 2021 (just needed the daily answer)
Unbend a paper clip such that
you have
a long, straight piece of metal. Bend one of the initially straight sections
back and forth several times. Does it become easier or harder to bend
the paper clip in the same spot? What happens if you keep bending the
paper clip back and forth?
uz RS nyodag
Metals have a crystalline in nature, and a consistent shift in stress causes the structure to alter, causing the metal to stiffen and fracture. This is known as metal fatige. The bending causes that to occur.
What is metal ?A metal is a substance that has a shiny look when freshly processed, polished, or shattered, and conducts electricity and heat rather effectively. Generally speaking, metals are malleable and ductile.
These characteristics are the outcome of the metallic link that exists between the metal's atoms or molecules.
The earth's crust is where most pure metals are found. They are discovered in ores, which are solid materials from which metals and minerals may be extracted. The majority of the planet's iron mass, which makes up over a third of its mass, is located in its core.
Thus, Metals have a crystalline in nature, and a consistent shift in stress causes the structure to alter.
To learn more about metal, follow the link;
https://brainly.com/question/18153051
#SPJ2
Please see the picture, I could really use some help!
Answer:
yo no se de eso preguntale a otro si
the substance that can not be further decomposed by ordinary chemical means is
A.water
B.gold
C.sugar
D.air
FB and were to bond the difference in electronegativity would be
and we would expect the bond to be
ionic covalent, poler covalent)
ASAP quick
the structure and bonding of gold?
Answer:
metallic bonding
Explanation:
since it is a metal gold forms metalllic bonding.
Answer:
metalic bonding
Explanation:
How well do you think scientists can predict where a volcano will erupt? How well do you think scientists can predict when a volcano will erupt? Explain.
Answer:
Volcanologists can predict eruptions if they have a thorough understanding of a volcano's eruptive history, if they can install the proper instrumentation on a volcano well in advance of an eruption, and if they can continuously monitor and adequately interpret data coming from that equipment.
Explanation:
GUYS QUICK HELP!
is a soda pop bottle a invention or an innovation?
Answer:
Invention
Explanation:
!Hope This Helps!
The answers are in the picture. this us the question, An increase in carbon dioxide production has led to an increase in global temperatures, which is causing glaciers to melt faster. If this trend continues, how will animals living in the polar regions be affected?
Answer:
D
Explanation:
because if there is no land for them they wont survive in only water
The increase in global temperature melts the ice in polar regions. This worsely affects the animals living there. Hence, they will migrate to other areas but this is in fact not possible for their adaptation in other areas and they may subject to extinction.
What is global warming ?Global warming is the rise of temperature of earth surface all over the world. The significant reason for global warming is green house effect. Gases like carbon dioxide, methane gas etc. are intensely absorbing temperature that is radiating back from earth.
Hence, these gases are increasing the atmospheric temperature in earth. Global warming have very serious impacts that going up to the major discussion to solve nowadays.
The melting of polar icebergs and rising of sea level definitely leads to the extinction of animals living in polar region. They cant be adopted to other regions and migrating to other areas does not save them. Hence, they will extinct from earth. Therefore, option d is correct.
Find more on global warming:
https://brainly.com/question/12908180
#SPJ6
A CANDLE WILL STAY LIT INSIDE THE SPACE SHUTTLE WHEN IT IS ON THE LAUNCH PAD, BUT NOT WHEN IT IS IN ORBIT. WHY?
Answer:
because there is no oxygen in space for it to burn
because all fire need oxygen to burn
Explanation:
2) Check all that apply.
What are the three major groups of elements?
Answer:
metals, nonmetals and metalloids
Explanation:
Which phase of matter will take the shape of its container?
Answer:
Liquid
Explanation:
All liquids take the shape of the container
A car accelerates from 20 m/s to 40 m/s in 4 seconds. What is the car’s acceleration?
Answer:
40 - 20 = 20
20/4 = 5m/s
The difference in velocity divided by the rate = acceleration.