Answer:
Heavy water is a compound that is made up of oxygen and deuterium, a heavier isotope of hydrogen which is denoted by ‘ 2 H’ or ‘D’. Heavy water is also called deuterium oxide and is denoted by the chemical formula D 2 O.
Density: 1.107 g/mL
Dipole moment: 1.87 D
Heavy Water (Deuterium Oxide): D2O
Molecular Mass: 20.02 grams/mole
Explanation:
2. What do you think may have happened to the "bad" chocolate bar? Do you think
it was made poorly? Or do you think something happened to the chocolate on the
way to the customer? Also, is there a way Charlotte can avoid this issue in the future?
Explain.
Answer:
2
Explanation:
If I have 2.4g of magnesium, how many g of oxygen(O2 ) will I need to react completely with the magnesium? 2Mg +O2 → MgO
Explanation:
just trying....hope that helps
1.6 grams of oxygen will react with 2.4 grams of magnesium.
Explanation:
Given:
2.4 grams of magnesium.
The reaction between magnesium and oxygen:
[tex]2Mg+O_2\rightarrow 2MgO[/tex]
To find:
The mass of oxygen required to react with 2.4 grams of magnesium.
Solution:
The mass of magnesium = 2.4 g
Moles of magnesium =[tex]\frac{2.4 g}{24.305 g/mol}=0.0987 mol[/tex]
[tex]2Mg+O_2\rightarrow 2MgO[/tex]
According to the reaction, 2 moles of magnesium reacts with 1 mole of oxygen, then 0.0987 moles of magnesium will react with:
[tex]=\frac{1}{2}\times 0.0987 mol=0.04935\text{mol }O_2[/tex]
Moles of oxygen required = 0.04935 mol
The mass of 0.04935 moles of oxygen :
[tex]=0.04935\times 31.999 g/mol=1.579 g\approx 1.6 g[/tex]
1.6 grams of oxygen will react with 2.4 grams of magnesium.
Learn more about the unitary method and moles here:
brainly.com/question/2499283?referrer=searchResults
brainly.com/question/20703532
How many elements are in “H2”
A substance was analysed and found to contain 26.57 % potassium, 35.36% chromium, and
38.07 % oxygen by mass.
What is the empirical formula of the substance?
Select one:
question
O a. K2Cr205
O b. K2Cr207
O c. KCr2O7
O d. K_Cro
Answer: K2Cr2O7
Explanation: Pretend we have 100g of the compound. use the percentage to calculate how many grams of each element are in the 100g.
K: 26.57g
Cr: 35.36 g
O: 38.07 g
Now divide by the molar mass of each element to find the moles of each:
K: 0.7 moles
Cr: 0.7 moles
O: 2.4 moles
That gives us 3.8 moles total. But what's important is to find a factor that would bring all of these mole values to a whole number, since they must be in whole number proportions. The closest I got was around 3.
That would lead to the following empirical formula: K2Cr2O7.
What process must occur to cause sediment to stick together when forming sedimentary rock?
cooling
cementation
Compaction
weathering
Answer:
Compaction and Cementation
Dissolved minerals in the ground water precipitate (crystallize) from water in the pore spaces forming mineral crusts on the sedimentary grains, gradually cementing the sediments, thus forming a rock
PLS HELP ME
The moon is 2.39 • 10^5 miles from the earth. The
average man is 6 feet tall. How many men would have
to stand on top of one another to reach from the earth
to the moon? (there are 5,280 feet in a mile. How many
miles is 6 feet?)
Number of men required to stand on top of each other to reach moon from earth are :
[tex] \boxed{ \boxed{ \: \: \: \: \: \: \: 210320000 \: \: \: \: \: \: \: }}[/tex]
What is the function of a cell in relation with the human body?
Answer:
Explanation:
They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body's hereditary material and can make copies of themselves. Cells have many parts, each with a different function.
Back page anwsers of adobe sisters recap sheet
Answer:
I'm sorry, you didn't post the pictures.
Can someone please help me
(1) One night while looking through his telescope,
Reginald saw three planets in the sky. X, Y. and
Z. X was smaller than Y, and Y was smaller than Z.
Was Z larger or smaller than X?
Answer:
Z was smaller than X
Explanation:
if X<Y and Y<Z
therefore X<Z
what is the mass 2 moles of urea
Answer:
60.06 g/mol
The solute is urea, CO(NH2)2. Molar mass of urea: (12.01) + 16.00 + 2(14.01 + 2(1.008)) = 60.06 g/mol.
Explanation:
please mark me brainliestAnswer:
60.06 g/mol
Explanation:
the solution area,CO(NH2)2.molar mass urea:
(12.01)+16.00+2(14.01+2(1.008))=60.06g/mol
advantages and disadvantages of chemical
Answer:
Advantages :they are used for seeing chemical reactions .
they are used for doing chemical experiment .
they are used for making affective medicines .
Disadvantages :they harms to our environment.
they can make side effects in our body by affective medicines made by chemicals.
while doing different unknown experiments they make explosions which can also harm to us.
You decide to clean the bathroom. You notice that the shower is covered in a strange green slime. You decide to try to get rid of this slime by adding lemonade juice. You spray half of the shower with lemonade juice and spray the other half of the shower with water. After 3 days of spraying equal amounts 3 times a day, there is no change in the appearance of the green slime on either side of the shower. How many trials are being performed in this example?
Answer:
3
Explanation:
an object is traveleing at a speed of 7.500.0 cm/sec. what is this value in km/day
Answer:
1 cm » 0.00001 km
1 sec » 1/86400 days
[tex]7500 {cm \: sec}^{ - 1} = \frac{75 00\: cm}{1 \: sec} \\ \\ = \frac{7500 \times 0.00001 \: km}{(1 \times \frac{1}{86400}) \: day } \\ \\ = { \boxed{ \boxed{6480 \: km \: {day}^{ - 1} }}}[/tex]
Please help me!! Really important
Answer:
Lanthanum and Lutetium
I hope this will help you
Balance and classify the following equations as synthesis, decomposition, single replacement, double replacement, or combustion: a. C4H10 + 02 -> CO2 + H20 Reaction Type: b. ___ HNO3 + Mg(OH)2 -> Mg(NO3)2 + H20 Reaction Tyne.
Does a radio have energy if it’s turned off
Answer:
no
Explanation:
Which one of the give elements the least reactive?
A. Fluorine
B. Chlorine
C. Iodine
D. Bromine
Answer:
c
Explanation:
iodine is the answer.please mark me as brianlist.
Answer:
Fluorine
Explanation:
It is the most reactive
Stars with a greater overall mass are and , and they consume their nuclear fuel .
Answer:
they will expand
Explanation:
as they bring out they become red giants then eventually white dwarfs or the scarier options a black hole
A ___________
is a process that occurs when
one or more substances are changed into one or more new
substances. For example, when zinc and sulfur are mixed
together with the addition of energy in the form of heat, zinc
sulfide (ZnS) is produced.
Answer:
Reaction??
Explanation:
please help me with my question
HELLO MAY SOMEONE PLZ HELP ME ON THIS!!!;$7&:
Answer:
Variable data is defined as information and figures used to build control charts. Variable data can be used to create average (X-bar) charts, range charts, and sample standard deviation charts or "S-charts."
10. Group number tells us the number of
an atom has.Groups and families have__ __ properties
Answer:
similar chemical properties?
Explanation:
Identify one instance each of kinetic energy and potential energy
Answer:
Few Examples of Kinetic Energy
The following are typical examples of kinetic energy:
A wrecking ball used to demolish a building through utilization of the kinetic energy it possesses in motion.
Conversion of liquid water to steam, by virtue of the fast movement of the molecules of the liquid upon agitation
A golf ball after being struck off the tee
An asteroid falling towards Earth at incredible speed
A downhill skier traveling down a hill
The flow of a river
An airplane in motion (possesses a tremendous amount of kinetic energy. This is because the mass of the airplane and the velocity at which it moves are enormous)
Explanation:
Answer:
"The battery in the car has potential energy in the form of chemical energy. As the car is turned on and moves, this potential energy becomes kinetic energy."
Explanation:
Remember to change it up a bit.
A 2.00 mL sample of a substance A has a density of 18.4 g/mL and a 5.00 mL sample of
substance B has a density of 35.5 g/mL. Do you have an equal mass of substances A and
B? Explain your answer.
Answer: No, the samples are not of equal masses.
Explanation: Mass is volume X density
A: (2ml)*(18.4g/ml) = 36.8 g
B: (5ml(*(35.5g/ml) = 177.5 g
After using soap to wash dishes by hand, it is sometimes difficult to keep your hands from remaining slick. Explain why rinsing your hands in lemon juice would make them less slick.
Answer:
Explanation: Rinsing hands in lemon juice would make them less slick because when a acid (soap) and a alkaline (lemon juice) reacts it becomes neutral
At the end of an experiment, a scientist ___ or ____ his/her hypothesis.
Supports, proves
Proves, rejects
Supports, rejects
Disproves, proves
1. Obtain Information Search for and watch an
online video clip that shows the lotus effect.
What do
you
think causes this phenomenon?
Answer:
up with you and the other day and I don't think I can get a chance
Which of the following is NOT a correct conversion factor?
1 cm = 0.01 m
1 km = 1000 m
1 cm = 100 m
1 dm = 0.1 m
Answer: 1 cm = 100m
Explanation: Centi- is the prefix used to designate 0.01 (one hundredth) of something. 1 cm means 0.01 m.
1 cm = 100 m is NOT a correct conversion factor. Option C is correct.
what are conversion factors?The conversion factors are the factors that re-use to convert some values from unit to unit of another value like from centimeter to meter from meter to kilometer from milligram to gram.
In one centimeter it is the suffix used to denote it is the one by hundred value of the on meter or which is equal t one meter so, 1cm = 0.01 meters as it is the 1/100 part f the one-meter distance.
Therefore, Option C is correct. 1 cm = 100 m is NOT a correct conversion factor.
Learn more about conversion factors, here:
https://brainly.com/question/28366871
#SPJ2
please help me with my question
Answer:
D
Explanation:
17^0 has extra electon
Chemical bond meant by.... what?
Answer:
Chemical bonding, any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world.
Answer:
A chemical bond is the physical phenomenon of chemical substances being held together by attraction of atoms to each other through sharing, as well as exchanging, of electrons -or electrostatic forces.
