Answer:
If the Oort cloud exists which it most likely does it would be C
Explanation:
Cu(OH)₂ +H₃PO₄ = Cu₃(PO₄)₂+H₂O
how do i balance this equation
balanced equation =
3Cu(OH)2 + 2H3PO4 → Cu3(PO4)2 + 6H2O
A penny is 0.061 inches thick. What is the value of the 6 in the thickness of a penny? Mathematics not chemistry
Answer:
because of the location of the 6 the answer is 6 cent
Answer:
Hundredths
Explanation:
$6 times 1/$100. The 0 is tenths, the 6 is hundredths and the 1 is thousandths.
Sounds with great amplitude are ____________
Answer: LOUDER
Explanation:
. A larger amplitude means a louder sound, and a smaller amplitude means a softer sound.
As the ionic compound increases in
complexity, the melting point
A. increases
B. decreases
C. stays the same
Given what we know, we can confirm that as an ionic compound grows more complex, its melting point will increase.
What is an Ionic compound?An ionic compound is one in which atoms of elements share electrons between them to form compounds.These shared electrons generate powerful electrostatic forces that we refer to as ionic bonds. Electrostatic forces cause an increase in the melting point of a compound. As a compound grows more complex and adds more elements to its composition, it will gain new electrostatic forces, and thus increase its melting point.Therefore, as an ionic compound grows more complex, its melting point will increase due to the increasing number of strong electrostatic forces present in the compound.
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Answer: it INCREASES
if you don’t wanna read that long answer the other person put
Explanation:
4. Initially, 1 mol of oxygen (assumed to be an ideal gas) has temperature 310 K and volume 12 L. We will allow it to expand to volume 19 L. (a) What would be the final temperature if the gas expands adiabatically
Answer:
490.83 oK
Explanation:
First of all, we better agree on the meaning of the word adiabatically. It means without the loss or gain of heat. So nothing is given up to or taken from the environment.
This also assumes that no change has occurred in the pressure.
T1 = 310 oK
T2 = ?
V1 = 12 L
V2 = 19 L
T1/V1 = T2/V2
310 / 12 = x/19 Multiply both sides by 19
310*19 / 12 = T2 Multiply 310 * 19 on the left.
5890 / 12 = T2 Divide by 12
490.83 = T2
what is the relationship between plants soil and nutrients?
Answer:
Soil helps anchor plants and provides them essential elements of water and nutrients. Plants prevent soil erosion and provide organic matter.
Explanation:
give free 18 points again just answer yes or no
is einstein a scientist? yes or no
Answer:
yes
Explanation:
Answer:
Yes
Explanation:
Albert Einstein is often cited as one of the most influential scientists of the 20th century. His work continues to help astronomers study everything from gravitational waves to Mercury's orbit
wsphorus-SL 3. In the isotope B-11, what does the 11 represent?
Answer:
Here boron-11 means the name of the element is boron and the mass number is 11
Explanation:
How do you break down an element?
Answer:
elements cannot be break downA force is a push or a pull under the right circumstances anything can exert a force push a notebook or some other object so that it slides across a table or desktop what force causes the notebook to start moving what force causes the notebook to stop moving?
Answer:
the force that you applied caused the notebook to move.the force applied on the notebook by the table causes it to stop moving. this is because after sometime the book uses up the force and later the force you applied is less than that of the force by the table.
28) what is the number of oxygen atoms in the formula unit of Ca3(PO4)2?
Answer:
4.816x10²⁴atoms
Explanation:
the number of moles of oxygen is 8
let x be number of oxygen atoms
recall that 1 mole=6.02x10^23 atoms
therefore, 8 moles =x
cross multiply
8 x 6.02 x 10^23 = x
x = 4.816 x 10²⁴atoms
How do i find a ionic formula?
for example Ca2+ & S2-
Example #1 write the chemical formula for Calcium Oxide
Step 1
-Find the Atomic symbol of the metal and non-metal on the periodic table
CaO
Step 2
Find the charges for Calcium and Oxygen
which are Ca 2+ and O 2-
Step 3
Balance out the charges
They are already balanced out
Here´s the chemical formula for Calcium Oxide
CaO
Example 2 write the chemical formula for Aluminum Oxide
Step 1
-Find the Atomic symbol of the metal and non-metal on the periodic table
A
l
O
Step 2
Find the charges for Aluminum and Oxygen
Which are Al 3+ and O 2-
Step 3
Balance out the charges
You need 2 Aluminum and 3 Oxygen to balance the charges
Al 3+ O 2-
Al 3+ O 2-
= 6 + O 2-
= 6-
Step 4
If you need more then one element to balance out the charges you identify that by using subscripts
Heres your chemical formula for Aluminum Oxide
[tex]Al_{2} O_{3}[/tex]
According to the unbalanced equation above if 8.542 moles of oxygen gas reacts with an excess amount of hydrogen gas, how many grams of water is produced
Answer: 153.8865g?
Explanation:
Match each term in the first column with an example in the second column. On a sheet of paper, write the letter of the answer.
1. physical property
2. chemical property
3. solid.
4. liquid
5. physical change
6. chemical change
———————————————
A. ability to burn
B. rust appears on a nail
C. a puddle freezes
D. substance that has a definite shape and volume
E. temperature or destiny
F. substance that has a definite volume, but no definite shape
Answer:
4 = f
3 = d
5 = c
6 = b
2 = a
1 = e
Explanation:
now imagine that you have analyzed an additional vntr. from the blot below, what is the expected frequency of occurrence?
what is meant by the term symbol of an element?
An element symbol is a one- or two-letter abbreviation for a chemical element name. When a symbol consists of two letters, the first letter is always capitalized, while the second letter is lowercase. Element symbols also can refer to alchemy symbols for the elements or to the symbols used to describe isotopes.
Study hard!
The characteristics “fingerprints” of light produced when a substance is given energy are called…
A. Groundlings
B. Quantums
C. Spectrums
D. Amplitudes
A spectrum is a pattern is unique to a substance and can be used identify it.
According to Max Plank, energy occurs in packets called quanta. Hence, energy is not continuous but takes on discrete values which are integer multiples of a fundamental amount.
Again, when a substance is given light energy, a characteristic fingerprint is obtained. This pattern is unique to the substance that has it. These characteristics “fingerprints” are called spectrums.
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AHHHH HELP IM TIMEd!!!!! WILL BRAINLIEST
Answer:
211.0
Explanation:
∆G(free energy) = ∆H(enthalpy) - T∆S(entropy)
∆H = 215KJ/mol
T = 90°C = 273 + 90
= 363K
∆S = 11J/mol/K or 11 × 10^-3kJ/mol/K
∆G = 215- 363(11 × 10^-3)
= 215 - 3.993
= 211.007
To the nearest tenth 211.0
Please select the word from the list that best fits the definition
a new energy source found in the ocean that is currently very costly to obtain
nonrenewable resources
renewable resources
methane hydrates
plankton
petroleum
nonliving resources
Answer:renewable resources
Explanation:
Prokaryotic and Eukaryotic Cells Booklet
Answer:
Power Plant = Mitochondria (Mitochondria is the powerhouse of the cell)
City Limits = Cell Membrane (Outer layer of a cell)
City Hall = Nucleus (The nucleus is the control center in a cell)
City Food Processing Plant (Chloroplast process the cells food)
City Plans = Chromosomes (They contain the genetic information about the cell)
Community = Cytoplasm (Mainly process of elimination)
Explanation:
Explanations are in parenthesis
Which of the following is not an ingredient for photosynthesis?
A. Oxygen
B. Carbon dioxide
C. Light energy
D. Vinegar
Answer:
d
Explanation:
......................
Answer:
D. vinegar
Explanation:
Hope this helps you!!
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8) (When allyl alcohol dissolves in water, the particles of allyl alcohol
a. remain intact.
b. react with water.
C. react with water forming solvated atoms.
d. react with water forming solvated ions.
9) The hydrogen bonding interaction between particles of allyl alcohol and water
occurs between the hydrogen atom of water
a. and the oxygen atom of allyl alcohol.
b. and the hydrogen atom of allyl alcohol that is covalently bonded to the oxygen atom.
c. and the hydrogen atom of allyl alcohol that is covalently bonded to the carbon atom.
d. Actually, hydrogen bonding is NOT the intermolecular force between allyl alcohol and
water
10) The hydrogen bonding interaction between particles of allyl alcohol and water
occurs between the oxygen atom of water
a. and the oxygen atom of allyl alcohol.
b. and the hydrogen atom of allyl alcohol that is covalently bonded to the oxygen atom.
C. and the hydrogen atom of allyl alcohol that is covalently bonded to the carbon atom.
d. Actually, hydrogen bonding is NOT the intermolecular force between allyl alcohol and
water
Hydrogen bonding interaction occurs between the oxygen atom of water and the hydrogen atom of allyl alcohol that is covalently bonded to the oxygen atom.
We must recall that allyl alcohol is a molecular substance. Molecular substances do not dissociate into ions in water. As such particles of allyl alcohol remain intact when dissolved in water.
Hydrogen bonding occurs when hydrogen is bonded to an electronegative atom such as oxygen. In allyl alcohol, hydrogen bonding interaction occurs between the hydrogen atom of water and the oxygen atom of allyl alcohol.
Also, hydrogen bonding interaction occurs between the oxygen atom of water and the hydrogen atom of allyl alcohol that is covalently bonded to the oxygen atom.
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Which statement is correct about charges?
A.Opposite charges repel
B.Similar charges attract
C.Electrons are positively charged
D.Similar charges repel
Answer:
A.Opposite charges repel[tex] \: \: \: \: [/tex]
D.Similar charges repelcorrect me if I'm wrong
hope it helpshow many kernels are in a bag of microwave popcorn?
Select the correct answer.
Tropical forests contain dense trees, which allow less sunlight to penetrate. Emergent trees are trees that grow to a height of more than 45 to 55 meters, above the usual height of trees in tropical forests. Which system provides the best possible explanation for why these trees grow to those heights?
A.
shunted growth pattern
B.
homeostasis
C.
due to less exposure to sunlight
D.
phototropism
What happens when your face is near the spoon. Please specify.
Answer:
RBCs are disc-shaped with a flatter, concave center. This biconcave shape allows the cells to flow smoothly through the narrowest blood vessels. ... Many RBCs are wider than capillaries, but their shape provides the needed flexibility to squeeze through
Ca+P criss cross method
Answer:
[tex]t \o \: know \: the \: answer \: [/tex]
[tex]refer \: to \: the \: attatchment[/tex]
Explanation:
Hope this helps !!Write the chemical formulas and names for the following ionic compounds. Tin4+ and chlorine
Answer:
SnCl4.
Explanation:
Please help need to turn in
Answer:
2. d
3. i
4. e
5. j
6. g
7. a
8. f
9. b
Explanation:
do a few searches when you have time to deepen understanding!
5.27x10^45 molecules of h20 is how many moles
Answer:
6.02 × 10^23 molecules = 1 mole
5.27 × 10^45 molecules = x
x = 5.27 × 10^45/ 6.02 × 10^23 × 1
= 8.754 × 10^21 mol
I don't know if it's correct but based on the question that was the only way I saw how to work it out
