Answer:
It does not change the identity of a substance. Sugar if dissolved in water is still sugar.
Explanation:
Which of the following would likely occur as a result of an oil spill in the ocean?
I. The levels of salt and other nutrients typically present in ocean water would greatly increase.
II. There would be no more upwelling of nutrients from cold ocean depths.
III. Humans would be less able to use fish and shellfish from the affected area as food.
IV. There would be global interruptions in the water cycle.
A. III only
B. IV only
C. I and III only
D. I, II, III, and IV
Answer:
D.
Explanation:
The Oil spill effects on environments and habitats can be catastrophic: they can kill plants and animals, disturb salinity/pH levels, pollute air/water and more. Read more about the types of oil pollution.
Statements that express occurrences as a result of oil spill in the ocean are:
C: I. The levels of salt and other nutrients typically present in ocean water would greatly increase.
III. Humans would be less able to use fish and shellfish from the affected area as food.
An oil spill can be regarded as a of release liquid petroleum hydrocarbon into the environment.This release can be on land or in the body of water especially ocean, however this spillage is very dangerous to aquatic lives which indirectly affects man.Once spillage occur, levels of salt and other nutrients will increase in the ocean and this can harm aquatic lives.especially the marine ecosystem, due to human activity, and is a form of pollution.
Therefore option C is correct.
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Anyone Free can help me with this question please ?
Answer:
68
Explanation:
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The table below shows properties of two compounds at standard pressure. Which statement classifies the two compounds? 1)Both compounds are ionic, 2)Both compounds are molecular, 3) Compound 1 is ionic, and compound 2 is molecular, 4)Compound 1 is molecular, and compound is ionic
Answer:
3) Compound 1 is ionic, and compound 2 is molecular
Explanation:
Compound-1 is an ionic compound while Compound-2 is a molecular compound. Option 3 is correct.
Ionic Compound:
They are formed when an atom donates its electron to another atom. This results in one positive and one negative ion.
Hence, it is a very strong bond. These compounds have a very high melting and boiling point. They are very good electric conductors in the aqueous solution.
For example- NaCl.
Molecular compounds:
They are compounds that are made up of discrete molecular units. For example- [tex]\bold {H_2O}[/tex]
They have very weak intermolecular bonds hence have low boiling and melting point and do not conduct electricity.
SInce Compound-1 has higher MP and BP and Compound-2 has low melting and boiling point.
Therefore, Compound-1 is an ionic compound while Compound-2 is a molecular compound.
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The density of molasses is 2.28g/mL. What volume of molasses would have a mass of 392.8g?
Answer:
V = 172.28 mL
Explanation:
density is mass divided by volume
p = density
m = mass
V = volume
p = m/v
V = m/p
V = 392.8/2.28
V = 172.28 mL
Express 4,935,000 using standard scientific notation
Answer:
4.935×10-1
Explanation:
Take away the 0
What are the coefficients that would correctly balanced reaction
Answer: As a consequence, chemical equations must be balanced, meaning that the number and kinds of atoms must be the same on both sides of the reaction arrow. The numbers placed in front of formulas to balance equations are called coefficients, and they multiply all the atoms in a formula.
Can I get Help with this question ♂️ please?
Answer:
Molar mass of the substance
Which of the following is not a natural
way water is stored in the water cycle?
A Stream
B. Pond
C. Iceberg
D. Cup
Answer:
cup...................
Electromagnetic waves travel because of ____
because they need a medium to travel they can travel everywhere if they got the medium
Why do different places on Earth have different climates?
Answer:
cause of the sun rotation
Explanation:
Answer:
The world is tilting on an edge that creates seasons.
Explanation:
And that's why different parts of the have different climates.
please complete work
Calculate the molar mass of ammonium salfate:(NH4)2SO4
Answer:
132.14 g/mol
Explanation:
what element has greatest atomic radius from group 3?
Answer:
i think iron
Explanation:
i not sure with my ans
Shivani measures out 6.0 moles of epsom salt (MgSO) to put her bath. How many grams MgSO4 went in the bath?
Answer: 720 g
Explanation:
To solve this we must be knowing each and every concept related to mole. Therefore, shivani measures out 6.0 moles of epsom salt (MgSO[tex]_4[/tex]) to put her bath. 1,566g MgSO[tex]_4[/tex] went in the bath.
What is mole?A mole is merely a measuring unit. In reality, it is one of its International System of Units' seven foundation units. When current units are insufficient, new units are created.
Chemical reactions frequently occur at levels where employing grams would be inappropriate, but using absolute quantities of atoms/molecules/ions would also be misleading.
For all practical reasons, one mole of a substance in grams is nearly equal to 1 molecule for the compound per daltons.
Mathematically,
number of mole =given mass ÷ molar mass
number of mole=6.0 moles
molar mass of epsom= 261.47g/mol
substituting all the given values in the above equation, we get
6.0 moles =mass of epsom ÷ 261.47g/mol
mass of epsom =1,566g
Therefore, 1,566g MgSO[tex]_4[/tex] went in the bath.
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1. What are the two effects of the continental plate/continental plate convergent boundary?
2. Where can you find an example of this type of divergent boundary? Which country, continent or ocean?
Answer
oh you again?
Explanation:
When recommending solutions to decrease human impact, which location were you able to make the greatest positive impact? Please explain your selection by using data from the simulation.
What recommendations would you give to your local community to help to decrease the local effects of human impact on the environment? List 2 recommendations and how they will positively impact your community.
What recommendations would you give to the global governments to help decrease the global effects of human impact on the environment? List 2 recommendations and how they will positively impact our planet.
When recommending solutions to decrease human impact, which location were you able to make the greatest positive impact? Please explain your selection by using data from the simulation.
New york, 893 - 853 = 40 which is the highest quotient.
What recommendations would you give to your local community to help to decrease the local effects of human impact on the environment? List 2 recommendations and how they will positively impact your community.
Installing solar panels and replanting 2 trees for every tree that’s been cut down, this will help the atmosphere and deforestation.
What recommendations would you give to the global governments to help decrease the global effects of human impact on the environment? List 2 recommendations and how they will positively impact our planet.
Constructing using only recycled materials decreases water pollution to 823 ppm and Creating more protected areas decreases air pollution to 368 ppm this will help the environment and oxygen.
Answer:
........
Explanation:
Anyone Can help me this question ♂️ please ?
Answer:
54.66 liters
Explanation:
First of all, remember this. 1 mole equals 22.4 liters.
Second of all, to show your work use dimensional analysis.
Write 2.44 moles and then put moles on the bottom and liters on top.
2.44 moles of O * 22.4 liters / 1 mol of O
Moles will cancel out.
2.44 x 22.4 = 54.656
Usually I would have used sig figs. But the question said to round your answer to two digits after the decimal point.
54.656 rounds to the hundreths place.
So 54.656 = 54.66
All in all, the final answer is 54.66 liters(don't forget the units).
Hope it helped!
A patient provides a urine sample. The density of the patient's urine is 1.0182 g/mL.
What is the specific gravity of the urine?
Answer:
Hey
Explanation:
The normal range for urine specific gravity is 1.005 to 1.030.
which soil would be the best for growing plants?
Honestly, its based on your preference but the best recommended one would be loam. I use loam too, and it is really good for growing the plants.
:)
Which choice has prokaryotic cells?
human blood
onion root
cow's liver
E. coli
How does the structure of gills in a fish enable it to live in a watery environment?
A. The gills allow the fish to take in carbon dioxide from the water.
B. The lungs of the fish are made up of tiny air sacs.
C. The gills allow the fish to take in oxygen from the water.
D. The villi absorb oxygen into the bloodstream.
Answer:
C. The gills allow the fish to take in oxygen from the water.
PLZ HELP BEING TIMED!!!!!PLZ ANSWER!!!!
Answer:
1st one
Explanation:
Which of the following has the strongest hydrogen bonds?
Group of answer choices
C2H6
HF
CH4
H2Se
Answer:
first and the last one hope this helps
Explanation:
Many organisms on Earth exhibit similar ____________.
Question 1 options:
time
single-celled
characteristics
nonliving
Answer:
characteristics
Explanation:
i promise becasue i am a teacher so i hope you like it
Sodium chlorite decomposes into salt and oxygen gas. What is the correct balanced decomposition reaction.
NaClO3 -> NaCl + O2
Answer:
i think it would be c
Explanation:
sorry if it is wrong
Answer:
2NaClO₃ -> 2NaCl + 3O₂
Explanation:
The number of atoms in the reactants has to equal the number of atoms in the products.
Hope that helps.
HELPPP PLEASE
Calculate the mass of beryllium (Be) needed to completely react with 18.9 g nitrogen gas (N2) to produce Bez N2, which is the only product of the reaction.
A. 6.19
B. 12.29
C. 18.29
D. 36.69
Answer:
Mass = 18.29 g
Explanation:
Given data:
Mass of beryllium needed = ?
Mass of nitrogen = 18.9 g
Solution:
Chemical equation:
3Be + N₂ → Be₃N₂
Number of moles of nitrogen:
Number of moles = mass/molar mass
Molar mass of nitrogen = 28 g/mol
Number of moles = 18.9 g/ 28 g/mol
Number of moles = 0.675 mol
Now we will compare the moles of nitrogen and Be.
N₂ : Be
1 : 3
0.675 : 3/1×0.675 = 2.03 mol
Mass of Be:
Mass = number of moles × molar mass
Mass = 2.03 mol × 9.01 g/mol
Mass = 18.29 g
Twelve grams of gas occupies 14.5 liters at a pressure of 52.0cm Hg. What is the volume when the pressure has increased to 85.0cm Hg?
Answer:
8.87 L.
Explanation:
From the question given above, the following data were obtained:
Mass (m) of gas = 12 g
Initial volume (V₁) = 14.5 L
Initial pressure (P₁) = 52 cmHg
Final pressure (P₂) = 85 cmHg
Final volume (V₂) =?
The final volume of the gas can be obtained by using the Boyle's Las equation as illustrated below:
P₁V₁ = P₂V₂
52 × 14.5 = 85 × V₂
754 = 85 × V₂
Divide both side by 85
V₂ = 754 / 85
V₂ = 8.87 L
Thus the volume of the gas will be 8.87 L
Kp/Kc for reaction for the equilibrium, A(g) ⇌ C(g)+B(g), is _______.
(Kc is the equilibrium constant in terms of concentrations, Kp is the equilibrium constant in terms of pressures, R is the gas constant, T is the temperature)
Select one:
(RT)2
(RT)-1
(RT)-2
(RT)-1.5
RT
RT
by using relation between Kp and Kc we get the above answer
Which of the below elements are part of a group? Feel free to use the periodic table.
A. H, He, O, C
B. Be, Mg, Ca, Sr
C. Li, Be, C, O
D. H, Li, Na, Mg
Answer:
B. Be, Mg, Ca, Sr
Explanation:
Be, Mg, Ca, Sr are parts of the alkaline Earth metal family/group. So they are the second most reactive elements following behind alkali metals. Furthermore, Be, Mg, Ca, Sr all have 2 valence electrons that lose them to form cations. They have low melting points, low boiling points, can conduct electricity, have high malleability and ductility.
Hope it helped!
What is the percent composition by mass of sulfur in Na2SO4
Answer:
22.6%
Explanation:
I just answered and got it right
help asap pleaseeeeeee
