Answer:
The correct answer is 2.33g of [tex]H_{2}O[/tex], A
Explanation:
We can use basic stoich to get this question.
To start, lets convert our grams to moles in order to use our equation. 5.38g of [tex]O_{2} = (\frac{5.38}{2*15.999}) moles = 0.168136[/tex] moles.
We then can use our molar ratio of 13:10. Simply divide by our molar ratio in order to go from moles of [tex]O_{2}[/tex] to moles of [tex]H_{2}O[/tex]. This gets us 0.129335 moles of [tex]H_{2}O[/tex].
Now lets convert to grams of [tex]H_{2}O[/tex] by multiplying by the molar mass of [tex]H_{2}O[/tex]. [tex].129335*(1.008*2+15.999) = 2.32997g[/tex] of [tex]H_{2}O[/tex]
In a metallic bond electrons are _______________. A. transferred C. shared B. delocalized D. lost
Answer:
in a metallic bond electrons are delocalized
can someone help me i need it before 10:10
Answer:
B 6NO A 5N2 C 6H2O D 4Nhd
Explanation:
Which is a higher concentration, 10-9 M or 10-8 M? Explain.
Answer:
10-9 Millimeters/liters
Explanation:
Because 10-9 M Is more than 10-8 M
I hope this is correct
A scientist wants to investigate the effect of concentration of nutrient agar to the growth of bacteria. He created 3 set ups: A) 30 g nutrient agar powder in 1 L H2O B) 40 g nutrient agar power in 1L H2O C) 50 g nutrient agar powder in 1 L H2O
1) Based from the given scenario, CREATE a testable hypothesis using IF-THEN- BECAUSE statements.
2) Using your hypothesis, IDENTIFY the dependent and the independent variables.
please help me with n5 ty
and don’t waste my time if you don’t know the answer please
Thanks:)
What procedures can be performed on trials 2 and 3 so that the rate of dissolving is the same as trial 1?
Answer:
increase the temperature
Explanation:
if you increase the temperature, the dissolving rate time will decrease.
The procedures that can be performed on trials 2 and 3 so that the rate of dissolving is the same as trial 1 is by increasing the temperature. Therefore, the correct option is option D.
What is rate of dissolution?A solute dissolves together into solvent during the process of dissolution, creating a solution. We are aware that the collisions between the molecules of the solvent and the particles inside the solid crystal are what cause a solid to dissolve in water.
The pace of dissolution will rise if anything is done to make such collisions happen more frequently or with more energy. Consider attempting to dissolve little sugar in a cup of tea. A cube of sugar would dissolve more slowly than a packet of powdered sugar. Stirring or stirring the solution would speed up the rate of dissolution. The procedures that can be performed on trials 2 and 3 so that the rate of dissolving is the same as trial 1 is by increasing the temperature.
Therefore, the correct option is option D.
To know more about rate of dissolution, here:
https://brainly.com/question/2459213
#SPJ2
Which does not show earths past environment?
Please hurry I need this :((
Please help with chemistry
Answer:
Proton
Explanation:
It has a positive charge
Answer:
electron
Explanation:
How far is Louisville from the nearest oil field?
Answer:
anyywhere between 20-23 miles
Explanation:
it depends what type of oil field u mean
15,499 km is Louisville from the nearest oil field. Therefore, option A is correct.
What do you mean by an oil field ?An oil field is defined as a piece of land beneath which fossil fuels can be extracted for economic value. The world's oil is concentrated in oil fields found in the Middle East, along with other large deposits discovered beneath the ocean's surface.
Oil wells are classified into three different categories. Those that exclusively formed oil, those that exclusively formed natural gas and those that formed both oil and natural gas.
Petroleum supplies transportation fuel, is a part of many chemicals and medicines, and is used to create crucial items such as heart valves, contact lenses, and bandages. Oil reserves attract outside investment and are important for improving countries' overall economy.
Thus, 15,499 km is Louisville from the nearest oil field, option A is correct.
To learn more about an oil field, follow the link;
https://brainly.com/question/24147938
#SPJ6
Your question is incomplete, most probably your question was
How far is Louisville from the nearest oil field?
A.15,499 km
B.15,499 m
C.14,567 km
D.14,567 m
An object accelerates 5.0 m/s2 when a force of 12.0 newtons applied to it.What is the mass of the object?
Please help, I haven’t seen this question anywhere !
Also this is from my Science Class
Answer:
2.4kg
Explanation:
Newton's 2nd law tells us that force is equal to the mass of an object multiplied by its acceleration, or F = ma. We can solve this equation for mass by rearranging algebraically:
m = F/a
So:
m = (12.0N)/(5.0m/s2) = 2.4kg
Which characteristics of flower petals help an angiosperm reproduce? (Select all that apply.)
Answer:
attractive smell and bright colours
The melting point of a substance is the same as its _____ point.
evaporation
freezing
boiling
sublimation
Which statement BEST describes what happens during solvation?
Answer:
A
Explanation:
The statement best describes solvation " KCl is surrounded by the polar water molecule to form an electrolyte solution which can conduct electricity."
What is solvation?The act of attracting and associating particles of a solvent mostly with molecules as well as ions of a solute would be known as solvation.
What is electrolyte?A material that contains ions and has been electrically conducting due to the mobility of the ions but still doesn't conduct electrons was called an electrolyte.
Whenever the solvent would be in the water, the process is referred to as hydration. The process of solvation shows the combination of solvent and solute molecules. A solute molecule is usually surrounded with solvent molecules that are organized in a special manner during solvation.
Therefore, the correct answer will be an option (A)
To know more about solvation and electrolyte
https://brainly.com/question/14356923
#SPJ3
how to find molar mass
Answer:
Multiply the element's atomic mass by the number of atoms of that element in the compound. This will give you the relative amount that each element contributes to the compound. For hydrogen chloride, HCl, the molar mass of each element is 1.007 grams per mole for hydrogen and 35.453 grams per mole for chlorine.
hi can you balance the equation Fe + O2 = Fe2O3
Answer:
4Fe + 3O2→ 2Fe2O3
Explanation:
Fe + O2 → Fe2O3 is the unbalanced form of chemical reaction.
Balancing the simple molecules first, in this case the O2
Fe + 3O2→ Fe2O3 there are now 6 O atoms on the left, there must also be 6 O atoms on the right.
Fe + 3O2 → 2Fe2O3
Balance the rest of the equation.
4Fe + 3O2→ 2Fe2O3
An object with a mass of 2.0 kg had a force of 4.9 newtons applied to it.What is the resulting acceleration of the object?
This is from my Science Class !And I haven’t seen this question anywhere !
Answer:
2.45 m/s2
Explanation:
Newton's 2nd law tells us that force is equal to the mass of an object multiplied by its acceleration, or F = ma. We can solve this equation for acceleration by rearranging algebraically:
a = F/m
So:
a = (4.9N)/(2.0kg) = 2.45 m/s2
Which area is MOST likely to support a marsh ecosystem? a sunny, open area with lots of sand dunes a shallow, sheltered area near an estuary a rocky, coastal area with very high tides deep ocean water miles from a river's mouth
Answer:
coastal area with very high tides deep ocean water miles from a river's mouth
Explanation:
Marshes are a type of wetland ecosystem where water covers the ground for long periods of time. Marshes are dominated by herbaceous plants, such as grasses, reeds, and sedges(National Geographic Society).
Animals found in a marsh include; frogs, toads, turtles, snakes, mammals, birds and insects. A marsh is a wetland that is dominated by herbaceous rather than woody plant species(Wikipedia). It is characterized by very high tides deep ocean water miles from a river's mouth.
Answer:
a shallow, sheltered area near an estuary
Explanation:
What does water offer that attracts human settlement?
Answer:
Water is a human necessity. Therefore, it is one of the first things a human settlement would need to have. A community cannot thrive without a water source.
Answer:
Water is a basic need that is more than a necessity, humans can't survive without water for more than a period of three days, And thus having water as available, creates a tendency among humans as humans like to get everything at ease so they tend to settle near the water bodies if possible.
someone help ,, I'll give brainliest lolll .
Answer:
#2
Explanation:
Corrosion is a natural process that converts a refined metal into a more chemically stable form . It is the gradual destruction of materials by chemical
A halloon has a volume of 456 mL at a pressure of 1.0 atm. It is taken under water in
a submarine t a depth where the air pressure in the submarine is 3.3 atm. What is the
volume of the balloon? assume con- stant temperature.
According to Boyle's law, temperature being constant the volume of the balloon at pressure 3.3 atmospheres is 138.18 ml.
What is Boyle's law?Boyle's law is an experimental gas law which describes how the pressure of the gas decreases as the volume increases. It's statement can be stated as, the absolute pressure which is exerted by a given mass of an ideal gas is inversely proportional to its volume provided temperature and amount of gas remains unchanged.
Mathematically, it can be stated as,
P∝1/V or PV=K. The equation states that the product of of pressure and volume is constant for a given mass of gas and the equation holds true as long as temperature is maintained constant.
According to the equation the unknown pressure and volume of any one gas can be determined if two gases are to be considered.That is,
P₁V₁=P₂V₂
Substitution in above equation gives, V₂=1×456/3.3=138.18 ml.
Thus, the volume of balloon is 138.18 ml.
Learn more about Boyle's law,here:
https://brainly.com/question/1437490
#SPJ2
What is the percent composition of Iron in
Fez(Cr207)3
Answer:
Explanation:
The percentage composition of iron (Fe) in Fe2(Cr207)3 can be calculated by finding the molar mass of Fe and the compound
Question #9: What is the
temperature at an altitude of 50
kilometers above sea level?
Answer:
20ºCelsius
Explanation:
What is the oxidation state of S in S2032-?
O A. +3
O B. -2
O C. +4
D. +2
Answer: D.) +2
so the oxidation state of sulfur is +2.
Explanation:
halp balance plez (⊙◡⊙)
Answer: SnO2 + 2 H2 = Sn + 2 H2O
Explanation: I used a balance equation website. It's called WebQC if you want to check it out for future help.
WHAT ARE SOME POSSIBLE CONSEQUENCES IF A HUMAN BODY DOES NOT MAINTAIN
HOMEOSTASIS
Answer: If homeostasis is disrupted, it must be controlled or a disease/disorder may result.
Explanation: What happens if there's disruption? Your body systems work together to maintain balance. If that balance is shifted or disrupted and homeostasis is not maintained, the results may not allow normal functioning of the organism.
Which one do I pick?
Answer:
i would go for the 2nd as far as i know they were a big continent and an earthquake separes them all
For the balanced equation shown below, if the reaction of 34.6 grams of C2H4F2 produces 6.90 grams of H2O, what is the percent yield?
2C2H4F2 + 3O2 → 4CO + 2H2O + 4HF
lima ribu juta miliar triliun ......
A flask contains a mixture of hydrogen gas and water vapor at STP. If the pressure of the water vapor is 19.5 mmHg, then what is the pressure of the hydrogen gas?
779 mmHg
779 mmHg
760 mmHg
760 mmHg
81.7 mmHg
81.7 mmHg
741 mmHg
Answer:
I would say A but not sure
Explanation:
What is the mass of oxygen in 10 grams of water?
Answer:
The answer is 16.00 amu
someone help ,, I'll give brainliest loll .
Answer:
the answer is the emission of radiation from an atoms of a unstable element
Answer:
the answer is number 3, the emission of radiation...
Explanation: