Answers
Answer:
69 grams, as SO2 is interacting with the burning of coal
Related Questions
A solid has a very high melting point, great hardness, and poor electrical conduction. This is a(n) ________ solid
Answers
PREDICT THE PRODUCTS AND AND BALANCE THE EQUATION
Al(s) + __O2 (g)
Answers
Answer:
See below.
Explanation:
Products :-
Al₂O₃ (aluminum oxide)
Balanced Equation :-
4Al + 3O₂ => 2Al₂O₃
Hope it helps.
A population of deer live in a forest ecosystem. Which of these describes a density-independent factor that could affect this population?
A. An invasive species causes increased competition for space.
B. A new predator is introduced into the ecosystem.
C. A wildfire occurs in the ecosystem.
D. The deer population's food supply decreases.
Answers
Answer:C. A wildfire occurs in the ecosystem.
Explanation: I just got it right
If 17. 6 g of hcl are used to produce a 14. 5 l solution, what is the ph of the solution?.
Answers
This problem is providing us with the mass of hydrochloric acid and the volume of solution and asks for the pH of the resulting solution, which turns out to be 1.477.
pH calculationsIn chemistry, one can calculate the pH of a solution by firstly obtaining its molarity as the division of the moles of solute by the liters of solution, so in this case for HCl we have:
[tex]M=\frac{17.6g*\frac{1mol}{36.46g} }{14.5L} \\\\M=0.0333 M[/tex]
Next, due to the fact that hydrochloric acid is a strong acid, we realize its concentration is nearly the same to the released hydrogen ions to the solution upon ionization. Thereby, the resulting pH is:
[tex]pH=-log(0.0333)\\\\pH=1.477[/tex]
Which conserves as much decimals as significant figures in the molarity.
Learn more about pH calculations: brainly.com/question/1195974
help this mirrorball, please
Answers
Answer:
Option B
Explanation:
Avagadro's hypothesis showed that at constant temperature and pressure equal volume of all gases contains equal no of molecules.
Avagadro's constant is known as 6.022×10^23
Which of the following represents Avogadro's hypothesis?
Equal volumes of all gases under same conditions of temperature and pressure contain equal number of moleculesAvogadro's hypothesis is an experimental gas law that relates to the volume of gas to the amount of gas present. Its formula is :
[tex] \sf \frac{V_1}{ n_{1} } = \frac{V_2}{ n_{2} } [/tex]
Where,
V1 is first volumeV2 is second volumen1 is first amount of gas (in moles)n2 is second amount of gas (in moles)A gas initially at 273k is heated such that it volume and pressure became twice their original volume what is the new temperature of the gas
Answers
Answer:
1092K
Explanation:
We can use the combined gas law to answer this question:
P1V1/T1 = P2V2/T2,
where P, V and T are the Pressure, Volume, and Temperature for initial (1) and Final (2) conditions. Temperatures must be in Kelvin.
The problem states that V2 = 2V1 and P2 = 2P1.
Let's rearrange to solve for T2, which is the question:
T2 = T1(P2/P1)(V2/V1)
Note how the pressure and temperature values are written: as ratios. Enter the values:
T2 = (273K)(P2/P1)(V2/V1)
T2 = (273K)(2P1/P1)(2V1/V1) [Use the expressions for V2 and P2 from above]
T2 = (273K)(2)(2)
T2 = 1092K
Use the periodic table to determine the molar mass of silver oxide (Ag20).
Type the correct answer in the box. Use numerals, and express your answer to the correct number of significant figures
(blank) g/mol
Answers
The molar mass of the compound (i.e silver oxide) Ag₂O obtained from the periodic table is 232 g/mol
What is the molar mass of a compound?The molar mass a compound is simply defined as the sum of the molar masses of the individual elements found in the compound.
How to determine the molar mass of the compound Formula = Ag₂OMolar mass of Ag = 108 g/mol Molar mass of O = 16 g/mol Molar mass of Ag₂O =?Molar mass of Ag₂O = (2×108) + 16
Molar mass of Ag₂O = 216 + 16
Molar mass of Ag₂O = 232 g/mol
Learn more about molar mass:
https://brainly.com/question/25879634
Answer: 231.753 g/mol
Explanation:
got it right on Exact Path
What is the pH of a KOH solution that has [H ] = 1. 87 × 10–13 M? What is the pOH of a KOH solution that has [OH− ] = 5. 81 × 10−3 M? What is the pH of a solution of NaCl that has [H ] = 1. 00 × 10–7 M?.
Answers
pH is the hydrogen ion concentration and pOH is the hydroxide ion concentration in the solution. pH KOH is 12.73, pOH KOH is 2.24 and pH NaCl is 7.
What are pH and pOH?pH is the negative log of the hydrogen ion concentration and pOH is the negative log of the hydroxide ion concentration.
The relation between the pH and pOH can be given as, [tex]\rm pOH = 14 - pH[/tex]
The pH of KOH can be calculated by the formula,
[tex]\rm pH = \rm -log [H^{+}][/tex]
In the first case, the concentration of the KOH is [tex]1. 87 \times 10^{-13}\;\rm M[/tex]
Substituting values in the equation:
[tex]\begin{aligned} \rm pH &= \rm -log [H^{+}]\\\\&= \rm -log [1. 87 \times 10^{-13}\;\rm M ]\\\\&= 12.73\end{aligned}[/tex]
Hence, the pH of KOH is 12.73.
pOH of KOH can be calculated by the formula,
[tex]\rm pOH = \rm -log [OH^{-}][/tex]
The hydroxide concentration of the KOH solution is [tex]5. 81 \times 10^{-3}\;\rm M[/tex]
Substituting value in the equation:
[tex]\begin{aligned} \rm pOH &= \rm -log [OH^{-}]\\\\&= \rm -log [5. 81 \times 10^{-3}\;\rm M ]\\\\&= 2.24 \end{aligned}[/tex]
Hence, the pOH of KOH is 2.24
The pH of NaCl can be calculated by the formula,
[tex]\rm pH = \rm -log [H^{+}][/tex]
In the third case, the concentration of the NaCl is [tex]1. 00\times 10^{-7}\;\rm M[/tex]
Substituting values in the equation:
[tex]\begin{aligned} \rm pH &= \rm -log [H^{+}]\\\\&= \rm -log [1. 00 \times 10^{-7}\;\rm M ]\\\\&= 7 \end{aligned}[/tex]
Hence, the pH of KOH is 7.0.
Therefore, KOH is basic and NaCl is approximately neutral.
Learn more about pH and pOH here:
https://brainly.com/question/13885794
Which compound can inadvertently be created through the distillation process and can be fatal if consumed
Answers
Answer:
lWhich compound can inadvertently be created through the distillation process and can be fatal if consumed?
Methanol
* I NEED THIS *
Which of the following statements about oceans is incorrect?
A: Oceans collect water from other reservoirs including streams and rivers.
B: Oceans are the main source of drinking water on Earth's surface.
C: Oceans are connected to other reservoirs through evaporation and precipitation.
D: Oceans are the main type of reservoir that contain salt water.
Answers
Answer:
B is incorrect
Explanation:
Ocean are made of salt water which is undrinkable therefore they are not any type of drinking water source.
What kind of metal are spoons typically made out of?.
Answers
Answer:
Spoons are usually made out of steel
Answer:
Aluminum and steel
Explanation:
Why does one boil the charcoal-unknown-water mixture as opposed.
Answers
In a charcoal-water-unknown mixture, this must be boiled in opposition because the coal is insoluble, and with the heated mixture the coal can be removed.
What is the recrystallization process?It is used in the chemical sciences as a technique used to purify chemicals by heating materials to temperatures above the crystallization of each compound.
Therefore, when a component is heated, the impurities are dissolved and can be removed from the solution, generating the purification of the compound.
Find out more about recrystallization here:
https://brainly.com/question/10194206
what is osmosis and it's functions
Answers
Answer:
Osmosis is a passing of material and especially water through a membrane (as of a living cell) that will not allow all kinds of molecules to pass. Osmosis allows water to pass through cell membranes. The transfer of water from a dilute solution to a concentrated solution over a partly permeable membrane is defined as osmosis.
Explanation:
I hope this helps :)
What do you notice about the Total
height lost in each set of trials?
Answers
Answer: In each set of trails, the total height lost was the same.
Explanation:
what is the trophic level of common Prawn? primary,secondary,or tertiary consumer?
Answers
Answer:
secondary consumer
Explanation:
The salt water food web begins with producers (plants, algae, phytoplankton) that create food from sunlight, and continues with primary consumers (zooplankton) that eat the producers, followed by secondary consumers (shrimp, crustaceans, small fish) that eat the primary consumers, then tertiary consumers
What is the group number and period number for Selenium?
group 7A, period 4
group 6A, period 4
group 6a. period 3
group 4a, period 6
Answers
Answer:
Group 6a, period 4
Explanation:
Refer to image
Philip finds this information while doing research about margarine, which is a synthetic food product.
Hydrogenation is a process through which vegetable oil is changed from a liquid into a solid. During hydrogenation, a chemical reaction occurs. Hydrogen is added under pressure to the vegetable oil, resulting in a synthetic form of fat called trans fat. Trans fats typically taste better and can be stored longer than natural vegetable oils. A food product that results from hydrogenation is margarine. The Mayo Clinic website explains that margarines that contain trans fats increase the risk of heart disease and increased levels of cholesterol in the blood. Trans fats also reduce the amount of “good” cholesterol in the blood. Trans fats occur naturally in meat and dairy products. A 2009 report in Advances in Nutrition suggests that trans fats from animal products, such as dairy, beef, and lamb, may have beneficial health effects, including reducing the chance of developing heart disease or cancer. Which conclusion is best supported by the information that Philip gathered?
0 A) Trans fats have little effect on your health.
O B) Experts recommend avoiding trans fats altogether.
O C) Research shows conflicting evidence of the effect of trans fats on human health.
O D) Trans fats produced by hydrogenation have the same overall effect on human health as naturally occur- ring trans fats.
Answers
Answer:
Research shows conflicting evidence of the effect of trans fats on human health.
14. When weathering breaks down rocks with water, wears things away with wind, and scorches or freezes the earth
with temperature, it is called
weathering
15. In chemical weathering chemicals in the air mix with water to make
that eats
away at limestone rock Oxygen reacts with iron and forms
16. Erosion is the flow of water that moves rocks and sand, the push of the wind that carries sediments away and
even the movement of a
dropping pieces of rock at the bottoms of oceans and lakes.
Go onto brainpop.com and find the tutorial called Weathering. Login with sawgrassmid and poplearn.
and eventually
17. Weathering is the process that breaks down rocks into
18.
formation depends on sediments from weathering and those same bits make up sedimentary
rocks.
Answers
Answer:
14. Mechanical Weathering
15. & 16. I'm not sure
17. Smaller Pieces, Minerals I think
18. I can't remember
Explanation:
I'm not 100% sure about these but I hope they help. Sorry I couldn't do any more.
is the tendency of an object to resist a change in its state of motion.
Answers
Answer:
Inertia is the tendency of an object to resist changes in its state of motion.
Explanation:
hope this helps
What are bubbles (fizzes) in a soda can be described as??
Liquid to Gas or Gas to Liquid
Answers
Answer:
Liquid to Gas
Explanation:
The drink in the soda is a liquid and when you open the can, the CO2 leaves the container.
Hope this helped! :)
have a good day!
True or false, some molecules have the same molecular formula as their empirical formula.
Answers
Answer:
True, some molecules have the same molecular formula as their empirical formula.
Explanation:
The empirical formula of many compounds may be the same. Formaldehyde, for example, has the chemical formula CH2O, which is equal to the empirical formula of glucose. Each molecule of formaldehyde has one carbon atom, two hydrogen atoms, and one oxygen atom.
What is the pH of a solution of RbOH with a concentration of 0.86 M? Answer to 2 decimal places
Answers
Answer:The pH of the solution is given by pH=−log([H3O+])
Explanation:so you can't use
pH
=
−
log
(
0.150
)
because that's the concentration of the hydroxide anions,
OH
−
, not of the hydronium cations,
H
3
O
+
. In essence, you calculated the
pOH
of the solution, not its
pH
.
Sodium hydroxide is a strong base, which means that it dissociates completely in aqueous solution to produce hydroxide anions in a
1
:
1
mole ratio.
NaOH
(
a
q
)
→
Na
+
(
a
q
)
+
OH
−
(
a
q
)
So your solution has
[
OH
−
]
=
[
NaOH
]
=
0.150 M
Now, the
pOH
of the solution can be calculated by using
pOH
=
−
log
(
[
OH
−
]
)
−−−−−−−−−−−−−−−−−−−−
In your case, you have
pOH
=
−
log
(
0.150
)
=
0.824
Now, an aqueous solution at
25
∘
C
has
pH + pOH
=
14
−−−−−−−−−−−−−−so you can't use
pH
=
−
log
(
0.150
)
because that's the concentration of the hydroxide anions,
OH
−
, not of the hydronium cations,
H
3
O
+
. In essence, you calculated the
pOH
of the solution, not its
pH
.
Sodium hydroxide is a strong base, which means that it dissociates completely in aqueous solution to produce hydroxide anions in a
1
:
1
mole ratio.
NaOH
(
a
q
)
→
Na
+
(
a
q
)
+
OH
−
(
a
q
)
So your solution has
[
OH
−
]
=
[
NaOH
]
=
0.150 M
Now, the
pOH
of the solution can be calculated by using
pOH
=
−
log
(
[
OH
−
]
)
−−−−−−−−−−−−−−−−−−−−
In your case, you have
pOH
=
−
log
(
0.150
)
=
0.824
Now, an aqueous solution at
25
∘
C
has
pH + pOH
=
14
−−−−−−−−−−−−−−
Which symptoms are common with cardiac dysrhythmias? Select all that apply.
low blood pressure
fluid buildup in the hands
dizziness
palpitations
headaches
Answers
Answer: low blood, dizziness, and palpitations
Explanation: Im doing the assignment now
how many CO2 molecules exist in the following reaction? C3H8 + 5O2 >>> 3CO2 + 4H2O
Answers
Answer:
21.0g of CO2
Explanation:
(VIEW PHOTO) Identify the parts of the equation by dragging each label below to the correct arrow on the diagram. Drag the items on the left to the correct location on the right.
Answers
The location are Solid, reactants, aqueous, liquid, gas.
A strong has a precise form and volume. A liquid has a particular quantity, but takes the shape of its field. A gasoline lacks either a defined form or quantity. Plasma is similar to a gasoline in that its particles are very some distance aside, but a gasoline is electrically neutral and plasma has a rate.
What's chemical response?A chemical reaction occurs while one or greater chemical substances are modified into one or greater other chemical compounds. Examples: iron and oxygen combining to make rust. vinegar and baking soda combining to make sodium acetate, carbon dioxide and water.
What's strong ?A strong is a state of be counted that keeps its form and density when now not constrained.
What are 3 forms of gases?Elemental gasses. those are the factors that exist as gasses at trendy temperature and stress.pure and mixed gases. pure gases can be made of person atoms consisting of inert gases or may be constructed from a group of various atoms which include carbon dioxide. poisonous gases.Learn more about chemical compounds here: https://brainly.com/question/26487468
#SPJ2
As molecules move in a current of air or water, heat is transferred by ____________.
Answers
Answer:
It is called Convection. Hope this helps!!!
Identify the different stages of the water cycle and the changes in the phases of water. Illustrate the arrangement and motion of particles in each phase change. Use the water cycle diagram below as reference.
Answers
The water cycle is largely composed of evaporation, condensation and precipitation.
What is the water cycle?The water cycle has to do with the movement of water throughout the ecosystem. It is one of the biogeochemical cycles that exists in nature. In the water cycle, water evaporates from the earth surface, condenses and falls as rain.
Hence, the major components of the water cycle are;
EvaporationCondensationPrecipitationLearn more about water cycle: https://brainly.com/question/1151425
Give the characteristic of a first order reaction having only one reactant.
Answers
Answer:
As the first order reaction depends on (a uni-molecular reaction) the concentration of only one reactant.
And the rate law of the reaction of first order with a reactant A is:
rate = K[A]^-1
when K is the rate constant.
three ways in which atmosphere nitrogen can be fixed
Answers
There are three major ways in which this happens: first, by lightning, when the energy of lightning strikes breaks apart the N2 bonds; second, by industrial methods, when humans break the bonds with high pressure and temperatures, and hydrogen; finally, by biological fixation, with bacteria living in the soil.
This question is about the extraction of metals.
Element R is extracted from its oxide by reduction with hydrogen.
The equation for the reaction is:
3H2 + RO3 R + 3H20
03
1
The sum of the relative formula masses (M) of the reactants (3H2 + RO3) is 150
Calculate the relative atomic mass (A) of R.
Relative atomic masses (A): H = 1 O= 16
I
I
[2 marks]
Relative atomic mass (A) of R =
Answers
The relative atomic mass of the element R is 96.
What is the relatives atomic mass of an element?The relative atomic mass of an element is the number of times the mass of one mole of that element is heavier than 1/12 the mass of one atom of carbon-12.
The relative atomic mass of an element can also be obtained from the fomula mass of the compound the element occurs in
The sum of the relative formula masses (M) of the reactants (3H2 + RO3) = 150
3 × 2 × 1 + R + 16 × 3 = 150
R = 150 - 54
R = 96
Therefore, the relative atomic mass of R is 96.
Learn more about relative atomic mass at: https://brainly.com/question/3187640
#SPJ6
