What is the formula of sulfurous acid?
H2S
HSO4
H2SO4
H2SO3
Answers
The correct answer is H2SO3 I took the assignment already
Related Questions
Which of the following statements correctly describe(s) the driving forces for diffusion of Na+ and K+ ions through their respective channels?
The usual units of density are : cm3/ gcm2/gg/cmNm
Which of the following affects the rate of a chemical reaction?A. the presence of a catalyst B. the temperature C. the concentration of reactants D. all of the above
Which word equation shows lithium oxide being formed from the reaction between oxygen and lithium?1.)oxygen + lithium oxide to lithium2.)lithium + oxygen to lithium oxide3.)oxygen + lithium to lithium + oxide4.)lithium oxide to lithium + oxygen
Answers
2H2 + O2 --> 2H2O
Next, the moles of the reactants must be used in order to apply their stoichiometric relationships. Note that 1 mole of oxygen needs 2 moles of hydrogen for the reaction proceed. Since there is only 1 mole of H2, only 0.5 moles of oxygen are consumed.
moles H2 = 2 g/ 2g/mol = 1 mole H2
moles O2 = 32 g/ 32g/mol = 1 mole O2
2H2 + O2 --> 2H2O
i 1 1 0
c 1 0.5 1
e 0 0.5 1
Assuming the reaction will proceed, there will be an excess of 0.5 mol O2 and a product of 1 mol H2O. This gives 18 grams of water.
Answers
Answer : The temperature on the kelvin scale is, 277.15 Kelvin
Explanation :
As we are given the temperature in degree Celsius. Now we have to need to convert the temperature from degree Celsius into kelvin.
Conversion used for the temperature from degree Celsius to Kelvin :
Therefore, the temperature on the kelvin scale is, 277.15 Kelvin
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Answer:
the living together in more or less intimate association or close union of two dissimilar organisms (as in parasitism or commensalism) especially : mutualism.
Explanation:
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Answers
Answer:
Geologists agree that Devils Tower began as magma, or molten rock buried beneath the Earth’s surface. What they cannot agree upon are the processes by which the magma cooled to form the Tower, or its relationship to the surrounding geology of the area. Numerous theories have been suggested to explain how Devils Tower formed. Geologists Carpenter and Russell studied Devils Tower in the late 1800s and concluded that the Tower was formed by an igneous intrusion (the forcible entry of magma through other rock layers). Later geologists searched for more detailed explanations.
The simplest explanation is that Devils Tower is a stock—a small intrusive body formed by magma which cooled underground and was later exposed by erosion (Figure 1). In 1907, scientists Darton and O’Hara decided that Devils Tower must be an eroded remnant of a laccolith. A laccolith is a large, mushroom-shaped mass of igneous rock which intrudes between the layers of sedimentary rocks but does not reach the surface. This produces a rounded bulge in the sedimentary layers above the intrusion (Figure 2). This idea was quite popular in the early 1900s when numerous studies were done on a number of laccoliths in the American southwest.
Other ideas have suggested that Devils Tower is a volcanic plug or that it is the neck of an extinct volcano (Figure 3). The limited evidence of volcanic activity (volcanic ash, lava fows, or volcanic debris) in the area creates doubt that the Tower was part of a volcanic system. It is possible that this material may simply have eroded away. In 2015, geologist Prokop Závada and his colleagues proposed their own hypothesis for the formation of the Tower. They compared it to a similar butte formation in the Czech Republic. Their hypothesis suggests that the Tower is the result of a maar-diatreme volcano (Figure 4). These form when magma encounters groundwater beneath the Earth’s surface. The super-heated water becomes steam. This steam expands explosively creating a crater on the surface. The crater fills with lava which cools and solidifes into a dome structure. Erosion wears away portions of the dome to create the Tower as we see it today.
The concept of erosion exposing the Tower is common to all of its modern formation theories. Ironically, the erosion which exposed the Tower also erased the evidence needed to determine which theory of Devils Tower’s formation is the correct one.
Explanation:
Answers
the ideal gas law equation is as follows
PV = nRT
where P - pressure
V - volume
n - number of moles
R - universal gas constant
T - temperature
so if the pressure, volume and temperature are already known
we are left with n and R
since R is the universal gas constant that has a known fixed value then R too is known
so we are left with 'n'
once we know temperature volume and pressure
we can find the number of moles of gas present using the ideal gas law equation
A.) the molar amount of gas
Hope it helps!