Answer:
Δt = 90.00 °C
Explanation:
The nutritional information on a cereal box shows that one serving of dry cereal has 90 calories (actually kilocalories) so
The amount of heat is 90.00 Kcal
Q= 90000 cal
The mass of water is m = 1 kg = 1000 g
There is a formula that relates the amount of heat, the mass and the temperature variation :
Q = C.m.Δt
Where Q is the amount of heat, m is the mass,Δt is the temperature variation and finally C is the Specific heat (in this case C=Water specific heat)
C(Water) = 1.00 (cal/g.°C)
Q = C.m.Δt
90000 cal = 1.00 (cal/g.°C). 1000 g .Δt
Solving, Δt = 90.00 °C
Be aware of having all in congruent units. Also, we are supposing that water is in solid state.Otherwise, C(Water) ≠ 1.00 (cal/g.°C)
Since it talks about the number of particles, we would need the Avogadro's number which is an empirical value equal to 6.022×10²³ particles/mole. Therefore, to determine the number of particles, such as molecules, just multiple the number of moles to the Avogadro's number:
Number of Br₂ molecules = 0.42 mol *6.022×10²³ molecules/mole = 2.53×10²³ molecules
Answer:
M=3
B=25
Equation= 3x+25
Explanation:
M is your slope and if you follow the slope- intercept formula (y=m+b) you just need to plug in the numbers.
Thus your answer:
M=3
B=25
Equation= 3x+25
<span>orbital shell is the</span><span> the circular paths around the nucleus of an atom along which the electrons traverse.</span>
Answer:
The carbons of the acetyl group oxidize which generate CO2, and in turn H2O.
Explanation:
The pyruvic acid that is generated during glycolysis enters the mitochondria. Inside this organelle, the acid molecules undergo a process called oxidative decaborxylation in which an enzyme of several cofactors is involved, one of which is coenzyme A. Pyruvic acid is transformed into an acetyl molecule and these are been introduced to the begining of the Krebs Cycle where the acetyl-group (2C) from acetyl-CoA is transferred to oxaloacetate (4C) to produce citrate (6C). As the molecule cycles the two carbons of the acetyl oxidize and are released in the form of CO2. Then the energy of the Krebs cycle becomes sufficient to reduce three NAD +, which means that three NADH molecules are formed. Although a small portion of energy is used to generate ATP, most of it is used to reduce not only the NAD + but also the FAD which, if oxidized, passes to its reduced state, FADH2
