Explanation:
<u>Fahrenheit Scale
</u>
Fahrenheit temperature scale is the scale which is based on:
(a) For freezing point of the water, 32 °F.
(b) For boiling point of the water, 212 °F.
With interval between two being divided into equal 180 parts.
<u>
Celsius Scale
</u>
Celsius temperature scale is the scale which is based on:
(a) For freezing point of the water, 0 °C
(b) For boiling point of the water, 100 °C.
With interval between two being divided into equal 100 parts.
<u>Kelvin Scale
</u>
It denotes the triple point of water where the solid, liquid, and gas phases exist in equilibrium which is at 273.16 K.
kelvin is defined as 1/ 273.16 of triple point temperature.
Answer:
3.0 moles.
Explanation:
- It is a stichiometry problem.
- The chemical reaction of reacting hydrogen with oxygen to produce water is:
<em>H₂ + 1/2 O₂ → H₂O.</em>
- It is clear that <em><u>1.0 mole of H₂</u></em> reacts with 0.5 mole of O₂ to produce <u><em>1.0 mole of water</em></u>.
- The ratio of the reacting hydrogen to the produced water is 1:1.
∴ The number of moles of water created from reacting 3.0 moles of hydrogen completely with excess oxygen = 3.0 moles.
The optimal pH is 6.9. The pancreatic amylase is a hydrolase secreted by pancreas and will go into the alimentary canal. The working environment has a pH of 6.9. So the optimal pH for the enzyme needs to be 6.9.
Answer:
2Al+ 6HNO3 ---- 3H2 + 2Al(NO3)3
Explanation:
Put coefficient a,b,c, and d for calculation:
a Al + b HNO3 = c H2 + d Al(NO3)3
for Al: a = d
for H: b = 2c
for N: b = 3d
for O: 3b = 9d
Suppose a=1, then d=1, b=3, c=3/2
multiply 2 to make all natural number, a=2, then b=6, c=3, d=2
Answer: it would be b time taken by the glass surface to dry
Explanation:
i had took the test and i got it right
