24
Explanation:
An atom is the smallest indivisible particle of any matter. Atoms are distinct and distinguishable from one another and are called elements:
CH₃(CH₂)₅0CH₃
There are 3 different kinds of atoms in the compound above called
elements
Carbon
Hydrogen
Oxygen
In the compound the subscripts gives the number of atoms:
C - 7
H - 16
0 - 1
Number of atoms in the compound is 24.
Learn more:
Number of atoms brainly.com/question/10419836
#learnwithBrainly
Answer:
Normal, clean rain has a pH value of between 5.0 and 5.5, which is slightly acidic. However, when rain combines with sulfur dioxide or nitrogen oxides—produced from power plants and automobiles—the rain becomes much more acidic. Typical acid rain has a pH value of 4.0.
Explanation:
keep smiling (θ‿θ)
The answer is C. Because you need the sun to start your cycle which starts with water evaporation
Answer:
Q = 30284.88 j
Explanation:
Given data:
Mass of ethanol = 257 g
Cp = 2.4 j/g.°C
Chnage in temperature = ΔT = 49.1°C
Heat required = ?
Solution:
Specific heat capacity:
It is the amount of heat required to raise the temperature of one gram of substance by one degree.
Formula:
Q = m.c. ΔT
Q = amount of heat absorbed or released
m = mass of given substance
c = specific heat capacity of substance
ΔT = change in temperature
Now we will put the values in formula.
Q = 257 g× 2.4 j/g.°C × 49.1 °C
Q = 30284.88 j
