Answer:
2CaO + 2CO2 → 2CaCO2 + O2 is right
Answer:
6
Explanation:
bromine has 1, hydrogen has 4 and nitrogen has 1 therefore equaling 6
Answer is: 550,021 kWh of energy is needed to heat the water
V(water) = 51 gal = 51·3,78 = 189,3 L.
ΔT(water) = 25°C.
d(water) = 1000 g/L.
m(water) = V(water) · d(water)
m(water) = 189,3 L · 1000 g/L
m(water) = 189300 g.
Q = m(water) · ΔT(water) · C(water)
Q = 189300 g · 25°C · 4,184 J/°C·g
Q = 19800780 J = 19800,78 kJ ÷ 3600 = 550,021 kWh.
Answer:
6.33 years
Explanation:
In this question, we determine the NPER or the time period that is shown in the attached spreadsheet
Given that,
Present value = (9% × $1,000) ÷ (8.75%) = $1,028.57
Assuming figure Future value = $1,000
Rate of interest = 8.4%
PMT = $1,000 × 9% = $90
The formula is shown below:
= NPER(Rate;PMT;-PV;FV;type)
The present value come in negative
So, after solving this, the answer would be 6.33 years
Due to the tilt of the earth