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sveticcg [70]
3 years ago
6

Helpppp meee plzzzzzzz

Chemistry
1 answer:
JulijaS [17]3 years ago
6 0
5- sr +2 O -2. SrO
6- Mg +2 F-1 MgF2
7- B+3 P-3 BP
8- Li +1 N-3 Li3N
9- Ba +2 Br -1 BaBr2
10- Al +3 P -3 AlP

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CaCO2=CaO + CO₂<br> How do I balance this equation?
7nadin3 [17]

Answer:

2CaO + 2CO2 → 2CaCO2 + O2 is right

4 0
2 years ago
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How many atoms does NH4Br have
Shalnov [3]

Answer:

6

Explanation:

bromine has 1, hydrogen has 4 and nitrogen has 1 therefore equaling 6

5 0
3 years ago
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Water heater contains 56 part a how many kilowatt-hours of energy are necessary to heat the water in the water heater by 25 ?c?
DochEvi [55]

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.



6 0
3 years ago
Shinoda Corp. has 9 percent coupon bonds making annual payments with a YTM of 8.4 percent. The current yield on these bonds is 8
Genrish500 [490]

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

6 0
3 years ago
Why were your results for the Southern Hemisphere opposite of what you found for
bulgar [2K]
Due to the tilt of the earth
6 0
2 years ago
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