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pychu [463]
3 years ago
12

6. What does the symbol AH stand for?

Chemistry
1 answer:
Vesnalui [34]3 years ago
4 0

the heat of reaction for a chemical reaction

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A polyatomic ion can be found in which of the following choices?
emmasim [6.3K]

Answer:

Indeed, most ionic compounds contain polyatomic ions. Well-known examples are sodium hydroxide (NaOH) with OH- as the polyatomic anion, calcium carbonate (CaCO3), and ammonium nitrate (NH4NO3), which contains two polyatomic ions: NH+ and NO3-.

Explanation:

hope it helps

3 0
3 years ago
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If the temperature of water increases as you heat it, the temperature is the independent variable.
Simora [160]
False

becuase the temperates is dependant on heat or cold sources
5 0
3 years ago
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Convert 55 miles/ hour to feet/ second
mafiozo [28]

Answer:

80.685 feet/second

Explanation:

3 0
3 years ago
Which has the greatest percentage of oxygen? CO2, NO2,SO2 and MgO?​
Dahasolnce [82]

Answer:

CO₂

Explanation:

Please see attached picture for full solution.

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6 0
3 years ago
What pressure, in atmospheres, is exerted on the body of a diver if he is 38 ft below the surface of the water when atmospheric
Talja [164]

The pressure of diver = atmospheric pressure + water pressure

atmospheric pressure = 750 mmHg (as given) = 750 / 760 atm = 0.987 atm

Water pressure is

P = hρg

where

h = height of water = 38 ft

1 ft = 0.3048

38 ft = 11.58 m

ρ = density  = 1000 Kg / m³

g = gravitational constant  = 9.81 m/s2

P = 11.58 X 1000 X 9.81 = 113599.8 Kg / m s^2 Or N /m^2

1 N / m^2 = 1 pa = 9.869 X 10^-6 atm

P = 113599.8 Pa = 1.12 atm

Total pressure = 1.12 + 0.987 atm = 2.107 atm = 2.1 atm (two significant figures)



5 0
3 years ago
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