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Arisa [49]
3 years ago
14

Urine, with a ph of 6, is _________ times more acidic than seawater, with a ph of 8.?

Chemistry
1 answer:
PSYCHO15rus [73]3 years ago
6 0
The correct answer is 100. Hope I helped! :]
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Balance equation Al(s)+__CuSO4(aq) = ____Al2(SO4)3(aq)+____Cu(s)
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2Al +3CuSO4=Al2 (SO4)3+3Cu.

is the balanced equation.

HOPE IT HELPS YOU '_'
8 0
4 years ago
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the temperature of a sample of water increases from 20celsius to 46.6celsius as it absorbs 5650 J of heat. what is the mass of t
Levart [38]

Answer:

m = 50.74 kg

Explanation:

We have,

Initial temperature of water is 20 degrees Celsius

Final temperature of water is 46.6 degrees Celsius

Heat absorbed is 5650 J

It is required to find the mass of the sample. The heat absorbed is given by the formula ad follows :

Q=mc\Delta T

c is specific heat of water, c = 4.186 J/g°C

So,

m=\dfrac{Q}{c\Delta T}\\\\m=\dfrac{5650}{4.186\times (46.6-20)}\\\\m=50.74\ kg

So, the mass of the sample is 50.74 kg.

8 0
3 years ago
You have a 28.2-g sample of a metal heated to 95.2°c. you drop it in a calorimeter with 100. g of water at 25.1°c. the final tem
Vlad [161]

The heat lost by the metal should be equal to the heat gained by the water. We know that the heat capacity of water is simply 4.186 J / g °C. Therefore:

100 g * 4.186 J / g °C * (31°C – 25.1°C) = 28.2 g * Cp * (95.2°C - 31°C)

<span>Cp = 1.36 J / g °C</span>

4 0
3 years ago
Of the reactions involved in the photodecomposition of ozone (shown below), which are photochemical? 1. o2 (g) + hν → o (g) + o
Taya2010 [7]

Answer:

The answers are...

Explanation:

2 and 4.

8 0
3 years ago
Express 7.25 in scientific notation
sergeinik [125]
Considering that scientific notation has to move the decimal over so there is only one digit in the Tens place, that is the scientific notation.
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3 years ago
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