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irinina [24]
3 years ago
10

Anyone may I get help please ​

Chemistry
1 answer:
uranmaximum [27]3 years ago
6 0

Answer:

-pneumonoultramicroscopicsilicovolcanoconiosis.ogg

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How many grams of ice at -13 deg C must be added to 711 grams of water that is initially at a temperature of 87 deg C to produce
Basile [38]

Answer:

The answer to your question is m = 4.7 kg

Explanation:

Data

Ice                                   Water

mass = ?                          mass = 711 g

T₁ = -13°C                         T₁ = 87°C

T₂ = 10°C                         T₂ = 10°C

Ch = 2090 J/kg°K          Cw = 4180 J/kg°K

Process

1.- Convert temperature to kelvin

T₁ = 273 + (-13) = 260°K

T₁ water = 87 + 273 = 360 °K

T₂ = 10 + 273 = 283°K

2.- Write the equation of interchange of heat

                 - Heat lost = Heat absorbed

               - mwCw(T₂ - T₁) = miCi(T₂ - T₁)

-Substitution

              - 0.711(4180)(10 - 87) = m(2090)(10 - (-13))

- Simplification

                            228842.46 = 48070m

                            m = 228842.46/48070

-Result

                            m = 4.7 kg

4 0
4 years ago
The mass of proton<br>1) 1072* 10-28​
jasenka [17]

Answer:

Mass of proton is

<h2>1.6726219 × 10-27 Kg</h2>

HOPE U UNDERSTOOD

MARK AS BRAINLIEST ONE

THANKS

IF ANY DOUBTS? PLS COMMENT

5 0
3 years ago
Hormones taken as medicine can harm fish when the hormones end up in waterways. What does this show about the impact of chemical
iragen [17]
The answer to this is C. 
3 0
3 years ago
A gas with a volume of 4.0 liters at a pressure of 205 kilopascals is allowed to expand to a volume of 12.0 liters. What will th
Ksenya-84 [330]
Boyle's law p1V1=p2V2 

p2=(p1V1)/V2

p2=(205*10^3 Pa * 4*10^-3 m^3 ) / (12*10^-3 m^3)

p2= 68333 Pa
8 0
4 years ago
The process that provides the sun with its energy
SashulF [63]

Answer:

Nuclear fusion

Explanation:

5 0
3 years ago
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