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Pani-rosa [81]
3 years ago
9

What is the mass of kilogram of an object that wileight 50.0 in round your answer to the nearest tenth

Chemistry
1 answer:
ANEK [815]3 years ago
3 0
Your question doesn't make sense
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Ametal used in hot water system?​
svet-max [94.6K]

Answer:

Nichrome

Answer: Hot water system coils are commonly made up of metal alloys which are a combination of two or more elements. The most commonly used metal alloy is “Nichrome”. Nichrome is an alloy of nickel (80%) and chromium (20%).

5 0
3 years ago
Calculate the heat absorbed by the water in a calorimeter when 175 grams of lead cools from 125.0°C to 22.0°C. The specific heat
Iteru [2.4K]

Answer:

Q = 233.42 J

Explanation:

Given data:

Mass of lead = 175 g

Initial temperature = 125.0°C

Final temperature = 22.0°C

Specific heat capacity of lead = 0.01295 J/g.°C

Heat absorbed by water = ?

Solution:

Heat  absorbed by water is actually the heat lost by the metal.

Thus, we will calculate the heat lost by metal.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = T2 - T1

ΔT = 22.0°C - 125.0°C

ΔT = -103°C

Q = 175 g × 0.01295 J/g.°C×-103°C

Q = -233.42 J

Heat absorbed by the water is 233.42 J.

5 0
3 years ago
Why does the mass number for an element differ from the average atomic mass for the element?​
yarga [219]

Answer:

the mass number is the number of protons and neutrons added and the average atomic mass is the weight of the protons and neutrons

4 0
3 years ago
Write the formula for the binary compound iron (III) oxide. (a)FeO , (b)Fe(III)O (c),Fe3O2 ,(d)Fe2O3
marishachu [46]

Answer:

I^3, aFeO BfEi^3 O, c, dFe^2 O^3

Explanation:

6 0
3 years ago
Bottom two answer pls
Alex17521 [72]

Answer:

i cant see it

Explanation: for real

3 0
3 years ago
Read 2 more answers
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