The specific heat of ice is 0.5 calories/gram.
60 grams of ice will require calories to raise the temperature 1°c.
o
о 30
o
о 60
о120
o
о
0.5

The answer is: 30 calories

From the statement we have:

We can calculate heat transferred using the following equation;

q=mCΔT

Where:

q=HeatTransferred

m=mass=60g

C=SpecificHeat=0.5\frac{calories}{g}

ΔT=TemperatureChange=1°C

So, by substituting we have:

So, 60 grams of ice will require 30 calories to raise the temperature 1°C

Have a nice day!

that's what i got you can count the number of atoms

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o