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Tresset [83]
3 years ago
12

If you put an egg on a sidewalk on a hot day in July and try to cook it, you are using

Chemistry
1 answer:
Naddik [55]3 years ago
6 0
Thermal energy from the sun that has transferred to the sidewalk
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My teacher is grading this soon can someone help me ASAP!
Stolb23 [73]

10. You demonstrated the difference in density of the two objects. It is a physical property.

11. First calculate the density for all of them: density = mass/volume

Density:

A. 5/6 g/ml

B. 10/9 g/ml

C. 15/16 g/ml

D. 20/10 g/ml

If the density of the substance is higher than the density of the substance it is put in, then it will sink. So substances B and D will sink in water, as their densities are higher than 1 g/ml.

12. Ammonia weighs less than water does-- for example, the weight of 8 gallons of ammonia will be equivalent to the weight of 5 gallons of water.

Hope this helped!

3 0
3 years ago
If the elastic modulus of cobalt (co) is 200 gpa, and the elastic modulus of tungsten carbide (wc) is 700 gpa, calculate the upp
Dmitry_Shevchenko [17]
To determine the upper bond
Ec(u) = EmVm + EpVp
Em is the elastic modulus of cobalt.
E₁ is the elastic modulus of the particulate
Vm is the volume fraction of cobalt
Vp is the volume fraction of particulate
substitute
Ec(u) = 200 (Vm) + 700 (Vp)
To determine the lower bound
Ec (l) = EmEp/VmEp+ VpEm
Substitute
Ec (l) = 200(700)/Vm(700) + Vp (200)
Ec (l) = 1400/7Vm+2Vp
7 0
4 years ago
"identify the part of the atom that most determines the chemical reactivity of the atom"
jeka94
Mostly the electrons will determine the reactivity
8 0
3 years ago
A student puts a glass of water in the freezer. Later, he notices ice forming on the surface of the water. Which property of wat
Karolina [17]
C.ice has a lower freezing point than liquid water

hope this helps
4 0
3 years ago
Read 2 more answers
Compare the function of a switch in an electric circuit to the function of a water faucet. How are they different?
Sever21 [200]
They both turn something on, and the way they are different is the way they turn it off<span>
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5 0
3 years ago
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