It is 2 KJ
It is because the formula is :
q=m∆Hf
where m is the mass and ∆Hf is the heat fusion.
So, we get:
q=80×25
q=2000J or 2 KJ
Hydrophobic means "water fearing" while polar molecules are hydrophilic meaning "water loving." Hydrophobic exclusion describes the tendency, for examples, of multiple oil droplets in water to coalesce into fewer, larger droplets
Answer:
pH is an important quantity that reflects the chemical conditions of a solution. The pH can control the availability of nutrients, biological functions, microbial activity, and the behavior of chemicals.
Please Mark Brainliest If This Helped!
<span>Scientists have: (Select all that apply.)
a. observed amino acids forming spontaneously
b. demonstrated how amino acids can form from the environment
c. confirmed that the ultimate source of amino acids and proteins is from plants
d. not yet determined the source of amino acids
</span><span>
The correct answers are:
Demonstrated how amino acids can form from the environment
Confirmed that the ultimate source of amino acids and proteins is from plants</span>
Answer:
4200ml
Explanation:
Converting 3.1kg to g
3.1*1000= 3100g
Since density = mass/volume, then
volume = mass/ density
Therefore volume = 3100/0.74
= 4189.2ml
converting it to two significant figures
= 4200ml
