Answer:
photosynthesis
Explanation:
its the first step of the cycle
Before the person walks through burning coal, the person will make sure their feet are very wet. When they start walking on the coal, the moisture will evaporate and form a protective gas layer underneath the person's feet.
You can see examples of this if you happen to drip some water on a hot stove or any hot surface. The water will easily glide around on top of a newly formed layer of air underneath it, like air hockey pucks on an air hockey table.
Answer:
about 36.10 g
Explanation:
The proportion of interest is ...
mass/atoms = x/(1.810·10^24) = (12.0107 g)/(6.02214076·10^23)
Multiplying by 1.810·10^24, we find the mass of the sample to be ...
x = 36.0991 g
The mass of the sample is about 36.10 grams (to 4 s.f.).
Answer:
<h2>Density = 0.75 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula
From the question
mass = 450 g
volume = 6.0 × 10² mL
Substitute the values into the above formula and solve for the density
That's
We have the final answer as
<h3>Density = 0.75 g/mL</h3>
Hope this helps you
Answer:
Halogens family
Explanation:
Be familiar with the periodic table
