Given:
density of water is <span>approximately 1.0 g/mL
block of material
</span><span>volume of 1.2 x 10^4 in^3
and weighing 350 lb
</span>
Required:
Which will float
Solution:
D = M/V where D is density, M is mass and V is volume
convert <span>1.2 x 10^4 in^3 into mL
</span><span>1.2 x 10^4 in^3 (16.39 mL/ 1 in3) = 196,980 mL
</span>
convert <span>350 lb into grams
350 lb (454 grams/1 lb) = 158,900 grams
D = M/V = </span>158,900 grams/ <span>196,980 mL
D = 0.807 g/mL
The block will float in water because it is less dense than water</span>
Answer:
True
Explanation:
The reaction between Diisopropyl ether and concentrated aqueous HI forms two initial organic products as shown in the image attached.
The hydrogen of the HI becomes attached to the oxygen in the ether leading to a cleavage of the C-O bond to yield the first compound. The I^- become attached to the other moiety in the original molecule to yield the second compound as shown in the image attached.
It has to be iron because oxygen doesn’t run out unless being used by something like sticking it in a bubble.
Answer:
Explanation: the kenetic energy of the molecules has increased. please mark me the brainliest
Atomic mass Ca = 40.078 a.m.u
40.078 g -------------------- 6.02x10²³ atoms
72.8 g ---------------------- ??
72.8 x ( 6.02x10²³) / 40.078 =
4.38x10²⁵ / 40.078 = 1.093x10²⁴ atoms
hope this helps!
