Answer:
your answer is (a) Copper Metal
Explanation:
Answer:
D) 6
Explanation:
The complete balancd equation:
6Li + 1N2 = 2 Li3N
<span>3.10 moles SiO2 (1 mole Si/1 mole SiO2)(6.022 X 1023/1 mole Si) = 1.87 X 1024
</span><span>= 1.20 X 1023 atoms of oxygen.</span>
Answer:
Look below
Explanation:
The formula for density is:

Therefore in order to find the density of a solid, you must find the mass and the volume first.
To find the mass, you can use a scale.
To find the volume, you can use the water displacement method. For example, if you fill the water of a graduated cylinder to 10 mL, and then you put a rock inside, and it rises to 15 mL, then the volume (of the rock) is 15mL-10mL=5mL.
Ice is the solid phase of water, so it is not silicate.