Answer:
C
Explanation:
A chemist would determine the different kinds of fat found in milk chocolate.
Answer:
The balanced chemical equation is given as:
Explanation:
When potassium hydroxide reacts with phosphoric acid it gives potassium phosphate and water as a products.
The balanced chemical equation is given as:
According to reaction, 3 moles of potassium hydroxide recats with 1 mole of phosphoric acid to give 1 mole of potassium phosphate and 3 moles of water.
Mg (s) ---> Mg²⁺ (aq) + 2e
Co²⁺ (aq) + 2e ---> Co(s)
Cu (s) ---> Cu²⁺ (aq) + 2e
Au²⁺ (aq) + 2e ---> Au(s)
Answer: Neon
Explanation:
First, we'll use the ideal gas law, pV = nRT, to solve for the moles of unknown gas (n)
So putting all the values we get:
2.00 x 5.60 = n x 0.0821 x 273
n x 0.0821 x 273 = 2 x 5.60
22.4133n = 11.2
n = 0.499 moles
So the molar mass of the gas will be 10.1/0.499
= <u>20.24 g/mol</u>
The molar mass corresponds to Neon gas. Therefore, the identity of the gas is Neon
<u>Answer:</u>
density of solid = 4.5 g/cm³
<u>Explanation:</u>
density = mass ÷ volume
• We know the mass of the object (135 g). We need to calculate the volume:
Volume = length × width × thickness
= 5 cm × 3 cm × 2 cm
= 30 cm³
• Now we can calculate the solid's density:
density = 135 g ÷ 30 cm³
= 4.5 g/cm³