Answer:
0.01981 gallons.
Explanation:
In this problem, we need to convert 75 mL of water to gallons.
We know that, 1 gallon = 3785.41 mL
To convert 75 mL to gallons, we must use to the unitary method such that,
1 mL = (1/3785.41) gallon
So,
So, there are 0.01981 gallons in 75 mL of water.
A diatomic molecule has a valency of two(2) for a non metal it ,will be negatively charged whereas for a metal, it will be positively charged
0.986 moles of CaO are formed when 98.60 g of decomposes.
<h3>What are moles?</h3>
A mole is defined as 6.02214076 × of some chemical unit, be it atoms, molecules, ions, or others.
Number of moles of CaCO3 =
Number of moles of CaCO3 =
= 0.986 moles
Reaction:
→
Since the reaction is 1:1:1.
So 0.986 moles of CaO are formed.
Learn more about moles here:
brainly.com/question/26416088
#SPJ1
1.23x10^2
So there should be one number to the left at all times, even a zero when it comes to decimals and negative scientific numbers. Also 10 is raised to the power by how many you need to move the decimal for the original number.
Answer:
B. hydrogen
Explanation:
that's because hydrogen is an element.