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kirill [66]
4 years ago
15

What is the resulting formula unit when calcium and sulfur bond?

Chemistry
2 answers:
uranmaximum [27]4 years ago
5 0
Answer:

calcium sulfide

yaroslaw [1]4 years ago
3 0
Calcium + sulfur = calcium sulfide
Na + S = NaS
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A chemical reaction in which two or more substances undergo a chemical union to form a more complex substance is a _______ react
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I believe the correct answer is B. Combination.
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4 years ago
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Convert 23 kg to ounces (2.2 lbs = 1 kg) (1 lb = 16 ounces)
Romashka-Z-Leto [24]

Answer:

23 kgs = 809.6 ounces

Explanation:

given:

1 kg = 2.2 ibs

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5 0
3 years ago
An empty beaker is weighed and found to weigh 23.1 g. Some potassium chloride is then added to the beaker and weighed again. The
GuDViN [60]

Answer:Mass of Potassium chloride =1.762g

Explanation:

Mass of empty beaker = 23.100 g

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8 0
3 years ago
Croquet balls must have a mass of 0.50 kg. A red croquet ball, moving at 10
julsineya [31]

The final speed of the  green ball : 8.5 m/s

<h3>Further explanation</h3>

Given

mass of Croquet ball = 0.5 kg

v₁= 10 m/s

v₁'= 1.5 m/s

Required

the final speed

Solution

The law of conservation of momentum

m₁v₁ + m₂v₂ = m₁v₁ '+ m₂v₂' (1=red croquet ball, 2=green croquet ball)

v₂=0 (at rest)

Input the value :

\tt 0.5\times 10+0.5\times 0=0.5\times 1.5+0.5\times v_2'\\\\5=0.75+0.5v_2\\\\4.25=0.5v_2\rightarrow v_2=8.5~m/s

8 0
3 years ago
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dybincka [34]

Answer:

<em>Proteins, carbohydrates, nucleic acids, and lipids are the four major classes of biological macromolecules—large molecules necessary for life that are built from smaller organic molecules. Macromolecules are made up of single units known as monomers that are joined by covalent bonds to form larger polymers.</em>

Explanation:

Have a great day!

8 0
3 years ago
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