Answer:
SnCl₂·2 H₂O.
Explanation:
Relative atomic mass data from a modern periodic table:
- Sn: 118.710;
- Cl: 35.45;
- H: 1.008;
- O: 15.999.
How many moles of SnCl₂ formula units in this sample?
The first mass 4.90 grams contain both the SnCl₂ formula units and a number of water molecules. Luckily, the mass of the dehydrated salt 4.10 grams contains only SnCl₂.
Formula mass of tin (II) chloride SnCl₂:
.
Number of moles of tin (II) chloride SnCl₂ formula units in this sample:
.
How many moles of water molecules H₂O in this sample?
Water of crystallization exist as H₂O molecules in typical hydrated salts. The molar mass of these molecules will be:
.
The mass of water in the hydrated salt is the same as the mass that is lost when the water molecules are removed and the salt is dehydrated.
In other words,
.
.
What's the coefficient in front of water in the formula of this hydrated salt? In other words, how many water molecules are there in the compound for each SnCl₂ formula unit?
.
There are approximately two water molecules for each SnCl₂ formula unit. The formula of this compound shall thus be 
.
Answer:
Light-year is the distance light travels in one year. Light zips through interstellar space at 186,000 miles (300,000 kilometers) per second and 5.88 trillion miles (9.46 trillion kilometers) per year
Explanation:
Hope it helps
Answer:
Explanation:Hurricane are fast moving that blows. It is formed over warm waterbodies and it can destroy lives and properties.
Florida is a state in united state while New york is an extention from florida. Florida is know to be contain many water bodies and the rise of warm water over time could lead to hurricane. Hurricane in New york will be few because its just a city in florida there are still many mkre cities in florida such that when hurricane occurs it of great impact.
The mass of the piece of wood is 35.58 g.
Joule = M × T × C
Where, M = mass
T = change in temperature(42C-23C=19 C)
C = specific heat capacity = 1.716 joules/gram
Substituting the values in the equation,
1160 = M × 19 × 1.716
M = 1160/32.604 = 35.58 g
Therefore, the mass of the piece of wood = 35.58 g
<h3>What is meant by specific heat capacity?</h3>
A material's specific heat capacity, which is defined as its heat capacity divided by its mass, determines how much energy is required to increase a gram's temperature by one degree Celsius (or one Kelvin)
<h3>What is mass?</h3>
Mass is the quantity of matter in a physical body.
To learn more about specific heat capacity visit:
brainly.com/question/1747943
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Your protons are correct but it’s 28 neutrons not 27!
