CHEMISTRY MIDDLE SCHOOL

.Calculate the number of moles of each component element in the compound.

Answers

Answer 1
Answer:

Answer:

H = 1.98

S = 1.02

O = 4.08

Explanation:
Answer 2
Answer:

Step 1: Find the Molar Mass of Adrenaline

Step 2: Find the Mass of Oxygen in 1 mol of Adrenaline

Step 3: Calculate Percentage Composition of Oxygen by Mass

Step 4: Calculate Mass of Oxygen in Sample

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Answers

the answer would just be:
Tungsten
hope that this helps you! =)

How many grams of water can be produced when 11.7 moles of ethane (C2H6) react with excess oxygen gas? Unbalanced equation: C2H6 + O2 → CO2 + H2O

Answers

 2 C2H6 + 7 O2 → 4 CO2 + 6 H2O

Which molecule does not have a linear molecular shape?
O3
OCN-
Co2
Cs2

Answers

The molecule that doesn't have a linear molecular shape is 03.i.e.Ozone.

An organism's _______ describes its genetic composition. An organism's _______ describes its appearance or observable characteristics.A.
species; heredity
B.
genotype; phenotype
C.
heredity; species
D.
phenotype; genotype

Answers

B. 
genotype; phenotype

Genetic variation determines inherited  differences between individuals . Our height or eye color are inherited from our parents, but our phenotype is also affected by environment such as the food we eat (diet), drugs we take, toxins surrounding us, climate, location, culture, physical accidents and lifestyle.

Answer: Option B

Explanation: Any organism can be defined by two factors one is its genotype and other one is its phenotype.

The genetic composition of the body of an organism can be said as its genotype. The genes are present inside the cell and determines the physical characters of an organism.

The phenotype can be defined as the physical appearance of the organism. Example: height, color of the organism.

What is the percent of hydrogen in C12H22011

Answers

Hydrogen: 6.478%

Carbon: 42.106

(C*12)+(H*22011)=505.272+142587.258=143092.53

Beginning with an explanation of gravity's effect on a nebula, explain how we humans owe our existence to gravity.

Answers

When nebulae collapses due to their own weight, this is due to gravity. The gravity causes atoms to fuse and a protostar is born from the fusion of hydrogen. Fusion of hydrogen forms heavier elements such as helium and more fusion of helium forms carbon. Carbon is the significant element of life and is formed in the center of stars due to nuclear fusion as a result of gravitational force.

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