Find the density of evaporated milk if 411 grams occupy 384 cm^3
Answers
Answer:
The answer is 1.07 g/cm³
Explanation:
The density of a substance can be found by using the formula
From the question
mass = 411 g
volume = 384 cm³
We have
We have the final answer as
1.07 g/cm³
Hope this helps you
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The mass number of an isotope of uranium is 238, and its atomic number is 92. Which symbol best represents this isotope of uranium?
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Water has a higher boiling point than expected because A. there is so much water vapor in the atmosphere. B. water molecules are not very massive. C. hydrogen and oxygen form single covalent bonds. D. of the strong attractions between polar water molecules
Answers
In an ionic compound, the smallest whole-number ratio of positive and negative ions that results in a neutral unit is called the formula unit.
What is ionic compound?
- The compound formed by the ionic bond is called ionic compound.
- The ionic compound is stronger than covalent compound.
- The ionic compound contains positive part called cation and negative part called an anion.
- Example: sodium chloride (
)
What is ionic bond?
- The bond formed by the complete transfer of electrons is called ionic bond.
learn about ionic compound,
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Answer:
It is called the formula unit
Answers
a. mass-mass problems
b. mass-volume problems
c. mass-particle problems
d. volume-volume problems
I believe the correct answer is option D. It is volume-volume problems that does not require the use of molar mass. Here you are dealing with molarities and volumes to determine concentrations. Molar mass is not part of any calculations.
Final answer:
The type of stoichiometric calculation that does not require the use of the molar mass is a calculation involving molar or stoichiometric ratios which are derived directly from the coefficients in a balanced chemical equation.
Explanation:
In stoichiometry, there are several types of calculations that can be performed. However, the type of stoichiometric calculation that does not require the use of the molar mass is the calculation involving the molar ratio, or stoichiometric ratio. This refers to the ratio of coefficients in a balanced chemical equation, which we use to determine the relative amounts of each substance involved in a chemical reaction.
An example of this is a balanced equation for the formation of water: H2 + 0.5O2 -> H2O. In this equation, the molar or stoichiometric ratio of hydrogen (H2) to oxygen (O2) to water (H2O) is 2:1:2. If we are given the number of moles of one substance, we can use this molar ratio to find the number of moles of any other substance in the equation, without needing to know their molar masses. This constitutes a stoichiometric calculation without the need for molar mass.
Learn more about Stoichiometric Calculations here:
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Answers
Answer:
D. association with bacterial species.
Explanation:
Methanogens -
These are the organisms , that falls under the category of the prokaryotes , in the domain archaea .
Methanogens are a type of microorganism , which is capable to produce methane as one of the by product during a hypoxic condition .
These organisms are found in the wetland , inside the digestive system of the humans and animals .
They have an important space for the treatment of the anaerobic wastewater .
Hence , from the question ,
The correct option is d.
Answers
The answer is
OSHA standards appear in the Code of Federal Regulations (CFR) and was then broken down into two parts.
The explanation:
OSHA standards are rules that describe the methods that employers must use to protect their employees from hazards. There are OSHA standards for Construction work, Maritime operations, and General Industry, which is the set that applies to most worksites. These standards limit the amount of hazardous chemicals workers can be exposed to, require the use of certain safe practices and equipment, and require employers to monitor hazards and keep records of workplace injuries and illnesses
It contains standards to ensure a comfortable and high quality research tools like the databases. These standards are to be strictly monitored to ensure the safety of workers.
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