Which substance represents a compound?(1) C(s) (3) CO(g)(2) Co(s) (4) O2(g)
Answers
The substance that represents a compound among the given options is CO. The correct answer is (3) CO(g)
From the question,
We are to determine which of the given substances is a compound.
First, we will define a compound
A compound is a chemical species that is formed when two or more atoms join together chemically, with covalent or ionic bonds.
OR
A compound is a substance that contains atoms of two or more different elements, and these atoms are chemically joined together
NOTE: A molecule consisting of atoms of only one element is NOT a compound.
Among the given options, only CO satisfies the definition of a compound, because it contains two different elements, Carbon (C) and Oxygen (O).
Hence, the substance that represents a compound among the given options is CO. The correct answer is (3) CO(g)
Learn more here: brainly.com/question/12862037
CO = Carbon Monoxide
Co = Cobalt
O2 = Oxygen
So the answer is (3) CO
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Carbonic acid dissolves limestone and other rocks. this is an example of _____. acid erosion chemical weathering biological weathering chemical erosion
seawater contains % (by mass) of potassium. how many grams of potassium are there in 2.86 l of seawater? the density of seawater is 1.025 .
In what parts of your daily life might you need to calculate the percentage composition of something?
A. The FDA is the only organization that can test if health actually improves.
B. Tests that are performed by any company which benefits financially are considered unreliable.
C. The FDA tests give reliability to the results of improved health obtained by each company.
D. Tests performed by the FDA follow established scientific methods, but those performed by companies do not.
Answers
Answer is: C. The FDA tests give reliability to the results of improved health obtained by each company.
The FDA (The Food and Drug Administration) is a federal agency of the United States Department of Health and Human Services.
The FDA controls food safety, tobacco products, dietary supplements, prescription, pharmaceutical drugs, vaccines, biopharmaceuticals, blood transfusions, medical devices, electromagnetic radiation emitting devices, cosmetics and animal food.
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petroleum based is materiel's that contains different kinds of oil and fuel. "which are used in chemical processes to produce plastics".
Answers
Answer:
Explanation:
Hello,
In this case, chlorine's percent composition is given by the shown below formula:
Whereas accounts for the number of chlorine atoms into the NaCl,
for chlorine's atomic mass and
for sodium chloride's molar mass, therefore, the percent composition of chlorine turns out:
Best regards.
b. hydrogen bonding
c. chemical reaction
d. dissolving
Answers
The process that changes one set of chemicals into another set of chemicals is called a chemical reaction. The correct answer is option c.
A chemical reaction is a process in which chemical bonds between atoms and molecules are broken and formed, resulting in the creation of new substances with distinct chemical properties.
In a chemical reaction, the reactants are the starting substances that react with each other, while the products are the new substances that are formed.
For example: When hydrogen gas reacts with oxygen gas in the presence of a spark or flame, a chemical reaction occurs that produces water as a product:
Therefore, a chemical reaction is the process of transforming one set of chemicals into another set of chemicals. Option c is the correct answer.
Learn more about chemical reaction here:
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Cohesion would be the process that changes one set of chemicals into another set of chemicals, as the reactants bond to bring the product, aka product(s).
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The chemical processing breaks…. corn starch,a disaccharide characterized… to sucrose,a simple, six-carbon cycloalkane…corn syrup,a homopoloymer of glucose is corn starch, chemical processing of corn syrup… high fructose corn syrup.
What is glucose ?
A basic sugar, glucose has the chemical formula C6H12O6. The most prevalent monosaccharide, a type of carbohydrate, is glucose.
The primary form of sugar in the blood, glucose serves as the body's cells' main source of energy. Glucose can be produced by the body from other chemicals, or it can be obtained from the meals we eat. The bloodstream carries glucose to the cells. Insulin is one of many hormones that regulate blood glucose levels.
The brain is the most energy-hungry organ in the body and uses half of the body's sugar energy due to its abundance of nerve cells, or neurons. Thinking, memory, and learning are all tightly correlated with blood glucose levels and how effectively the brain uses this substance.
Thus, a homopoloymer of glucose is corn starch.
To learn more about glucose, follow the link;
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Sucrose, a sweet, white crystalline substance, C12 H22 O11, OBTAINED CHIEFLY FROM THE JUICE OF THE SUGAR CANE AND SUGAR BEET, BUT ALSO PRESENT IN SORGHUM, THE sugar maple, some palms, and various other plants, and having extensive nutritional, pharmaceutical, and industrial uses; any of the class of carbohydrates to which this substance belongs, as glucose, levulose, and lactose.
Answers
P=?
We know that:
-V=1L
-R=8.314kPa•L/mol•K
-T=10°C (we need to converse °C in K so 10+273) =283K
For n, we know that we have 64g of O2 and were looking for the quantity of mole in these 64g. 1 mole of O2 is 15.999g so 64g would be 4.0mol ((64g • 1mol)/15.999g) so n=4.0
P•1L= 4.0mol • 8.314kPa•L/mol•K • 283K
P • 1L = 9411
P = 9411/1L
P = 9411kPa