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AleksAgata [21]
3 years ago
9

A substance is composed of only one kind of Adam and can't be separated into simpler substances are converted into it another su

bstance by chemical processes
Chemistry
1 answer:
Zarrin [17]3 years ago
3 0

Answer:

Element

Explanation:

An element is substance that is composed of only one kind of atom and can not be separated into simpler substances or converted into another substance by chemical processes.

Chemical elements are found in the periodic table. Examples of chemical elements include; sodium potassium, phosphorus, hydrogen etc.

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Convert the following with the correct number of significant figures:
larisa [96]

Answer:

1.78 × 10⁹ μg

Explanation:

We have to convert 1.78 kg to μg.

Step 1: Convert 1.78 kilograms to grams

We will use the conversion factor 1 kg = 10³ g.

1.78 kg × 10³ g/1 kg = 1.78 × 10³ g

Step 2: Convert 1.78 × 10³ grams to micrograms

We will use the conversion factor 1 g = 10⁶ μg.

1.78 × 10³ g × 10⁶ μg/1 g = 1.78 × 10⁹ μg

8 0
2 years ago
What is “monomer” mean?
oksano4ka [1.4K]

it is a molecule* that can be joined with other molecules that are identical to form a polymer*

key words :

a molecule:

a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

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a substance that has a molecular structure consisting chiefly or entirely of a large number of similar units bonded together

hope this helped, good luck in future studies !

-A

5 0
3 years ago
A student places a 12-gram cube of ice inside a container. After six hours, the student returns to observe the contents of the c
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Answer:

The answer is c

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Because all of the Other ones did not make sense

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if you measure the mass of a model car to be 230 grams. the actual mass is 218 grams. what is your percent error.
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