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3 years ago

Explain the relationship between cell, tissue and organs.

Chemistry

2 answers:

kobusy [5.1K]3 years ago

7 0

Answer:

The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs.

Pie3 years ago

3 0

Answer:

Cells are the basic units of living things. Tissues are groups of similar cells that are structurally combined to act together to perform a function or provide a structure. Like a muscle. Organs are more complex structures, usually composed of multiple tissue types, that perform complex functions.

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Why are the elements on the periodic table not arranged by mass?

Aleksandr-060686 [28]

Answer:

A. Similar elements have such different masses that this would lead to a completely random arrangement of elements.

Explanation:

Because it is the number of protons, which is identical to the atomic number, that separates different elements from each other, not the atomic mass.

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3 years ago

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Answer:

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3 years ago

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A nonmetallic element x forms an ionic compound with sodium that has the formula na2x. the charge on the x ion must be

hichkok12 [17]

The charge is 2- (2 minus). This is because sodium ion has a charge of 1+ and 2 of them are there in the compound. Thus the charge is 2-

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4 years ago

When do scientist rely on estimates

Brut [27]

Scientist rely on their estimates when they cannot obtain on exact numbers

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3 years ago

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How many atoms are present in 98.1 grams of Ar? You may report your numerical answer in scientific notation use e-notation.

Andrei [34K]

Answer:

1.48 × 10²⁴ atoms

Explanation:

Step 1: Calculate the moles of argon

Argon is a noble gas, whose molar mass is 39.95 g/mol. We will use this data to find the moles corresponding to 98.1 grams of argon.

$98.1g \times \frac{1mol}{39.95g} =2.46 mol$

Step 2: Calculate the atoms of argon

In order to calculate the number of atoms of argon in 2.46 moles of argon, we have to consider the Avogadro's number: there are 6.02 × 10²³ atoms of Ar in 1 mole of Ar.

$2.46mol \times \frac{6.02 \times 10^{23}atoms }{1mol} = 1.48 \times 10^{24}atoms$

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3 years ago