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babunello [35]
2 years ago
11

What is the basic unit of structure and function in all living things? a cell b organism c atom d plasma

Chemistry
1 answer:
valkas [14]2 years ago
4 0

Answer:

A. Cell

Explanation:

Cells are basic units of structure and function in living things. This means that cells form the parts or an organism and carry out all of the an organism's processes, or functions.

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Write 10,847,100 in Scientific Notation with 4 significant figures.
masha68 [24]

Answer:

The number 10,847,100 in Scientific Notation is 1.0847x10^{7}

Explanation:

Scientific notation is an easy form to write long numbers and it is commonly used in the scientific field. To write a long number in a shorter way it is necessary to 'move' the decimal point to the left the number of positions that are necessary until you get a unit. Then you write the number and multiplied it by 10 raised to the number of positions you moved the decimal point. In this case, it is necessary to move the decimal point 7 positions so, we multiply the number by 10 raised to 7.

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3 years ago
2. What happens to the volume of a balloon when it is taken outside on a cold winter<br> day? Why?
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methane is a flammable compound made of carbon and hydrogen atoms. how could you seperate the carbon and hydrogen in methane
sergiy2304 [10]
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Which term defines an acid?
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Read 2 more answers
How many grams of sodium (na ) would be needed to create a 100 millimole concentration in one liter?
Rina8888 [55]

2.3g of sodium would be needed to create a 100 millimole concentration in one liter.

Given,

Mole of Na+ = 100 millimole

As we know that,

1 millimole = 10 -³ mole

Mole of Na+ in 100 millimoles = 100 × 10 -³ mole

= 0.1mole

<h3>What is Mole? </h3>

Mole is defined as the ratio of mass of Na+ to the molar mass of sodium.

<h3>What is Molar Mass? </h3>

The molar mass is defined as the sum of the total mass in grams unit of the atoms present to make a molecule per mole.

Mole of Na+ = mass of Na + / molar mass of Na +

0.1 = mass of Na + / 22.99 gl mol

Mass of Na + = 0.1 × 22.99

= 2.299 g

Mass of Na + = 2.3 g

Thus, we calculated that 2.3g of sodium would be needed to create a 100 millimole concentration in one liter.

learn more about moles:

brainly.com/question/15209553

#SPJ4

7 0
1 year ago
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