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Genrish500 [490]

2 years ago

5

Which of the following best describes an atom? * the smallest unit of living things only the smallest unit of an element the sma

llest unit of nonliving things only the smallest unit of a compound

1 answer:

Maurinko [17]2 years ago

5 0

The smallest unit of element

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18 divided by 6 is 3

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The ion with a +3 charge 28 electrons and mass number of 71

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A naturally occurring element consists of three isotopes. The data for the isotopes are:

max2010maxim [7]

(46.972* 69.472% + 48.961*21.667% + <span>49.954*8.8610%)/100% =

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2 years ago

Câu 1: Trong phân tử este (X) no, đơn chức, mạch hở có thành phần oxi chiếm 36,36 % khối lượng. Số đồng phân bố

enyata [817]

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2 years ago

650. J is the same amount of energy as A. 155 cal. B. 2720 calC. 650 cal.D. 1550 cal.

sladkih [1.3K]

Answer:

$A\text{ : 155 cal}$

Explanation:

Here, we want to convert J to cal

Mathematically:

$1\text{ cal = 4.186 J}$

Thus, to get our answer in cal, we divide the value given by 4.186

We have that as:

$\frac{650}{4.186}\text{ = 155 cal}$

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1 year ago