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anyanavicka [17]
4 years ago
12

A __________ predicts overall natural events in general terms, while a __________ is a very specific prediction based on one cir

cumstance. A) law; theory B) law; hypothesis C) theory; hypothesis D) hypothesis; theory
Chemistry
2 answers:
svet-max [94.6K]4 years ago
6 0

Answer:

A

Explanation:

dexar [7]4 years ago
5 0

A Law predicts overall natural events in general terms, while a Theory is a very specific prediction based on one circumstance

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One of the essential minerals in the human body is salt. How much salt (NaCl) is in the average adult human body?
nlexa [21]
No! If it was 12% a 150 pound person would be about 18 pounds of salt!

~0.4%
The average 150lb person would contain ~280 g of NaCl.
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3 years ago
In what area of the united states do the fewest people live​
fiasKO [112]

Answer:

The most populous state in the United States is California, which has 37,253,956 inhabitants. On the other hand, the least populated state is Wyoming with 493,782 inhabitants.

6 0
3 years ago
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An element belongs to group 17 of the periodic table. This element is most likely a ____. A solid of this element would have a _
storchak [24]

Answer:

An element that belongs to group 17 of the periodic table is a halogen, and will have physical and chemical characteristics like that of nonmetals.

Explanation:

Halogens are nonmetals, and include five elements:  fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). They are all nonmetals, and are quite toxic.  

Halogens become darker as you go down the group. Fluorine is a very pale yellow, while bromine is red-brown. Halogens have relatively low melting and boiling points as well.

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3 years ago
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A solution is prepared at that is initially in nitrous acid , a weak acid with , and in sodium nitrite . Calculate the pH of the
bija089 [108]

Answer:

4.07

Explanation:

There is some info missing. I think this is the original question.

<em>A solution is prepared at 25 °C that is initially 0.057 M in nitrous acid (HNO₂), a weak acid with Ka = 4.5 × 10⁻⁴, and 0.30 M in sodium nitrite (NaNO₂). Calculate the pH of the solution. Round your answer to 2 decimal places.</em>

<em />

Nitrous acid is a weak acid and nitrite (coming from sodium nitrite) is its  conjugate base. Together, the form a buffer system. We can calculate its pH using the Henderson-Hasselbach equation.

pH = pKa + log [base]/[acid]

pH = -log 4.5 × 10⁻⁴ + log 0.30/0.057

pH = 4.07

7 0
3 years ago
What is the volume of a cone with a height of 27 cm
andreev551 [17]

Answer:

the answer is 4778.36

Explanation:

do pi time the radius squared times the height divided by 3

5 0
3 years ago
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