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djverab [1.8K]
3 years ago
12

Why is it important to analyze data?

Chemistry
1 answer:
gayaneshka [121]3 years ago
7 0

Answer:

It is important to analyze data to further understand what's going on. By analyzing data, you know more about what you are investigating. Without analyzing data, you may find it harder to figure something.

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The molal boiling-point and freezing-point constants are different for different solvents.
RoseWind [281]

Answer:

I think the answer is true, sorry if I am wrong

Explanation:

8 0
3 years ago
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PLS HELP QUICK ALOTTT OF POINTS
timofeeve [1]

Answer:

\boxed {\boxed {\sf 0.80 \ mol\ F}}

Explanation:

We are asked to find how many moles are in 4.8 × 10²³ fluorine atoms. We convert atoms to moles using Avogadro's Number or 6.022 × 10²³. This is the number of particles (atoms, molecules, formula units, etc.) in 1 mole of a substance. In this case, the particles are atoms of fluorine.

We will convert using dimensional analysis and set up a ratio using Avogadro's Number.

\frac {6.022 \times 10^{23} \ atoms \ F}{ 1 \ mol \ F}

We are converting 4.8 × 10²³ fluorine atoms to moles, so we multiply the ratio by this number.

4.8 \times 10^{23} \ atoms \ F *\frac {6.022 \times 10^{23} \ atoms \ F}{ 1 \ mol \ F}

Flip the ratio so the units of atoms of fluorine cancel each other out.

4.8 \times 10^{23} \ atoms \ F *\frac { 1 \ mol \ F}{6.022 \times 10^{23} \ atoms \ F}

4.8 \times 10^{23}  *\frac { 1 \ mol \ F}{6.022 \times 10^{23} }

Condense into 1 fraction.

\frac { 4.8 \times 10^{23} }{6.022 \times 10^{23} } \ mol \ F

Divide.

0.7970773829 \ mol \ F

The original measurement of atoms has 2 significant figures, so our answer must have the same. For the number we found, that is the hundredths place. The 7 in the thousandths tells us to round the 9 in the hundredths place up to a 0. Then, we also have to round the 7 in the tenths place up to an 8.

0.80 \ mol \ F

4.8 × 10²³ fluorine atoms are equal to <u>0.80 moles of fluorine.</u>

6 0
3 years ago
Identify each of the atomic models described here. Atoms are indivisible spheres. plum pudding model Dalton model Bohr model
mamaluj [8]

Atoms are indivisible spheres-Dalton model

John Dalton was the first to propose a theory to describe matter. As per Dalton's model, all matter is composed of atoms which resemble tiny 'ball-like' structures that are indivisible.

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3 years ago
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Calculate the mass of magnesium oxide formed when 3.0 grams of magnesium reacts with excess oxygen.
BlackZzzverrR [31]
Mg+O2=MgO
24 g. = 40 g
3 g. = x
x =  \frac{3 \times 40}{24}  \\ x = 5 \: g
3 0
3 years ago
A piston in a heat engine does 500 joules of work, and 1,400 joules of heat are added to the system. Determine the change in int
Ira Lisetskai [31]
The change is that the piston gets hotter? (Theres more heat in it)
8 0
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