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fenix001 [56]
3 years ago
13

39 which statement about the process of dissolving is TRUE

Chemistry
1 answer:
xz_007 [3.2K]3 years ago
6 0
C !!!!!!!!!!!!!!!!!!!!!!
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3. When 10.0 g of a pure compound was analyzed, it was found to contain 3.65 g of K, 3.33 g of CI,
vampirchik [111]
Convert all the grams to moles first.

K - 3.65 g / 39.1 g/mol = 0.0934 mol
Cl - 3.33 g / 35.45 g/mol = 0.0939 mol
O - 3.02 g / 16 g/mol = 0.189 mol

Divide them all by the smallest number of moles (0.0934 moles of K) to get whole numbers.

K - 0.0934/0.0934 = 1
Cl - 0.0939/0.0934 ≈ 1
O - 0.189/0.0934 ≈ 2

KClO2
5 0
3 years ago
¿Por qué el volcán causa una explosión?
never [62]
Why does the volcano cause an explosion?
4 0
3 years ago
The density of copper is 8.92 g/cm^3. If you plotted the mass of copper in grams versus the volume in cubic centimeters, what wo
dybincka [34]

The slope would be 8.92g/cm^3.

<em>D = m/V</em>

<em>m = DV </em>

The equation for a straight line is

<em>y</em> = m<em>x</em> +b, where m is the slope and b is the y-intercept. We have

<em>m</em> = D<em>V</em> + 0

Thus, a plot of <em>m</em> vs <em>V</em> will give a straight line with a slope of <em>D</em> and a

<em>y</em>-intercept at the origin.

Slope = <em>D</em> = 8.92g/cm^3

3 0
3 years ago
Compare the densities among the three states of matter (which is highest,lowest?)
vekshin1
Solid, liquid, and gas is the order 

so solid is the highest, liquid is the middle, and gas is the lowest
5 0
3 years ago
If ine mole of pennies were divided amung 250 million peoplein
Airida [17]

Answer:

2.4088\times 10^{13} dollars each person will receive.

Explanation:

Number of people in which 1 mole of pennies is distributed = 250 million =

1 million = 10^6

250 million = 2.5\times 10^8 persons

Number of pennies in 1 mole = 6.022\times 10^{23}

Pennies per person:

\frac{6.022\times 10^{23} pennies}{2.5\times 10^8 persons}=2.4088\times 10^{15} pennies/person

1 penny = 0.01 $

2.4088\times 10^{15} pennies/person=2.4088\times 10^{15}\times 0.01 \$/person=2.4088\times 10^{13} \$/person

2.4088\times 10^{13} dollars each person will receive.

7 0
3 years ago
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