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labwork [276]
2 years ago
14

What percent composition of phosphorus in Zn3(PO4)2? This means to find the percent composition of each

Chemistry
1 answer:
Korvikt [17]2 years ago
3 0

Answer: Zn 50.803%

Oxygen O 33.152%

Phosphorus P 16.045%

Explanation:

You might be interested in
Which is correct if 15,390,000 is rounded to two significant figures?
BARSIC [14]

Answer:

Explanation:

Remark

This is one of those questions that you need the choices. You can't tell what you should enter. For example, in scientific notation, you would get 1.5*10^7.

Or you could keep it as an integer and round to two places 150,000,000,

I would pick scientific notation if you know how to use it. Otherwise use the interger format.

7 0
2 years ago
A cube has a mass of 42 grams and a volume of 15 cubic centimeters. What is it’s density?
deff fn [24]

Answer:

2.8g/cm³

Explanation:

Given parameters:

Mass of cube = 42g

Volume of cube  = 15cm³

Unknown:

Density of the cube  = ?

Solution:

Density is defined as the mass per unit volume of a substance. It is mathematically expressed as:

 Density  = \frac{mass}{volume}  

So;

 Density  = \frac{42}{15}   = 2.8g/cm³

6 0
3 years ago
Convert 321 millimeters to picometers
pantera1 [17]
3.21e+11 is your answer for 321 millimeters in picometers. Hope this helps!

3 0
3 years ago
If Iron (Fe) gained a proton what would it be?
Mkey [24]
If iron (Fe) gained a proton it would become cobalt (CO).
8 0
2 years ago
A) What mass in grams of H20 is needed to react completely with 40.0 g of
Step2247 [10]

Answer:

m_{H_2O}=9.24gH_2O

Explanation:

Hello there!

In this case, since there is a 2:2 mole ratio between sodium peroxide and water according to the given reaction, it is possible to apply the following stoichiometric setup for the calculation of the required mass of water:

m_{H_2O}=40.0gNa_O_2*\frac{1molNa_O_2}{78gNa_O_2}*\frac{2molH_2O}{2molNa_O_2}  *\frac{18.02gH_2O}{1molH_2O} \\\\m_{H_2O}=9.24gH_2O

Best regards!

7 0
3 years ago
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