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nydimaria [60]
3 years ago
11

A geology student found an irregularly shaped rock, with a mass of 28.63 grams, and placed it into a graduated cylinder with a v

olume of 13.31 mL water. If the water level increased to 19.73 mL after the rock was placed in, what is the density of the rock, in g/mL?
Chemistry
1 answer:
White raven [17]3 years ago
8 0
Dnsnene jsjsjs Shane jdjsjs ksjsjs iDisks isjs
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Please help me im stuck on this!!
lisov135 [29]
The answer is decomposition
6 0
3 years ago
Read 2 more answers
An ideal gas at constant temperature is confined in an airtight cylinder, and a piston pushes down on the gas in the cylinder. a
FrozenT [24]
Pushing down a piston in an airtight cylinder would tend to increase the pressure in the system since the particle collision and collisions with the walls are now more frequent. Also, pushing further, the gas would undergo a phase change from gas to a liquid.
3 0
3 years ago
What can be formed by atoms of same element (H) or atoms of different 20 points<br> elements (CO)? *
NARA [144]

Answer:

Molecules

Explanation:

If you had more than one atom chemically bonded together, then regardless of the types of atoms that are bonded, you're going to have a molecule regardless.

4 0
3 years ago
Given 5.0 grams of lead (II) nitrate and 3.0
natulia [17]

Answer:

                     1.70 g of NaNO₃

Explanation:

                     The balance chemical equation for given double displacement reaction is,

                               Pb(NO₃)₂ + 2 NaI → PbI₂ + 2 NaNO₃

Step 1: <u>Calculate moles of each reactant:</u>

                                   Moles =  Mass / M.Mass

For Pb(NO₃)₂:

                                   Moles =  5.0 g / 331.21 g/mol

                                   Moles =  0.0150 moles

For NaI:

                                   Moles =  3.0 g / 149.89 g/mol

                                   Moles =  0.020 moles

Step 2: <u>Calculate Limiting reagent as;</u>

According to equation,

                     1 mole of Pb(NO₃)₂ reacts with  =  2 moles of NaI

So,

              0.0150 moles of Pb(NO₃)₂ will react with  =  X moles of NaI

Solving for X,

                     X =  2 mol × 0.0150 mol / 1 mol

                     X =  0.030 moles of NaI

Hence, it means that NaI is the limiting reagent therefore, it will control the yield of Sodium Nitrate.

Step 3: <u>Find out moles of NaNO₃ formed:</u>

According to equation,

                     2 mole of NaI produced =  2 moles of NaNO₃

So,

              0.020 moles of NaI will produce   =  X moles of NaNO₃

Solving for X,

                     X =  2 mol × 0.020 mol / 2 mol

                     X =  0.020 moles of NaNO₃

Step 4: <u>Calculate Mass of NaNO₃ produced;</u>

As,                Moles  =  Mass / M.Mass

Or,

                    Mass  =  Moles × M.Mass

Putting values,

                    Mass  =  0.020 mol × 84.99 g/mol

                    Mass  =  1.70 g of NaNO₃

7 0
3 years ago
How many grams of oxygen are in 50.00 g of sucrose? Show your work
Marta_Voda [28]
Just find the percent mass of oxygen in sucrose again. and then multiply that by 50.00.
3 0
2 years ago
Read 2 more answers
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