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4vir4ik [10]
3 years ago
10

If two forces are heading in the same direction, we ______ them to calculate net force.

Chemistry
1 answer:
steposvetlana [31]3 years ago
5 0

Answer:

add

Explanation:

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a stone is found to have a volume of 34.9cm3. it has a mass of 30.8g. what is the density of the stone
FromTheMoon [43]

Answer:

Explanation:

ρ =  

m

V

=  

30.8 gram

34.9 cubic meter

=  0.88252148997135 gram/cubic meter

=  0.00088252148997135 kilogram/cubic meter

3 0
4 years ago
Minerals in geodes form spectacular euhedral crystals because ________. A. all of the elements incorporated in the crystals are
11111nata11111 [884]

Answer:

C. minerals within geodes are always framework silicates

Explanation:

This is true going by the facts that, it is only the silicates that can be able to form crystals as obtainable in diamonds etc. Since the minerals in geodes are in the framework of silicates families, they can be able to form euhedral crystals.

4 0
3 years ago
How many grams of water are produced from the combustion of 45.2 g of
Zina [86]

Answer:

101.56 of H₂O

Explanation:

The balanced equation for the reaction is given below:

CH₄ + 2O₂ —> CO₂ + 2H₂O

Next, we shall determine the mass of CH₄ that reacted and the mass of H₂O produced from the balanced equation. This is illustrated below:

Molar mass of CH₄ = 12 + (4×1.01)

= 12 + 4.04

= 16.04 g/mol

Mass of CH₄ from the balanced equation = 1 × 16.04 = 16.04 g

Molar mass of H₂O = (2×1.01) + 16

= 2.02 + 16

= 18.02 g/mol

Mass of H₂O from the balanced equation = 2 × 18.02 = 36.04g

SUMMARY:

From the balanced equation above,

16.04 g of CH₄ reacted to produce 36.04 g of H₂O.

Finally, we shall determine the mass of water, H₂O produced by the reaction of 45.2 g of methane, CH₄. This can be obtained as illustrated below:

From the balanced equation above,

16.04 g of CH₄ reacted to produce 36.04 g of H₂O.

Therefore 45.2 g of CH₄ will react to produce = (45.2 × 36.04)/16.04 = 101.56 g of H₂O.

Thus, 101.56 of H₂O were obtained.

7 0
3 years ago
infrared and raman spectra of magnesium ammonium phosphate hexahydrate ( struvite ) and its isomorphous analogues . i . spectra
kodGreya [7K]

Magnesium potassium phosphate hexahydrate and a number of its deuterated counterparts were studied for their Fourier transform infrared and Raman spectra. By contrasting the spectra obtained at the boiling point of liquid nitrogen with those obtained at ambient temperature and by examining the spectra of a succession of partially deuterated MgKPO4

<h3>What is Infrared and raman spectroscopy ?</h3>

Raman and infrared spectroscopy both investigate how radiation interacts with molecular vibrations, but they do so in different ways depending on how the photon energy is delivered to the molecule by altering its vibrational state.

  • While IR spectroscopy depends on a change in the dipole moment, Raman spectroscopy depends on a change in the polarizability of a molecule. In contrast to IR spectroscopy, which measures the absolute frequencies at which a sample absorbs light, Raman spectroscopy measures the relative frequencies at which a sample scatters light.

Learn more about Spectroscopy here

brainly.com/question/17036549

#SPJ4

8 0
2 years ago
Is it possible for a solution to have negative pH values?
aleksandr82 [10.1K]

Answer:

Yes.

Explanation:

4 0
3 years ago
Read 2 more answers
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