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Snowcat [4.5K]
3 years ago
14

What happens to reactants when a chemical reaction takes place?

Physics
2 answers:
Artyom0805 [142]3 years ago
6 0

Answer:

reactants will decrease in amount

Explanation:

because reactants convert into products in a chemical reaction

yanalaym [24]3 years ago
5 0

Answer:

they collide with one another

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Three forces with magnitudes of 95 pounds, 75 pounds, and 146 pounds act on an object at angles 100°, 200°, and 300°, respective
VladimirAG [237]

Answer:

Explanation:

We shall represent all the forces in vector form .

Force of 95 pounds

F₁ = 95cos100 i + 95sin100j

= -16.5 i +93.55 j

force of 75 pounds

F₂ = 75cos200 + 75sin200j

= -70.47 i - 25.65 j

force of 146 pounds

F₃ = 146cos300 i + 146sin300j

= 73i -126.44 j

Resultant force

R = F₁+ F₂ + F₃

=  -16.5 i +93.55 j  -70.47 i - 25.65 j +73i -126.44 j

= -13.97 i - 58.54 j

Magnitude of R = √ ( 13.97² + 58.54² )

= 60.18

If Ф be angle of resultant with  axis

tanФ = - 58.54 / -13.97

Ф = 76.57 + 180 = 256.57 , because both  x and y components are negative. So the resultant will be in third quadrant.

7 0
3 years ago
We now slowly increase the pressure to 15464.04 Pa while keeping the temperature constant. What is the final volume?
Mila [183]

Answer:

Final volume = 0.42 cubic meters

Explanation:

The question is incomplete. The initial conditions are

Initial temperature ,T_{1} = 310 K

Initial volume ,V_{1} = 0.5 cubic meter

Number of moles = 2.5

Since, from the ideal gas equation we get,

PV = nRT

P \times 0.5 = 2.5 \times 8.314 \times 310

P_{1} = 12886.7 Pa

Final pressure= 15464.04 Pa

Since temperature is constant,

PV = constant

12886.7 \times 0.5 = 15464.04 \times V

V = 0.42 cubic meters.

Hence final volume = 0.42 cubic meters

8 0
3 years ago
Do it in order. <br> from smallest to largest
Sholpan [36]

Answer:

The earth, The sun, the solar system and the milky way.

7 0
3 years ago
I NEED help<br><br> A brief explanation on how TV uses radio waves.
Ipatiy [6.2K]
Radio waves<span> have lower frequencies and longer wavelengths than microwaves. They are used to transmit </span>television<span> and </span>radio<span> programmes.</span>Television uses<span> higher frequencies than </span>radio. A radio<span> programme receiver does not need to be directly in view of the transmitter to receive programme </span>signals<span>.</span>
6 0
4 years ago
In the presence of a nucleus the energy of a y-ray photon can be converted into an electron-positron pair. Calculate the minimum
Vlada [557]

Answer:

Explanation:

mass of electron in amu = .000549

mass of electron = mass of proton

total mass of electron and proton = 2 x1.098 x 10⁻³ = 2.196 x 10⁻³ amu

1 amu = 931 x 10⁶ eV

2.196 X 10⁻³ amu = 2.196 x 931 x 10³ eV

= 2.044 X 10⁶ eV.

= 2044 X 10³ ev

So minimum energy required = 2044 x 10³ eV.

Wavelength of photon required = 12375/2044 x 10³ A

= 6.054 X 10⁻³A. =6.054 X 10⁻¹³ m

frequency of photon  = 3 x 10⁸/6.054x 10⁻¹³

= .4955 x 10¹⁶Hz.

= 4.955 x 10¹⁵ Hz

3 0
4 years ago
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