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Nikitich [7]
3 years ago
15

Hi question, what number should I change the 9 to so it's balanced?

Chemistry
1 answer:
Delicious77 [7]3 years ago
6 0

Answer:

3

Explanation:

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16.25 cm = how many feet
d1i1m1o1n [39]
0.53313648 feet = 16.25cm

6 0
4 years ago
Light can travel through outer space from the Sun to the Earth. This shows that
Pavlova-9 [17]

Answer:

that light is on the electromagnetic spectrum

Explanation:

this is because In physics, the term light sometimes refers to electromagnetic radiation of any wavelength, whether visible or not. In this sense, gamma rays, X-rays, microwaves and radio waves are also light. Like all types of EM radiation, visible light propagates as waves. However, the energy imparted by the waves is absorbed at single locations the way particles are absorbed. The absorbed energy of the EM waves is called a photon, and represents the quanta of light.

6 0
3 years ago
Read 2 more answers
The output of a plant is 4335 pounds of ball bearings per week (5days) if each ball weighs .0113 g how many ball bearings does t
AfilCa [17]

The plant makes 3.50 × 10⁷ bearings per day

<em>Pounds of bearings</em> = 1 da × (4355 lb bearings/5 da) = 871.0 lb bearings

<em>Grams of bearings</em> = 871.0 lb bearings × (453.6 g bearings/1 lb bearings)

= 3.951 × 10⁵ g bearings

<em>No. of bearings</em> = 3.951 × 10⁵ g bearings × (1 bearing/0.0113 g bearing)

= 3.50 × 10⁷ bearings

5 0
3 years ago
Determine the approximate density of a Ti-6Al-4V titanium alloy that has a composition of 90 wt% Ti, 6 wt% Al, and 4 wt% V. [Hin
Kamila [148]

Answer:

ρ = 4407.03 kg/m³

Explanation:

The Density of a metal alloy is given by the following equation:

1/ρ = m₁/ρ₁ + m₂/ρ₂ + m₃/ρ₃

where,

ρ = density of allow = ?

ρ₁ = density of Titanium (Ti) = 4540 kg/m³

ρ₂ = density of Aluminum (Al) = 2710 kg/m³

ρ₃ = density of Vanadium (V) = 6110 kg/m³

m₁ = mass fraction of Titanium (Ti) = 90% = 0.9

m₂ = mass fraction of Aluminum (Ti) = 6% = 0.06

m₁ = mass fraction of Vanadium (V) = 4% = 0.04

Therefore,

1/ρ = 0.9/(4540 kg/m³) + (0.06)/(2710 kg/m³) + (0.04)/(6110 kg/m³)

1/ρ = 1.9823 x 10⁺⁴ m³/kg + 0.2214 x 10⁻⁴ m³/kg + 0.0654 x 10⁻⁴ m³/kg

1/ρ =  2.2691 x 10⁻⁴ m³/kg

ρ = 1/(2.2691 x 10⁻⁴ m³/kg)

<u>ρ = 4407.03 kg/m³</u>

5 0
3 years ago
The combustion of ethanol ( C 2 H 6 O) produces
Mrrafil [7]

Explanation:

The combustion of ethanol is best represented by the equation below:

                C₂H₅OH + 3O₂   →   2CO₂   +   3H₂O    +   heat

Combustion process is very common among hydrocarbons.

Ethanol is an alcohol and in the presence of oxygen it will combust.

In combustion heat energy is always released into the environment.

     C₂H₅OH + 3O₂   →   2CO₂   +   3H₂O    +   heat

We see that ethanol combines with oxygen to give carbon dioxide and water in the reaction above.

The heat produced signifies that the reaction is exothermic in nature.

learn more:

Combustion brainly.com/question/11200282

#learnwithBrainly

3 0
3 years ago
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