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natulia [17]
3 years ago
7

Describe one technology used to travel to space and one technology used to return from space

Chemistry
1 answer:
marysya [2.9K]3 years ago
8 0
<span>technology includes spacecraft, satellites, space stations, and support infrastructure, equipment, etc..</span>
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You are trying to determine the volume of the balloon needed to match the density of the air in the lab. You know that if you ca
asambeis [7]
Answer is: <span>volume of balloon is </span>476,85 cm³.
density of air: d(air) = -0,0043 · 18,0°C + 1,2874.
d(air) = 1,21 kg/m³ = 1,21 · 10³/ 10⁶ = 0,00121 g/cm³.
m(balloon) = 0,577 g.
d(balloon) = d(air).
d(balloon) = m(balloon) ÷ V(balloon).
V(balloon) = m(balloon) ÷ d(balloon)
V(balloon) = 0,577 g ÷ 0,00121 g/cm³.
V(balloon) = 476,85 cm³.
8 0
3 years ago
What is the deference between dalton theory and modern atomic theory​
Fiesta28 [93]

Answer:

Dalton's says atoms of different elements differ in size and mass, whereas the modern theory says they differ in average mass. Dalton's says atoms are individual particles, whereas the modern theory says atoms are divisible into subatomic particles like protons, neutrons, and electrons..

Explanation:

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3 0
3 years ago
Polymerization starts at the ________ end of the template.
balandron [24]

Answer:

B.  3'

Explanation:

Polymerization is the process of forming large molecules by joining together many small molecules. The small molecules are known as the monomers, and the macromolecules are called polymers.

There are two(2) types of polymerization.

a. addition polymerization

b. condensation polymerization

Polymerization is characterized by eliminating small molecules such as water, carbon(IV)oxide, methanol e.t.c.

In complex compounds, polymerization starts at the 3' end of the template.

3 0
3 years ago
When do electrons release photons​
Inessa05 [86]

Answer:

Later when they are older

Explanation:

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3 0
3 years ago
If you want to prepare 80.0 mL of 4.00M acid ,How many mL of 12.4 M HCl are required ?
Oksi-84 [34.3K]

M_{A}V_{A}=M_{B}V_{B}\\(80.0)(4.00)=V_{B}(12.4)\\V_{B}=\frac{(80.0)(4.00)}{12.4} \approx \boxed{25.8 \text{ mL}}

5 0
2 years ago
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