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3 years ago

The Germans were the first to send up a satellite into space.

Chemistry

2 answers:

vladimir2022 [97]3 years ago

8 0

Answer: Thats false the Russians were the first

Explanation:

Luda [366]3 years ago

7 0

Answer:False

Explanation:Because during the cold war between the Russians and the U.S. the Russians were the first to send a satellite and the U.S. were the first to send a man

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Will a parachute slow a skydiver more at a very high altitude or a lower altitude?

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The answer is High altitude

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3 years ago

How can waves transfer energy without transporting matter from one place to another?<br>

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2 years ago

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3 years ago

Selena is learning about how engineers choose metals for spacecraft. She discovers that spacecraft engineers often mix other met

Elena-2011 [213]

Ti is a transition metal.

<h3>Further explanation</h3>

Chemical symbol represent element or compound

The elements are arranged in the periodic system

1. 22

This is the atomic number of Titanium

The Atomic Number (Z) indicates the number of protons of an element

2. Ti

This is the symbol (chemical formula) of titanium

3. 47.90

This is the mass number of Titanium

Mass Number (A) = Number of protons + Number of Neutrons

Atomic Number (Z) = Mass Number (A) - Number of Neutrons

4. Titanium

This is the name of the element

To determine which group, alkaline, alkaline earth or transition it can be seen from the electron configuration

alkali and alkali earth : configuration from orbital 1s-7s

transition : configuration from orbital 3d-6d (Block d)

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3 years ago

Calculate the work associated with the compression of a gas from 121.0 L to 80.0 L at a constant pressure of 16.7 atm.

Mkey [24]

Answer:

6.94 × 10⁴ J

Explanation:

We can calculate the work (W) associated with the compression of a gas at constant pressure using the following expression:

W = -P . ΔV

where,

P is the external pressure

ΔV is the change in the volume

Knowing that 1 atm.L = 101.325 J, the work of compression is:

$W=-P\times \Delta V=-16.7atm\times(80.0L-121.0L)\times\frac{101.325J}{1atm.L} =6.94\times10^{4} J$

The positive sign of the work means that the surroundings do work on the system.

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2 years ago