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Paladinen [302]
4 years ago
13

Name two fluid technologies that make use of air.

Chemistry
1 answer:
MariettaO [177]4 years ago
4 0

Answer: an air compressor and desk chair.

Explanation:

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Calculate the RF value - Distance travelled by substance x=5cm Distance travelled by solvent = 13cm
Anna35 [415]

Answer:

The rf value is 0.38

Explanation:

You do 5/13 which gives the answer 0.38

7 0
3 years ago
When elements form bonds, it changes their ______ properties.<br>The answer is..? ​
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chemical and physical

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An atom of 14 6 c carbon decays by gamma decay which atom is left after the decay
ladessa [460]
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<span>During gamma emission the nucleus emits radiation without changing its composition, if for example have nucleus with six protons and six neutrons (carbon atom) and after gamma decay there is nucleus with six protons and six neutrons.
Gamma rays are the electromagnetic waves with the shortest wavelengths (1 pm), highest frequencies (300 EHz) and highest energy (1,24 MeV).</span>


7 0
4 years ago
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3 years ago
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The energy of colored light increases in the order red, yellow, green, blue, violet.List the metallic elements used in the flame
Vinil7 [7]

Answer:

Explanation:

Flame test:

The metals ions can be detected through the flame test. Different ions gives different colors when heated on flame. Tom perform the flame test following steps should follow:

1. Dip a wire loop in the solution of compound which is going to be tested.

2. After dipping put the loop of wire on bunsen burner flame.

3. Observe the color of flame.

4. Record the flame color produce by compound

Color produce by metals:

Red = Lithium, zirconium, strontium, mercury, Rubidium (red violet)

Orange-red = calcium

Yellow = sodium, iron (brownish yellow)

Green = green

Blue = cesium. arsenic, copper, tantalum, indium, lead

Violet = potassium (lilac)

3 0
4 years ago
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