FILL IN TH BLANK PLEASES 8TH GRADE SCIENCE!!!!

Chemistry

1 answer:

asambeis [7]3 years ago

5 0

The elements helium neon and Exon are all part of the same _______ on the periodic table.

B. Group

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Help me please!!!!!!!!

ale4655 [162]

Answer:

that's a hard one

Explanation:

6 0

2 years ago

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What is the most common of all compounds are composed of molecules whose atoms are arranged in a straight chain, a branched chai

Gemiola [76]

Sugar's carbon molecules can be arranged in a straight chain, a branched chain, or a ring.

3 0

3 years ago

T/F___ At the eutectic composition, an alloy can solidify at a constant temperature.___ For effective dispersion strengthening,

azamat

Answer:

TRUE
FALSE
TRUE
FALSE
FALSE
TRUE

Explanation:

At the eutectic composition, an alloy can solidify at a constant temperature : TRUE . this is because at eutectic composition the type of reaction that takes place there is invariant reaction in its thermal equilibrium
For effective dispersion strengthening, the dispersed phase should be needle-like, as opposed to round : FALSE. because the rounded shape will not cause a crack.
Intermetallic compounds are usually hard and brittle : TRUE. because Intermetallic compounds prevents dislocation movements and this makes them brittle and hard
For the effective dispersion and strengthening, the dispersed phase should be continuous : FALSE. this is because the dispersed precipitate must be small and not continuous
Stoichiometric intermetallic compounds exist over a range of compositions : FALSE
Faster solidification results in smaller interlamellar spacing : TRUE

4 0

2 years ago

What is required for an electron to move between energy levels?

Bingel [31]

It required a fixed finite amount these zones are known as energy levels

4 0

3 years ago

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Please help... I am begging...

iVinArrow [24]

Answer:

The number, such as 98.7 FM, of a radio station represents:

the frequency in which is transmitted the radio signal.

Explanation:

The radio FM is the modulated frequency, which means that all the information is sent by just a signal, with different frequencies which difference them, the radio FM use the frequencies from 88 MHz until 108 Mhz (MHz is a measuring unit for the frequency), with a minimal space among them of 0.2 MHz, this last means that you could find a signal in 88.0 MHz, and the next should be 88.2 MHz, next 88.4 MHz and so (at least, regularly the space between two frequencies is more than 0.2 MHz).

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3 years ago