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3 years ago

6

Give examples of two properties of water that are caused by the attractions between water molecules.

1 answer:

solniwko [45]3 years ago

8 0

1. Waters high heat of evaporation.
2. Waters high polarity.

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Hershey and Chase grew some T2 phages in 32P-containing medium and then used that phage to infect a bacterial culture. After the

Ainat [17]

Answer:

The pellet fraction will be most radioactive because the heavy protein part of ghost will be present in the the pellet fraction.

Explanation:

supernatant can be defined as a liquid part that lies above the sediment of the centrifuge tube on the other hand pallet is a solid material present at the bottom end of the centrifuge tube.

As protein molecules in the given experiment is radio labelled that"s why the pellet fraction will be radio labeling part because the heavy protein molecules will be present in the pellet fraction.

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3 years ago

What is the place of metalloids in the periodic table?

sleet_krkn [62]

B,Si,Ge,As,Sb,Te, and At are all the metalloids on the periodic table of elements.

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3 years ago

How many valence electrons are transferred from the calcium atom to iodine in the formation of the compound calcium iodide?

Andreas93 [3]

Answer:

Two electrons.

Explanation:

Calcium is the element of second group and forth period. The electronic configuration of Calcium is - 2, 8, 8, 2 or $1s^22s^22p^63s^23p^64s^2$

There are 2 valence electrons of Calcium.

Iodine is the element of seventeenth group and fifth period. The electronic configuration of Iodine is - 2, 8, 18, 18, 7 or $[Kr]4d^{10}5s^25p^5$

There are 7 valence electrons of iodine.

Calcium iodide, $CaI_2$ is formed when 2 valence electrons of calcium are loosed and they are gained by 2 atoms of iodine.

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3 years ago

What amount of oxygen gas is needed to produce 2.85 mol of chlorine gas……

MariettaO [177]

Answer:

B

Explanation:

2,85/3=0,95

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3 years ago

Chem help please? Thanks! <3

emmasim [6.3K]

What u need ????? Help on Doing ?

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