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2 years ago

Which statement is true about elements?

Chemistry

2 answers:

vovikov84 [41]2 years ago

8 0

Answer: the answer would be C

Explanation: they combine to form atoms of example 2 hydrogen atoms and 1 oxygen atom would be a water molecule those three atoms are combining to a water molecule

also can i please have branlyest i never had it yet and i have been trying my best

LiRa [457]2 years ago

5 0

A or C are the best options

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“Fe(NO3)3” is a...

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Answer:

1. Fe(NO3)3 is C. Chemical formula

2. Manganese Sulphate is C. Name

3. Zn is C. Symbol

Hope this helps!

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3 years ago

Discuss the phenomena of sunrise and sunset seen on Earth and describe how they will be different from the perspective of outer

Monica [59]

Answer:

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Explanation:

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2 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.

7 0

2 years ago

This image represents what?

Licemer1 [7]

Answer:

nitrogen atoms

Explanation:

3 0

3 years ago

Consider this reaction: 3Fe2O3(s) + CO(g) → 2Fe3O4(s) + CO2(g).

telo118 [61]

The rate of a reaction increases if the temperature is increased, the concentration of a dissolved reactant is increased and the pressure of a reacting gas is increased. Hope this answers the question. Have a nice day. Feel free to ask more questions.

4 0

2 years ago

Read 2 more answers