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Vaselesa [24]
3 years ago
11

What is common to all elements in the same group on the periodic table? Their properties are very different.

Chemistry
2 answers:
Mrac [35]3 years ago
7 0
Hello,

<span>B.They have the same number of valence electrons. </span>
sattari [20]3 years ago
7 0
B. They have the same number of valence
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If parents wanted to pick their child's traits like hair color, gender, eye color, what would doctors have to do?
kap26 [50]

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Nothing

Explanation:

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Zinc metal reacts with copper sulfate through the following
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26.9

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How can one tell, just by looking at the titration curve of an acid titrated by a strong base (with no calculations), if the ana
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8 0
3 years ago
Hello people ~
pochemuha

Answer:

C

H²O is dissociated in water into H³O+ (hydronium ions) and OH- (hydroxide) given by;

2H²O <-----> H³O+ + OH-

If you notice initially we have 4 hydrogen atoms and 2 oxygen atoms. And similarly after the reaction we have 4 hydrogen atoms and 2 oxygen atoms.

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or 2:1

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8 0
2 years ago
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Name two solid liquid and gaseous element at the normal temperature and normal press<br>ure​
liubo4ka [24]

Answer:

Solid: calcium and potassium

Liquid: mercury and bromine

Gaseous: oxygen and fluorine

Explanation:

Matter exists in three different states namely: solid, gaseous and liquid. Elements that are found in nature are classified as matter. Since, these elements are grouped as matter, they can either be found as either solids, liquids or gases at normal temperature and pressure.

At normal temperature (20°C or 293K) and pressure (1 atm), the following elements are found to exists in the respective state of matter:

Solid: Calcium (Ca) and potassium (K)

Liquid: Mercury (Hg) and bromine (Br)

Gaseous: Oxygen (O) and fluorine (F)

7 0
3 years ago
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