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docker41 [41]
3 years ago
6

What do all the light metals have in common?

Chemistry
2 answers:
nasty-shy [4]3 years ago
8 0
D all apear yellow under a micrscope
goldfiish [28.3K]3 years ago
6 0

Answer:

C. All have just 1 or 2 electrons in their outer orbit.

Explanation:

The light metals in the periodic table include: Lithium (Li), Beryllium (Be), Magnesium (Mg), Aluminum(Al) and Titanium (Ti).

Li belongs to Group 1 i.e. alkali earth metals with an outer electron configuration of 2s¹

Be and Mg to Group 2 i.e. alkaline earth metals with an outer electron configuration of 2s² and 3s² respectively

Al belongs to group 13 with an outer electron configuration of 3s²3p¹

Ti belongs to the transition metal series 4s²3d²

Li and Al have one electron in their outermost orbit whereas the rest have two electrons.

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Which of the following samples would be the most compressible?
Andrej [43]

Answer:

CO2 (g)

Explanation:

In solids the interatomic or intermolecular space is least . It is most pronounced in gases . That is why inter molecular or interatomic attraction is least in gases . That is why gas flows .

Hence , when we try to compress a gas , due to inter molecular space , it is most likely to get compressed . It will be least compressed when we try to compress a solid because of lack of intermolecular space .

7 0
2 years ago
PLEASE HELP ME ON THIS QUESTION
Brilliant_brown [7]
He call me big purr
4 0
3 years ago
What is the molar concentration of 35 mL of H2SO4 that neutralizes 25 mL of 0.320M NaOH
stira [4]
V ( H2SO4) = 35 mL / 1000 => 0.035 L

M ( H2SO4) = ?

V ( NaOH ) = 25 mL / 1000 => 0.025 L 

M ( NaOH ) = 0.320 M

number of moles NaOH:

n = M x V

n = 0.025 x 0.320 => 0.008 moles of NaOH

Mole ratio:

<span>2 NaOH + H2SO4 = Na2SO4 + 2 H2O
</span>
2 moles NaOH ---------------------- 1 mole H2SO4
0.008 moles moles NaOH ---------- ??

0.008 x 1 / 2 => 0.004 moles of H2SO4 :

Therefore:

M ( H2SO4) = n / V

M = 0.004 /  0.035

= 0.114 M

hope this helps!



6 0
3 years ago
Two basic properties of the liquid phase
melamori03 [73]
Fixed density
Particles move smoothly

6 0
3 years ago
Dinitrogen tetraoxide and nitrogen dioxide are two gases that exist in equilibrium at a range of temperatures. NO2 is a reddish
Vilka [71]

Answer:

1-C

2-A

3-B

Explanation:

K=[N204]/[NO2]

In the first question the reaction is at equilibrium. When the temperature is decreased, more N2O4 if formed and K increases. When the temperature is increased, more NO2 is formed and K decreases.

6 0
3 years ago
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