1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mariarad [96]
2 years ago
13

Solve this questions please​

Chemistry
1 answer:
Andreyy892 years ago
8 0

Answer:

A

Explanation:

A solid that dissolves in water produce alkaline solutions

ex. sodium reacts with water to form sodium hydroxide – caustic soda

You might be interested in
Using the word bank below label the wave.
lesya692 [45]

Answer: crest I don’t really know how to explain it but yea it’s crest

8 0
3 years ago
Read 2 more answers
Carbon diselenide (CSe2) is a liquid at room temperature. The normal boiling point is 125°C, and the melting point is –45.5°C. C
Tema [17]

Answer:

Explanation:  The strengths of the inter molecular forces varies as follows -

        CO_{2}< CS_{2} < CSe_{2}

The normal boiling point of CSe2 is 125°C and that of CS2 is 116°C, which explains the trend that as we move down the group, the boiling point of e compound increases as the size increases.

This usually happens because larger and heavier atoms have a tendency to exhibit greater inter molecular strengths due to the increase in size . As the size increases, the valence shell electrons move far away from the nucleus, thus has a greater tendency to attract the temporary dipoles.

And larger the inter molecular forces, more tightly the electrons will be held to each other and thus more thermal energy would be required to break the bonds between them.

5 0
3 years ago
in an experiment magnesium ribbon was heated in air the product formed was found heavier than original ribbon.potassium manganat
AlladinOne [14]

Answer:

1: due to difference in reactivity and melting point

2 during the reaction both combine with oxygen in this case magnesium remain solid but some potassium vaporise

5 0
3 years ago
At 500 K the reaction 2 NO(g) + Cl2(g) ⇌ 2 NOCl(g) has Kp = 51 In an equilibrium mixture at 500 K, the partial pressure of NO is
Aleks [24]

Answer:

p3=0.36atm (partial pressure of NOCl)

Explanation:

2 NO(g) + Cl2(g) ⇌ 2 NOCl(g)  Kp = 51

lets assume the partial pressure of NO,Cl2 , and NOCl at eequilibrium are P1 , P2,and P3 respectively

Kp=\frac{[NOCl]^{2} }{[NO]^{2} [Cl_2] }

Kp=\frac{[p3]^{2} }{[p1]^{2} [p2] }

p1=0.125atm;

p2=0.165atm;

p3=?

Kp=51;

On solving;

p3=0.36atm (partial pressure of NOCl)

7 0
3 years ago
Please help y’all I don’t understand
VashaNatasha [74]

Answer:

D.

Explanation:

You try to get 8 electron on the outermost "shell" so you have no left over or "valence" electrons.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Provide three different examples of how minerals can form on earth
    10·1 answer
  • In which biome would you find the main types of plant life to be grasses and nonwoody plants
    13·1 answer
  • For which compound does 0.256 mole weigh 12.8 g?
    11·1 answer
  • Does plateau have low elevation
    5·1 answer
  • Which is the number of atoms in 4.5 moles of Hg, correctly written in scientific notation with the correct number of significant
    15·2 answers
  • Ionic compounds can be made from a metallic ion and a nonmetallic ion. Metallic ions are positive (cations). Nonmetallic ions ar
    11·2 answers
  • You make some iced tea by dropping 325 grams of ice into 500.0 mL of warm tea in an insulated pitcher. If the tea is initially a
    6·1 answer
  • Please help me thanks so much?!?!
    14·2 answers
  • Which of the following molecules has a trigonal planar shape?​
    8·2 answers
  • Why does mantle rock begin to sink back towards the lower mantle from the area closest to the crust?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!