All categories

2 years ago

Help asap plzzzzz!!!!!!!!!!!!!

Chemistry

1 answer:

Ira Lisetskai [31]2 years ago

7 0

Answer:

Water will generally require more energy for a phase change compared to a similar substance without hydrogen bonds.

Explanation:

You might be interested in

For each of the following compounds, state whether it is ionic or covalent, and if it is ionic, write the symbols for the ions i

kupik [55]

Answer :

Covalent compound : It is defined as the compound which is formed by the sharing of electrons between the atoms forming a compound.

The covalent compound are usually formed when two non-metals react.

Ionic compound : It is defined as the compound which is formed when electron gets transferred from one atom to another atom.

All the polyatomic ions always form an ionic compound.

Polyatomic ions : It is a charged species that composed of two or more atoms and these charged species are bonded by the covalent bond.

For the given options:

Option A: $KClO_4$

This compound is formed by the combination of potassium, $K^+$ which is a metal and $ClO_4^-$ ion which is a polyatomic ion. Thus, it will form an ionic compound.

Option B: $Mg(C_2H_3O_2)_2$

This compound is formed by the combination of magnesium, $Mg^{2+}$ which is a metal and $C_2H_3O_2^{-}$ ion which is a polyatomic ion. Thus, it will form an ionic compound.

Option C: $H_2S$

Hydrogen and sulfur, both are non-metals and they will form a covalent compound.

Option D: $Ag_2S$

This compound is formed by the combination of silver, $Ag^{+}$ which is a metal and sulfur, $S^{2-}$ which is a non-metal. Thus, it will form an ionic compound.

Option E: $N_2Cl_4$

Nitrogen and chlorine, both are non-metals and they will form a covalent compound.

Option F: $Co(NO_3)_2$

This compound is formed by the combination of cobalt, $Co^{2+}$ which is a metal and $NO_3^{-}$ ion which is a polyatomic ion. Thus, it will form an ionic compound.

6 0

3 years ago

What does a Stationary object line look like?

Paladinen [302]

Answer:

Explanation:It looks like a graph. Google it!

5 0

3 years ago

WILL GIVE BRAINLIEST: Carbon-14 dating is used to find the age of ancient objects. The half-life of Carbon-14 is 5730 years. If

Nostrana [21]

Answer:

half life of carbon=5730 yrs

half life passed=1.5

how old is the pot=??

Explanation:

about 8595 yrs old bcuz its half life is 5730yrs and after 1.5half lives 8595yrs have passed

3 0

3 years ago

What is the formula for tin(ll) chromate

Nimfa-mama [501]

Answer:

SnCrO4

Explanation:

Tin has a charge of 2+

Chromate has a charge of 2-,

therefor, the formula is equal.

4 0

4 years ago

The Sun is a yellow star that's both average in brightness and temperature and is classified as

Roman55 [17]

Answer:

Classifying stars according to their spectrum is a very powerful way to begin to understand how they work. As we said last time, the spectral sequence O, B, A, F, G, K, M is a temperature sequence, with the hottest stars being of type O (surface temperatures 30,000-40,000 K), and the coolest stars being of type M (surface temperatures around 3,000 K). Because hot stars are blue, and cool stars are red, the temperature sequence is also a color sequence. It is sometimes helpful, though, to classify objects according to two different properties. Let's say we try to classify stars according to their apparent brightness, also. We could make a plot with color on one axis, and apparent brightness on the other axis, like this:

Explanation:

7 0

4 years ago