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Mrac [35]
3 years ago
11

What would you expect to have the highest melting point?

Chemistry
1 answer:
Georgia [21]3 years ago
6 0

Answer:

it is expected that highest melting points correspond to compound with high molecular weight with more force of attractions within the moleules

Explanation:

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Among these element groups, which is least likely to form ions?: 7A 3A 1A 4A
natta225 [31]

The  element  group  which  is least  likely  to form ions  is 4A  group


 <u><em>explanation</em></u>

Element   of   group  4A   has   4  valence  electrons.  for example Carbon which has   [He] 2S2 2P2  electron configuration has 4 valence electrons.

Since 4A elements has 4 valence electrons ,  it means  that  their valence shell  is half  filled which is  relatively stable. <em>For  this reason 4A element readily  form  ions.</em>

7 0
3 years ago
QUICK I NEED THE ANSWER!! Compare the symmetry of an echinoderm to the symmetry of worms
Nikitich [7]

Answer:

C.Echinoderms have radial symmetry and worms have bilateral symmetry

Explanation:

Echinoderms evolved from animals with bilateral symmetry. The larvae of all echinoderms are bilaterally symmetrical but lost during metamorphosis  developing into radial symmetry adult. Examples of echinoderms are  starfish, sea urchins, sand dollars.

Worms are invertebrate animals having bilateral symmetry. They have a definite anterior (head) end and a posterior (tail) end. Worms have brains that help them detect objects, food,  mates, and predators quickly.

5 0
3 years ago
Answer Answer Answer Answer
timofeeve [1]

Answer:

A

Explanation:

The carrot itself was made up of the same chemical bonds and chemicals even when it was cut but it was cut affecting the form/shape

In chemical changes, the object undergoes a change where the chemicals themselves undergo a change

5 0
3 years ago
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What statement would beast describe a digital signal
Assoli18 [71]
Best* and are there answer choic
6 0
4 years ago
Rank the following compounds in order of increasing solubility in water. Items (4 items) (Drag and drop into the appropriate are
charle [14.2K]

Answer:

CaO < BaO < KCl <KI

Explanation:

Let us remember that the solubility of an ionic substance in water depends on the magnitude of the lattice energy and the hydration energy.  If the hydration energy is equal to or is greater than the lattice energy, the substance dissolves in water.

However, the lattice energy depends on the size of the ions. The smaller the ions in the ionic compound, the higher the lattice energy and the lesser the solubility of the ionic compound.

KI has the least lattice energy and the highest solubility in water while CaO has the highest lattice energy and the least solubility in water.

6 0
3 years ago
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