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Ymorist [56]
3 years ago
5

HURRY NEED NOW! Calcium has a charge of +2. The chart lists the charges of different ions.

Chemistry
2 answers:
cupoosta [38]3 years ago
7 0

Answer:

CaO, CaF2, or CaCl2

Explanation:

In an ionic compound, the charges need to balance out. This is the only set of compounds that fits this criteria.

Agata [3.3K]3 years ago
4 0

Answer:

CaO CaF2 CaCl2 are ionic

Explanation:

Because electronegativity difference between calcium and other atom is more than 1.7

You might be interested in
The distance between two bonded atoms (the bond length), is usually in units of picometers, where 1.00 m = 1.00 x 1012 pm (or 1.
8090 [49]

Answer:

7.52 × 10⁻¹⁴ mi

Explanation:

Step 1: Given data

Bond length between two carbon atoms (l): 121 pm

Step 2: Convert "l" to meters

We will use the conversion factor 1.00 m = 1.00 × 10¹² pm.

121 pm × (1.00 m / 1.00 × 10¹² pm) = 1.21 × 10⁻¹⁰ m

Step 3: Convert "l" to miles

We will use the conversion factor 1.00 mi = 1609.34 m.

1.21 × 10⁻¹⁰ m × (1.00 mi / 1609.34 m) = 7.52 × 10⁻¹⁴ mi

4 0
4 years ago
What are the isotopes? how all of the isotopes of an atom are similar and how are they different?
madam [21]
Isotopes are the same element with a different mass number. They are similar because once again the protons are equal to the atomic number which keeps the identity of the atom the same. But they are different because the masses of each is different.
5 0
4 years ago
Which statement best explains the effect of the sestina structure in Elizabeth Bishop's "Sestina"?
IceJOKER [234]

Answer:

The sestira structure makes the poem feel like a playful puzzle, but aciels nothing to the meaning of the poem

The repetition of the last word in each line creates a reflective rhythm and tone in the poem while also making significant words

easily recognizable

Explanation:

That was a really good one, I think you may want to go with that answer.

8 0
3 years ago
A hot metal plate at 150°C has been placed in air at room temperature. Which event would most likely take place over the next fe
Agata [3.3K]

Answer:

not goin to be rude but I don't even get the question??

5 0
3 years ago
What is the approximate bond angle around the central carbon atom in acrolein?
Pavlova-9 [17]
Hello!

The approximate bond angle around the central carbon atom in acrolein is 120°

The structure of acrolein is shown in the figure below. From the structure, we can deduce that the central carbon atom is in an sp2 hybridization (Atoms with a double bond hybridize in an sp2 fashion).

Atoms with sp2 hybridization have trigonal planar geometry, in this kind of hybridization, bonds are oriented the farthest away possible from each other, to minimize overlapping and the angle that allows that is 120°. 

Have a nice day!

3 0
4 years ago
Read 2 more answers
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