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2 years ago

The following is an example of what type of chemical reaction?

Chemistry

1 answer:

Oksanka [162]2 years ago

7 0

The answer is d: Combustion, because it is the so-called combustion of methan. (Check your lesson)

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What is the name of the state when electrons absorb energy and move to a higher energy level?

murzikaleks [220]

Answer:

Excited state is the name of the state when electrons absorb energy and move to a higher energy level.

Explanation:

3 0

3 years ago

Which pair of elements can form an ionic compound? A) Two atoms of hydrogen B) One atom of sodium and one atom of fluorine C) On

polet [3.4K]

The answer would be B. <span>One atom of sodium and one atom of fluorine</span>

5 0

2 years ago

Read 2 more answers

What shape and bond angles would this molecule have in three dimensions?

Darya [45]

Answer : The shape and bond angle of the given molecule is, bent and $120^o$ respectively.

Explanation :

In the given molecule, 'Y' is the central atom and 'X' is the neighboring atom. In the given molecule, there are 4 electron pairs that means the hybridization will be $sp^3$ and the electronic geometry of the molecule will be tetrahedral.

But as there are two atoms around the central atom, the third and fourth position will be occupied by lone pair of electrons. The repulsion between lone and bond pair of electrons is more and hence the molecular geometry will be bent or angular and the bond angle will be, $120^o$ .

Hence, the shape and bond angle of the given molecule is, bent and $120^o$ respectively.

5 0

2 years ago

Read 2 more answers

PLS HELP ASAP. list 5 chemicals that contribute to ozone layer depletion?

Rashid [163]

Answer:chlorofluorocarbons (CFCs)

halon.

carbon tetrachloride (CCl4)

methyl chloroform (CH3CCl3)

hydrobromofluorocarbons (HBFCs)

hydrochlorofluorocarbons (HCFCs)

methyl bromide (CH3Br)

bromochloromethane (CH2BrCl)

Explanation:

BRAINLIEST pls

3 0

2 years ago

What is the mass in 6.34x10^23 molecules of calcium chloride

Liono4ka [1.6K]

Answer : The mass of calcium chloride is, 116.84 grams

Solution : Given,

Molar mass of calcium chloride, $CaCl_2$ = 110.98 g/mole

Number of molecules of calcium chloride = $6.34\times 10^{23}$

As we know that,

1 mole of calcium chloride contains $6.022\times 10^{23}$ molecules of calcium chloride

or,

1 mole of calcium chloride contains 110.98 grams of calcium chloride

Or, we can say that

As, $6.022\times 10^{23}$ molecules of calcium chloride present in 110.98 grams of calcium chloride

So, $6.34\times 10^{23}$ molecules of calcium chloride present in $\frac{6.34\times 10^{23}}{6.022\times 10^{23}}\times 110.98=116.84grams$ of calcium chloride

Therefore, the mass of calcium chloride is, 116.84 grams

6 0

3 years ago