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3 years ago

12

classify the following compounds as ionic (metal + nonmetal) , covalent (nonmetal + nonmetal) or both (compound containing a pol

y atomic ion)

1 answer:

musickatia [10]3 years ago

6 0

Answer:

1. ionic

2. covalent

3. covalent

4. both

Explanation:

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Express <br><img src="https://tex.z-dn.net/?f=%20%7B5%7D%5E%7Bn%20%2B%202%7D%20%20-%20%20%7B5%7D%5E%7Bn%20%2B%201%7D%20%20-%20%2

Musya8 [376]

Answer:

$5^{n}$ x19

Explanation:

$5^{n+2}$ - $5^{n+1}$ - $5^n$

$5^n$ (5²- $5^{1}$ - $5^{0}$ )

$5^n$ (25-5-1)

5^n(19)

$5^{n}$ x19

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3 years ago

The boiling point of 100 milliliters of water at sea level, vapor pressure 760 mm hg is 100oc. if, under different conditions, t

eimsori [14]

It has to be D. the time needed to boil the water decreased

7 0

4 years ago

Read 2 more answers

A solution is made by dissolving 26.42g of (NH4)2so4 in enough h2o to make 50.00ml of solution

DochEvi [55]

Moles of ammonium sulfate = 26.42/molar mass of (NH4)2SO4
= 26.42/132.14 = 0.19 mole.

Molarity = moles of ammonium sulfate/volume of solution
= 0.19/50x10^-3
= 3.8M

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4 years ago

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DNA can be replicated through an in vivo mechanism or a polymerase chain reaction (PCR) mechanism. Match each description to the

umka2103 [35]

Complete question from other source attached

Answer:

Explanation:

Catalyzed by DNA polymerase - both. DNA polymerase catalyzes DNA replication in the cell. However, purified versions of the enzyme are also used to synthesise DNA as part of PCR reactions

involves leading strand synthesis only - PCR. In PCR, lagging strand synthesis is not carried out because the DNA is denatured (rendered single stranded). Therefore, each strand is replicated independently by leading strand synthesis

duplicates a small fragment of the genome - PCR. Usually, to carry out PCR, small sequences called primers are used that specify the region of DNA to be replicated

duplicates the entire genome - in vivo replication - when the DNA is replicated in vivo, the entire genome is replicated. This is carried out prior to cell division so that two daughter cells can each inherit a copy of the entire genome

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4 years ago

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Margarita [4]

The first one shows greater amplitude because there is more space between the waves. The amplitude of a wave refers to the maximum amount of displacement of a particle on the medium from its rest position. In a sense, the amplitude is the distance from rest to crest. Similarly, the amplitude can be measured from the rest position to the trough position.

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3 years ago