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3 years ago

What is the missing number in the sequence 3,5,9,_,15,23,33

Chemistry

2 answers:

balu736 [363]3 years ago

6 0

Answer:

In every sequence even numbers are added in order.

3, 5, 9, 15, 23, 33

balu736 [363]3 years ago

6 0

Explanation:

I don't think there is a missing number

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What are 5 most abundant elements in the Earth's crust

allochka39001 [22]

Explanation:

Element Abundance percent by weight Abundance parts per million by weight

Oxygen 46.1% 461,000

Silicon 28.2% 282,000

Aluminum 8.23% 82,300

Iron 5.63% 56,300

4 0

3 years ago

Read 2 more answers

Which type of river is similar to a mature river, but flows more slowly so has less power to change the landscape? Select one: a

Ede4ka [16]

Answer:

The correct option is;

C. Old Age River

Explanation:

Among the three stages of the development of a river, which are the youthful, mature, and old age stages, the old age river is least dynamic

The water is very slow moving with a low gradient and lesser erosive power to alter the landscape which results in the appearance of flood planes

Examples of old age rivers include, lower Ganges, lower Nile, Indus, and Yellow rivers

Old age rivers are characterized by a broad shape, with a wide flood plane, a very gentle gradient and the water current is low.

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4 years ago

Why is a crystal of Strontium chloride described as an extended structure?

olchik [2.2K]

Answer:

Explanation:

Chloride is described as an extended structure because its atoms are arranged following an endless repeating pattern and are of distinct ratio

Crystals and polymers mostly form extended structures as seen in the formation of sodium chloride whereby the ions in the compound are arranged following a repeating pattern. ( i.e. has a giant ionic structure ).

Chloride is a considered an extended structure because in sodium chloride it forms an unending repeated pattern of ions which makes it a perfect example of an extended structure.

Hence we can conclude that Chloride can be described as an extended structure because its atoms are arranged following a repeating pattern and are of distinct ratio.

5 0

3 years ago

Consider an insulated container in which water (2.58 g) solidifies at 0 oC and 1 atm on the surface of a 55 g aluminum block. As

yarga [219]

Answer:

17.41°C is the change in temperature of the aluminum block.

Explanation:

Latent heat of fusion water = 334 J/g

Heat required to freeze 1 gram of water = -334 J

Heat required to freeze 2.58 grams of water = Q

$Q=2.58 g\times (-334 J/g)=-861.72 J$