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3 years ago

Which element is classified as an alkali metal?

1 answer:

8 0

Answer: The alkali metals consist of the chemical elements lithium (Li), sodium (Na), potassium (K),[note 1] rubidium (Rb), caesium (Cs),[note 2] and francium (Fr).

Explanation:

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Explain why it is better to use data from multiple trials to determine the molarity of acetic acid rather than data from a singl

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This is the answer, in the picture :)

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3 years ago

In the reaction N2 + 3H2 → 2NH3, what is the mole ratio of hydrogen to nitrogen?

uranmaximum [27]

Answer: The mole ratio of hydrogen to nitrogen is 3 mole: 1 mole, 3:1

Explanation:

•Mole ratios are determined using the coefficients of the substances in the balanced chemical equation. •Each coefficient represents the number of mole of each substance in the chemical reaction.

•The mole ratio can be determined by first writing out a balanced chemical equation for the reaction.

For this reaction the balanced chemical equation is

N2(g) + 3H2(g) ----> 2NH3(g)

1mol:3mol : 2mol

From the equation we can see that 1 mole of N2(g) reacts with 3 moles of H2(g) or 3 moles of H2(g) react with 1 mole of N2(g) to produce 2 moles of NH3(g).

Therefore, the mole ratio of hydrogen to nitrogen is 3 mole: 1 mole, 3:1

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3 years ago

Select the ion. 1)Cu 2)PO4-3 3)SO2

Lilit [14]

I believe the answer is B. PO4-3

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3 years ago

Read 2 more answers

When a bimetallic bar made of copper and iron strips is heated, the bar bends toward the iron strip. the reason for this is?

Digiron [165]

iron gets hotter before copper.

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2 years ago

2. Water can be understood as both yin and yang. Challenge: how many ways can you explain why ?

GuDViN [60]

Water can be understood as both yin and yang. The number of ways Yin and Yang can be explained is in numerous ways.

Yin and Yang explain how to exist in harmony and in balance with nature. Yin and Yang are not distinct entities, but rather two extremes of a spectrum. Everything Yin includes a trace of Yang. Also, everything Yang contains a trace of Yin. They are always in connection with one another.

The yin is the physical aspect of nature and the yang is the forces surrounding these physical aspects.

Some of the ways in which Yin and Yang can be explained are as follows:

Yin and Yang can be explained from the water, whereby the water is the Yin while the wind carrying the water waves is known as the Yang.

In the body, the Yin shows the anatomy and structure of the body while the Yang explains the psychological functioning of the body.

Disruption in either Yin or Yang can cause an imbalance in nature.

Therefore, we can conclude that the number of ways in which we can explain the Yin and the Yang is numerous.

Learn more about nature here:

brainly.com/question/23250589?referrer=searchResults

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2 years ago