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omeli [17]
4 years ago
11

Is francium cation or anion?

Chemistry
1 answer:
lyudmila [28]4 years ago
3 0

Answer:

Cation.

Explanation:

This is due to Francium being a positively charged element. It's in the first period, which means it has one extra electron, making it a positively charged element.

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Name the functional group in the following molecule:
stellarik [79]

Answer:

The functional group is called an amide. This is option C.

Explanation:

We see this is a three-carbon chain (a propyl chain), that ends with a double bond to oxygen and a single bond to an amine group (NH2). If the end carbon were only bound to the NH2 group and 2 hydrogen atoms, it would be an amine. If the end carbon only had a double bond to oxygen and a single bond to hydrogen, it would be an aldehyde. However, when a terminal carbon (a carbon at the end of a chain) has both a double bond to oxygen, and a single bond to an amine (NH2), it is called an amide.

We can also discount the answer thiol right away because those have a carbon-sulfur bond, and there is no sulfur in this molecule.

3 0
4 years ago
When a chemical reaction destroys a solid
bogdanovich [222]

Answer:

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3 years ago
During science lab, Jacob mixes together sodium hydroxide (NaOH) and hydrochloric acid (HCl). The two chemicals react to form so
Illusion [34]
HCl + NaOH ----> NaCl + H2O
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3 years ago
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Dennis_Churaev [7]

Answer:

Bycatch can negatively affect species such as dolphins, sea turtles, protected fish, and whales by harming animals, contributing to population declines, and impeding population recovery. Other impacts of fisheries on marine mammals may include removal of their preferred prey and sometimes habitat damage.

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3 years ago
What is the percent by mass of water in the hydrate? %
dusya [7]

Sorry I can't tell you the answer but, I can tell you something...

Dividing the mass of the water lost by the mass of hydrate used is equal to the fraction of water in the compound. Multiplying this fraction by 100 gives the percent water in the hydrate.

How to find it?

Divide the mass of the water lost by the mass of hydrate and multiply by 100. The theoretical actual percent hydration percent water can be calculated from the formula of the hydrate by dividing the mass of water in one mole of the hydrate by the molar mass of the hydrate and multiplying by 100.

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