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3 years ago

Please answer correctly nobody answers questions like this on brainly. BTW ITS STEM.

Chemistry

1 answer:

azamat3 years ago

6 0

Answer:

I believe your answer is B. Experimental research may lead to understanding descriptive research.

Generally, experimental research is a trial and error method that tests the hypothesis of descriptive research. Descriptive research being the theoretical or studied characters of a topic.

Please let me know if I had this wrong, and I'll do some extra research for you.

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How many atoms are in a sample of carbon weighing 16 grams? Round your answer to two decimal places.

Gennadij [26K]

Answer:

d) 8.01 E23 atoms

Explanation:

mol ≡ 6.022 E23 atoms

∴ mass C = 16 g

∴ molar mass C = 12.0107 g/mol

⇒ mol C = (16 g)*(mol/12.0107 g) = 1.332 mol

⇒ atoms C = (1.332 mol)*(6.022 E23 atoms/mol)

⇒ atoms C = 8.02 E23 atoms

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3 years ago

The salt used to malt snow on a walkway outside a house is calcium chloride and is sold in 20kg bags. How many molecules of calc

tekilochka [14]

1. Sorry I just need points but look luck

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4 years ago

Predict the organic product formed when phosgene reacts with an excess of methanol.

gulaghasi [49]

When phosgene is reacted with an excess of methanol, this produces dimethyl carbonate. Dimethyl carbonate is used in methylating anilines, phenols, and carboxylic acids, and is also being studied for its use as an alternative additive in fuel.

The industrial production of dimethyl carbonate no longer uses phosgene because of the latter's toxicity. Phosgene widely gained infamy when it was used in chemical warfare during WWI.

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4 years ago

What word or two-word phrase best describes the shape of the hydrogen cyanide ( hcn ) molecule?

elena-14-01-66 [18.8K]

Answer : Linear

Explanation : Hydrogen Cyanide (HCN) when drwan in the Lewis diagram shows carbon atom at the center with no lone electron pairs.

The carbon and nitrogen atoms are bonded through a triple bond which counts as "one electron pair".

The molecule has two electron pairs in all and appears to be linear.

Also, according to the VSEPR theory; the electron clouds on atoms around the carbon will try to repel each other.

They will get pushed apart, which gives HCN molecule a linear molecular geometry or shape.

The bond angle that is developed will be 180 degrees since it has a linear molecular geometry of HCN. The hybridisation observed in this molecule is SP.

5 0

4 years ago

Read 2 more answers

The sugar in a soda does ? because it does not settle at the bottom of its container?

Airida [17]

Answer:

dissolves

Explanation:

5 0

3 years ago