Recent questions in Chemistry

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Which HUMAN activity has the GREATEST impact on the creation of greenhouse gases? Scuba diving in the ocean. Composting food scraps. Buying locally grown produce. Burning fossil fuels.

Vava asked Dec 15, 2024

by Vava

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179k views

What gives a good yield of hydrate/gem-diol only?

Dubonzi asked Dec 15, 2024

by Dubonzi

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4 votes

24.9k views

Change the units. (1) 5055 mm to m

Henry Ecker asked Dec 15, 2024

by Henry Ecker

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Chemists have determined that elements with atomic numbers greater than 92 are all radioactive. In general, their half-lives are much shorter than the age of the universe. This means that they no longer

Izikon asked Dec 15, 2024

by Izikon

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5 votes

204k views

A balloon is rubbed against a wall. The picture on the left shows the balloon and the wall before rubbing. The picture on the right shows the balloon and the wall after rubbing. What happened when the

Mtkopone asked Dec 15, 2024

by Mtkopone

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3 votes

197k views

Different functional groups absorb IR radiation at different intensities and different frequencies, and therefore the signal from each group appears in a particular region of the IR spectrum. The absorption

Claudehenry asked Dec 15, 2024

by Claudehenry

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1 answer

4 votes

71.9k views

In the IUPAC naming system, an aldehyde is named by replacing the e of the name of the corresponding alkane with A.al B.yne C.one D.ene E.ol

Givi asked Dec 15, 2024

by Givi

7.6k points

1 answer

1 vote

217k views

Explain why the first ionization energy of magnesium is lower than that of fluorine. Explain why the third ionization energy of magnesium is higher than that of fluorine. A) Magnesium has more electrons

Luisgepeto asked Dec 15, 2024

by Luisgepeto

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1 answer

5 votes

228k views

If a product's food label indicates it contains 80 calories per serving, and you consume three servings, how many calories did you consume?

Ista asked Dec 15, 2024

by Ista

8.3k points

1 answer

2 votes

84.8k views

True or False: Saturn's rings would reach from the Earth to the Earth's moon if they were placed between them.

Andy Sander asked Dec 15, 2024

by Andy Sander

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1 answer

2 votes

136k views

Please answer the following quickly. 1)Explain briefly another activity that helps to prove the idea that solid is discontinuous. 2) What is the expandable metal used in a thermometer? 3) a.Explain the

Icebat asked Dec 15, 2024

by Icebat

7.9k points

1 answer

3 votes

52.1k views

Which of Al, Au, Br, Ca, Cs, F, H, He, Hg, I, K, Mg, Na, O, P, S, and Si glows in the dark A) Br B) Ca C) Hg D) Na

Berlin asked Dec 15, 2024

by Berlin

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190k views

____ oxide is valuable for sterilization of heat-sensitive objects such as plastics, surgical and diagnostic appliances, and spices, but other related gases are available that are less toxic. a) Nitrous

Xenione asked Dec 15, 2024

by Xenione

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1 vote

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Ion charges of main group elements can be predicted using the group number and the octet rule. a) True b) False c) Partially true d) Not mentioned

Jimmy Fagerholm asked Dec 15, 2024

by Jimmy Fagerholm

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5 votes

110k views

An organic compound contains 20.0 % Carbon, 6.66% Hydrogen, 47.33% Nitrogen and the rest was Oxygen. Its molar mass is 60 gm. The molecular formula of the compound is? (A) CH₄N₂O (B) CH₂NO₂ (C) C₂H₆NO

JosephDoggie asked Dec 15, 2024

by JosephDoggie

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5 votes

107k views

The half-life of A-15 is 1.90 seconds. If one had 106 g at the beginning, how many grams would be left after 6.00 seconds has elapsed?

Ben Thielker asked Dec 15, 2024

by Ben Thielker

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1 answer

2 votes

48.1k views

Which material should the engineer choose if he wants the filling design to be durable and attach to the natural tooth? A. composite B. silver C. gold D. porcelain

Lisaann asked Dec 15, 2024

by Lisaann

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2 answers

0 votes

129k views

A molecule with a trigonal bipyramydal geometry has a bond angle of? A. <120° for equatorial bonds and <90° for axial bonds. B. 180°. C. <90°. D. 120° for equatorial bonds and 90° for axial bonds. E. 120°.

Jsaye asked Dec 15, 2024

by Jsaye

7.4k points

2 answers

1 vote

60.8k views

What is thought to be important in stabilizing the transition state of the bound substrates in the active site of aspartate transcarbamoylase?

Erwin Smith asked Dec 15, 2024

by Erwin Smith

8.1k points

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5 votes

169k views

Which element belongs to the least reactive group of elements? * 1 point Neon (Ne) Silver (Ag) Carbon (C) Potassium (K)

Chris U asked Dec 15, 2024

by Chris U

9.7k points

1 answer

5 votes

127k views

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