Recent questions in Chemistry

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State whether each of the following refers to a saturated or an unsaturated solution.a spoonful of salt added to boiling water dissolves.

Gianebao asked Oct 3, 2024

by Gianebao

8.7k points

1 answer

3 votes

144k views

calculate the mass of NaOH needed for making a 100.0 ml of 15 mnaoh solution from solid sodium hydroxide.

ChosenJuan asked Oct 3, 2024

by ChosenJuan

7.9k points

1 answer

4 votes

190k views

Explain the importance of carbon bonding in biological molecules

JSchaefer asked Oct 3, 2024

by JSchaefer

7.8k points

1 answer

2 votes

179k views

Containers and drums without labeling should be considered? A) Safe. No special handling is required B) Safe, but handle as if hazardous material was present C) Hazardous Material D) As hazardous material

Sagish asked Oct 3, 2024

by Sagish

8.5k points

1 answer

5 votes

29.5k views

A catalyst for a reaction is indicated by a ____________________ written over the arrow in a chemical equation. a. (c) b. (cat) c. (cr) d. (k)

Pinkal Vansia asked Oct 3, 2024

by Pinkal Vansia

7.9k points

1 answer

2 votes

193k views

Recycling - More than one million tons of aluminum are NOT recycled each year. Where do you throw your cans?

PokerFace asked Oct 3, 2024

by PokerFace

8.0k points

1 answer

3 votes

117k views

To properly sterilize a 1 kg package of meat in a food plant using high-energy electrons (electron energy: 10 MeV, beam current: 0.3 mA), how much electron energy must be deposited? Options: a. 3,000 J

Imjayabal asked Oct 3, 2024

by Imjayabal

7.9k points

1 answer

2 votes

123k views

The FDA deems additives safe if lifetime use presents no more than a 1 in ________ risk of cancer to human beings.

Mkl Rjv asked Oct 3, 2024

by Mkl Rjv

7.6k points

1 answer

1 vote

12.5k views

In a mass spectrometer, under the same conditions, 14N+ and 15N+ ions follow different paths. State the property of these ions that causes them to follow different paths. State one change in the operation

Kuma asked Oct 3, 2024

by Kuma

7.9k points

1 answer

1 vote

166k views

The reaction is initially at equilibrium with a mixture composition of 0.439. True False

Rajendran Nadar asked Oct 3, 2024

by Rajendran Nadar

8.1k points

1 answer

4 votes

163k views

Identify the geometry about interior atoms in ch3nh2.

Nica asked Oct 3, 2024

by Nica

8.3k points

2 answers

4 votes

106k views

The combustion of sugar is a reaction between sugar and oxygen that results in carbon dioxide and water. A combustion reaction requires a large energy input to begin. How does the cell overcome the need

Milenko Jevremovic asked Oct 3, 2024

by Milenko Jevremovic

9.0k points

1 answer

4 votes

64.9k views

What is the perimeter of AYXZ? A. 3.5 in. B. 5.3 in. C. 6.4 in. D. 7.8 in.

Lars Moelleken asked Oct 3, 2024

by Lars Moelleken

8.1k points

1 answer

0 votes

204k views

When depicting a molecule using the structural formula, the lines represent:

Sbp asked Oct 3, 2024

by Sbp

8.9k points

1 answer

5 votes

130k views

Question 10 of 25 Which of the following is a good definition of matter?

Sridhar Katakam asked Oct 3, 2024

by Sridhar Katakam

8.5k points

1 answer

5 votes

186k views

Composition of municipal solid waste in the United States, by weight and by disposal methods

Lahiru Karunaratne asked Oct 2, 2024

by Lahiru Karunaratne

7.8k points

1 answer

3 votes

235k views

the concentration of hydronium ion in a solution of 0.01 m ca(oh)2 is question 3 options: 5x10-13 none of any other answers is correct 1x10-13 1x10-12 5x10-12

Dock asked Oct 2, 2024

by Dock

7.7k points

1 answer

2 votes

178k views

Why do you think coal and sugar are so different from one another when carbon is a major component of each substance?

Sachin Soma asked Oct 2, 2024

by Sachin Soma

8.0k points

1 answer

0 votes

195k views

Compound formula for hydronitric acid

Donlelek asked Oct 2, 2024

by Donlelek

7.9k points

2 answers

2 votes

91.0k views

"Which element(s) is/are reduced in the following reaction? FeO(s) + CO(g) → Fe(s) + CO₂(g)

Clement Herreman asked Oct 2, 2024

by Clement Herreman

8.8k points

1 answer

1 vote

102k views

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