Recent questions in Chemistry

Question

10. Indicate whether the following properties increase or decrease from top to bottom down a group on the periodic table. a. atomic radius: ____________________ b. Valence electrons: ____________________

Traver asked Oct 6, 2024

by Traver

8.1k points

1 answer

0 votes

183k views

When encountering a pesticide leak or spill during the course of an application, the applicator should treat the incident as: A. A normal result of pesticide applications B. An immediate response in which

Ximet asked Oct 6, 2024

by Ximet

8.5k points

1 answer

3 votes

152k views

the half-life of strontium-90 is 29 years. how long (in yr) will it take a 90-milligram sample to decay to a mass of 50.4 mg? (round your answer to the nearest whole number.)

Cruz Jean asked Oct 6, 2024

by Cruz Jean

8.0k points

1 answer

1 vote

133k views

What mass of pure aluminum can be extracted from 655g aluminum oxide

Koba asked Oct 6, 2024

by Koba

8.3k points

2 answers

1 vote

18.0k views

Which substance has the lowest vapor pressure at 75°C?

Evgnomon asked Oct 6, 2024

by Evgnomon

8.1k points

1 answer

0 votes

162k views

(SA) What is a Hydronium Ion? (How is it made and the formula)

Fadzly Othman asked Oct 6, 2024

by Fadzly Othman

8.6k points

1 answer

2 votes

212k views

Convert 0.672ft to millimeters. This is the chart given

Appsum Solutions asked Oct 6, 2024

by Appsum Solutions

7.8k points

1 answer

2 votes

187k views

What is the coefficient for O₂ when the following combustion reaction of a fatty acid is properly balanced? C₁₈H₃₆O₂ + __ O₂ → __ CO₂ + __ H₂O 1) 9 2) 26 3) 8 4) 27 5) 1

Rabra asked Oct 6, 2024

by Rabra

8.7k points

1 answer

5 votes

98.6k views

If a sample of gas at 37.1 oC and 717 torr occupies 18.1 L of space, then what would be the pressure (in torr) of the gas if the temperature drops to 10.5 oC and volume increases to 37 L?

Zayquan asked Oct 6, 2024

by Zayquan

7.9k points

1 answer

3 votes

188k views

uppose you were confused about which of the two containers held standard NaOH and which held vinegar. Which of the following would be the safest way to decide the contents of each diluted container? a.

Sangcheol Choi asked Oct 6, 2024

by Sangcheol Choi

8.8k points

1 answer

5 votes

100k views

The initial volume of 345 mL with initial concentration of a 1.6 M NaCI solution is reduced to final volume of 250 mL, what is the final concentration? M1V1=M2V2 O A. 1.16 M O B. 53906 M O C. 2208 M O

Rex Whitten asked Oct 6, 2024

by Rex Whitten

6.8k points

1 answer

2 votes

185k views

What is the folding into the overall 3D conformation?

Pedro Nasser asked Oct 6, 2024

by Pedro Nasser

8.5k points

1 answer

3 votes

180k views

Which solution should have the lowest vapor pressure? question 7 options: 0.10 m c₁₂h₂₂o₁₁ 0.10 m kno₃ 0.10 m cacl₂ 0.10 M LiPO

Tomaskazemekas asked Oct 6, 2024

by Tomaskazemekas

7.6k points

1 answer

3 votes

140k views

What will be the concentration of H2SO4 using the following data: 10 cm³ of the solution required 19.80 cm³ of 0.01 NaoH for the neutralization? A. 0.0099 mol/L B. 0.0198 mol/L C. 0.099 mol/L D. 0.198

Jonas Wouters asked Oct 6, 2024

by Jonas Wouters

8.4k points

1 answer

1 vote

144k views

Write the Family Name for: i) Most reactive Metalsii) Least Reactive NONMetals a) Alkali Metals, Noble Gasesb] Alkaline Earth Metals, Noble Gases c} Alkali Metals, Halogensd} Alkaline Earth Metals,

Egbrad asked Oct 6, 2024

by Egbrad

8.2k points

1 answer

2 votes

152k views

How many grams of iron are formed by the reaction 6.0g al with excess iron oxide?

Asumaran asked Oct 6, 2024

by Asumaran

8.1k points

1 answer

1 vote

200k views

A 1 m telescope can collect a given amount of light in 1 hour. Under the same observing conditions, how much time would be required for a 7 m telescope to perform the same task?

Nathan Strutz asked Oct 6, 2024

by Nathan Strutz

8.1k points

1 answer

2 votes

19.1k views

Calculate the molarity of sodium carbon- ate solution, comaining 0.53 g of sodium carbonate dissolved in 200 mL of the solution.

Oliver Gray asked Oct 6, 2024

by Oliver Gray

7.4k points

1 answer

1 vote

177k views

Write a brief description of what occurs as the excited carbon atom returns to the ground state

Kodemi asked Oct 6, 2024

by Kodemi

8.3k points

1 answer

0 votes

162k views

What do most quantitative methods for urobilinogen involve its reaction with what to form a red color?

Vlad Povalii asked Oct 6, 2024

by Vlad Povalii

8.5k points

1 answer

1 vote

10.5k views

Page:

« prev
1
...
913
914
915
916
917
918
919
...
1000
...
next »

Ask a Question

Recent questions in Chemistry

Other Questions