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The H₂ produced in a chemical reaction is collected through water in a eudiometer. If the pressure in the eudiometer is 760.0 torr and the vapor pressure of water under the experimental conditions is 19.

Chris Farr asked Dec 15, 2024

by Chris Farr

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1 answer

5 votes

71.4k views

Thick, in-compressible, potassium rich fluid that fills _____.

Caelum asked Dec 15, 2024

by Caelum

7.8k points

1 answer

2 votes

157k views

Which molecule is easier to break down amylose or amylopectin?

Jozcar asked Dec 15, 2024

by Jozcar

7.1k points

1 answer

3 votes

48.9k views

What laboratory result warrants immediate intervention? A) Elevated white blood cell count B) Slight decrease in hemoglobin C) Slightly elevated blood glucose level D) Mildly increased liver enzymes

Paynd asked Dec 15, 2024

by Paynd

7.6k points

1 answer

4 votes

180k views

Which is an example of variation in a structural adaptation of an individual in a population? A. the thickness of a bear’s fur B. the size of a deer herd C. the hibernation of a squirrel D. a wren’s yearly

Derek Gathright asked Dec 15, 2024

by Derek Gathright

7.8k points

2 answers

4 votes

210k views

With bases, the lower pH, the ________(stronger or weaker?) the base.

Ahmed Elshafei asked Dec 15, 2024

by Ahmed Elshafei

8.4k points

1 answer

5 votes

73.0k views

Which of the gases in air are elements explain how you can tell

David Wesby asked Dec 15, 2024

by David Wesby

8.0k points

1 answer

4 votes

142k views

0.7g of iron combine directly with 0.4 g of sulphur to form FeS. If 2.8 g of Fe are dissolved in dil HCL and excess of Na₂S solution are added.4.4g of solution is precipitated. Prove that these data illustrate

Vikram Dattu asked Dec 15, 2024

by Vikram Dattu

8.8k points

1 answer

1 vote

28.1k views

All else equal, fewer compounding periods results in which of the following? 1) Higher interest rate 2) Lower interest rate 3) Higher future value 4) Lower future value

Askvictor asked Dec 15, 2024

by Askvictor

7.4k points

1 answer

0 votes

188k views

You start with a 3.865 g sample of salt. Options: A. Add water to dissolve the salt. B. Heat the salt to change its form. C. Mix the salt with sugar. D. Measure the density of the salt.

Sergey Vakulenko asked Dec 15, 2024

by Sergey Vakulenko

8.2k points

1 answer

1 vote

135k views

The strong attraction that holds atoms together in a metallic bond is the result of a. Positively charged cations and negatively charged electrons. b. Metal atoms sharing electrons to satisfy their octet.

Alex Varga asked Dec 15, 2024

by Alex Varga

7.4k points

1 answer

4 votes

68.1k views

Determine the amount of precipitate product formed. a. when 110.00 grams of Iron b.Chlorate is reacted with excess Sodium Hydroxide.

Stuzzo asked Dec 15, 2024

by Stuzzo

8.9k points

1 answer

4 votes

72.7k views

Two buffers are prepared by adding an equal number of moles of formic acid (HCOOH) and sodium formate (HCOONa) to enough water to make 1.00 L of solution. Buffer A is prepared using 1.00 mol each of formic

Rutvik Kanbargi asked Dec 15, 2024

by Rutvik Kanbargi

8.4k points

1 answer

3 votes

210k views

For the reaction 2NO(g)+O₂(g) ⇌ 2NO₂(g) at a certain temperature, the equilibrium concentrations were found to be [NO₂]= 3.3 x 10⁻³ M, [ O₂ ] = 1.2 x 10⁻² M, and [NO] = 2.0 x 10⁻³ M. Calculate the value

Ioannis Potouridis asked Dec 15, 2024

by Ioannis Potouridis

8.7k points

1 answer

5 votes

73.0k views

An element crystallizes in the body-centered cubic unit cell. It has a molar mass of 120.4 g/mol and an atomic radius of 1.45 × 10^(-8) cm. What is the density of the element? a) 2.43 g/cm³ b) 4.86 g/cm³

Wjandrea asked Dec 15, 2024

by Wjandrea

8.1k points

1 answer

2 votes

61.9k views

After you obtain a sample with an in-line sampler, how many seconds should elapse before disassembling the sampler? a. 30. b. 60. c. 90. d. 120

Ljwobker asked Dec 15, 2024

by Ljwobker

8.8k points

1 answer

4 votes

157k views

If 10 cm³ of hydrogen gas were sparked with 20 cm³ of oxygen, calculate the volume of residual gas after cooling. a. 25 cm³ of O2 b. 5 cm³ of O2 c. 15 cm³ of O2 d. 10 cm³ of O2

Jayla asked Dec 15, 2024

by Jayla

8.3k points

1 answer

5 votes

106k views

Calculate the amount of 0.1 M base needed to neutralize 10,000 liters of pH 6.0 water. The base is Sodium Hydroxide - NaOH. a) 10 moles b) 100 moles c) 1000 moles d) 10000 moles

Felix Lapalme asked Dec 15, 2024

by Felix Lapalme

8.1k points

1 answer

5 votes

66.9k views

If the solubility of KCl in 100 mL of H,O is 34 g at 20°C and 43 g at 50 °C, label each of the following solutions as unsaturated, saturated, or supersaturated. If more solid is added than can dissolve

Pooja K Bhatt asked Dec 15, 2024

by Pooja K Bhatt

7.4k points

1 answer

0 votes

152k views

Which of the following elements has the highest electronegativity? a) Sr b) Mg c) Ca d) Ba

Minh Triet asked Dec 15, 2024

by Minh Triet

7.9k points

1 answer

4 votes

68.6k views

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