How are journals helpful to scientists

Answers

Answer 1
Answer: They help keep track of notes and experaments

Related Questions

Check the statements that are a part of the Early Atomic Theory. a.Scientists believe that the atom is made up of elements. b.Atoms combine in whole number ratios to form compounds. c.Atoms cannot be created or destroyed during a chemical reaction.
Which is a characteristic property of acids? A-they, turn blue litmus paper red . B-they, turn red litmus paper blue. C-they tastes bitter D-they don't react with metals
An unknown compound contains only carbon, hydrogen, and oxygen (cxhyoz). combustion of 3.50 g of this compound produced 5.13 g of carbon dioxide and 2.10 g of water.how many moles of hydrogen, h, were in the original sample?
Which statement best explains why different gases effuse at different rates?At a given pressure, gas particles with smaller masses move faster. At a given pressure, gas particles with smaller masses move slower. At a given temperature, gas particles with smaller masses move faster. At a given temperature, gas particles with smaller masses move slower
You spot a friend walking on a moving walkway in an airport. You are not on the walkway and you want to keep up with her.At what speed do you need to walk?A. the speed of the walkway multiplied by the speed at which she is walkingB. the speed of the walkway minus the speed at which she is walkingC. the speed of the walkway plus the speed at which she is walking

At any given location, the physical properties of a substance do not change. a. True
b. False

Answers

It is true that at any given location, the physical properties of a substance do not change. 

Look at the image above then answer these questions:Which one is the correct answer? Why is it the correct answer?

Answers

Answer:

yes its correct, temperature is a measure of energy particles have, the more energy the faster they move and the higher the temp

Explanation:

What is the pH of an aqueous 0.032 M pyridine, (C5H5N)? (Kb for pyridine = 1.7 x 10–9)

Answers

pH + H₂O ⇋ [pOH]⁺ + OH⁻
 
Kb = [pOH⁺][OH⁻] / [ pH] = 1.7×10⁻⁹

Let x mol dissociate:

 [pOH
⁺] = [OH⁻] = x [pH] = 0.032 - x ≈ 0.032

[x] [x] / [0.032] = 1.7×10⁻⁹

x₂ = 0.032 * 1.7 x 10⁻⁹

x = 5.44 x 10⁻¹¹ = [OH⁻

pOH = -log [OH⁻] = -log[  5.44 x 10⁻¹¹] = 10.26

pH = 14.00 - pOH 

pH = 14.00 -  10.26

PH = 3.74

hope this helps!

The density of a liquid gold is 19.32 g/mL. If you were to fill a 2.000 liter soda bottle with gold what would the mass of the liquid be?

Answers

Answer:

38,640g

Explanation:

Since the density is in g/mL, we have to convert 2.000 liters to mil-liters to be able to successfully use the formula of M=V*D. Convert liters to mil-liters and you should have 2000mL in which you can plug into the equation of M= 2000mL*19.32g/mL, mL cancels, and you're left with 38,640g (here the significant figures are already in check).

Final answer:

The mass of liquid gold in a 2-liter soda bottle would be 38640 grams. This is calculated by multiplying the volume of the bottle (2 liters, or 2000 mL) by the density of liquid gold (19.32 g/mL).

Explanation:

Density characterizes how much mass is packed into a given volume. In this case, we know that the density of liquid gold is 19.32 g/mL. Since 1 Liter equals 1000 mL, Our soda bottle has a volume of 2.000 liters or 2000 mL. To determine the mass of the liquid gold in this volume, we perform a simple multiplication: density * volume = 19.32 g/mL * 2000 mL = 38640 grams.

So, if the 2-liter bottle is completely filled with liquid gold, the mass of the gold would be 38640 grams.

Learn more about Density here:

brainly.com/question/34199020

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Many chemical and toxic substances used in modern industry are flammable or combustible. true/false

Answers

Answer:

True

Explanation:

Many chemical and toxic substances used in modern industry are indeed flammable or combustible. These substances can pose significant safety hazards, especially in industrial settings, and require proper handling, storage, and safety measures to prevent fires and explosions. It is crucial to follow strict safety protocols and regulations when working with such materials to ensure the safety of workers and the environment.

Which list of solutions is arranged in order from highest boiling point to lowest boiling point?

Answers

In determining the boiling point of solutions, always take note of the number of ions that will dissociate in the solution. It does not depend on the nature of the substance. The greater the number of ions dissociated, the greater is the boiling point of the solution.