He accepted value for the density of liquid mercury is 13.5336 g/mL. Four scientists measure the density of liquid mercury in their individual laboratories. The most accurate measurement is made by

Answers

Answer 1

Answer:

Answer;

-The most accurate measurement is made by;

C. Dr. Smith, who measures 13.54 g/mL.

Explanation;

-The absolute density (how much a given volume of the substance weighs) of mercury is 13593 kilograms per cubic meter. It can also be stated as 13.56 g/cm^3. Accuracy measures the nearness of a calculation to the true value.

-In this case; the measurement by Dr. Smith is near the true value 13.56 g/cm^3, as compared to the measurements by other scientists.That is Dr. Chopra, who measures 13.487 g/mL. Dr. Thompson, who measures 13.5 g/mL. and Dr. Tyler, who measures 13.9336 g/mL.

Answer 2

Answer: The most accurate measurement is made by Dr. Smith. He measures this as 13.54 g/ml.

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What is the name of the giant bubble of charged gas that surrounds the sun?a. heliosphere
b. galaxy
c. Kuiper Belt
d. Oort Cloud

Answers

The correct answer is A. The gin bubble of charged gas around the sun is called the heliosphere. Basically, the heliosphere is a sphere of helium. This is a region where the solar wind is said to have an influence.

LusterMalleable
Ductile
Conductor
Solid at room temperature

Which element could be described by the list of properties above?

A) magnesium

B) mercury

C) neon

D) phosphorus

Answers

The answer is A) Magnesium.
Hope this helps and let me know if you need more help!

Hey there

The correct answer is (A)

= magnesium

A student increases the temperature of a 200 cm3 balloon from 60⁰C to 180⁰C. What should the new volume of the balloon be? Use the formula: V2 = (V1 T2)/T1Question 3 options:

100 cm3

236 cm3

272 cm3

600 cm3

Answers

According to Charle's law, the new volume of the balloon will be 600 cm³ if pressure is kept constant.

What is Charle's law?

Charles law is an experimental gas law which provides description about the behavior of gases which tend to expand on heating.It states that, at constant pressure, the temperature is in direct proportion with the volume that is,V∝T or V₁/T₁=V₂/T₂.The relation between volume and temperature is linear as the temperature increases volume also increases.

The graph of volume versus temperature is a straight line passing through the origin.The law was proposed by Jacques Charles in relation to ideal gases.

Substitution of the given values in the given formula, V₂= 200×180/60= 600 cm³.

Thus, the new volume of the balloon will be 600 cm³ if pressure is kept constant.

Learn more about Charle's law,here:

brainly.com/question/16927784

#SPJ6

Let x represent the new volume:

$(200)/(60) =(x)/(180)$

cross multiply:

$(36,000)/(60x)$

then simplify to get 600cm^3

Hope this helps :)

The mass number of an isotope of uranium is 238, and its atomic number is 92. Which symbol best represents this isotope of uranium?

Answers

Answer: The isotope will be represented by symbol $^(238)_(92)U$ .

Solution:

The isotope of an element is represented by:

$^(A)_(Z)X$

X = Symbol of an element

Z = Atomic Number of that element = Total number of electrons or protons

A = atomic mass of that element = Z+ total number of neutrons

So the uranium isotope with atomic mass of 238 and atomic number of 92 will be written as:

$^(238)_(92)U$

Answer:

B. 238/92 U

Explanation:

Correct answer on edge 2022

The average atomic mass of oxygen is 15.9994 amu. The atomic masses of its three isotopes are as follows: O-16: 15.995 amu; O-17: 16.999 amu; O-18: 17.999 amu Which isotope is most likely to have the greatest abundance in nature?

Answers

The average atomic mass of an atom would be the closest to the mass of its most commonly found isotope, because if another isotope would be more common, the average would "shift" to be closer to the most common isotope.

So the answer is O-16: its mass is almost the same as the average atomic mass.

Answer:

0-16

Explanation:

Which activity is the best demonstration of J. J. Thomson’s use of creativity in his work?

Answers

The plum pudding model of the atom by the scientist Sir Joseph John Thompson or J.J. Thompson. It was theorized after the discovery that electrons are present in the atom. In this model, the atom is composed mainly of electrons. It was describe as plum pudding because the electrons are dispersed within the atom. John Dalton discovered the atom. Ernest Rutherford discovered the half – life of an atom and Neils Bohr explain the quantum mechanics. So the answer is J.J. Thompson.

interpreting the results of his experiments

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A nuclear fission reaction and a nuclear fusion reaction are similar because both reactions(1) form heavy nuclides from light nuclides(2) form light nuclides from heavy nuclides(3) release a large amount of energy(4) absorb a large amount of energy

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1) Write the word and symbol equation to show what happens when water is added to Calcium Oxide.2) Write word and symbol equations for the thermal decomposition of limestone.