Ask question

Ask question

All categories

3 years ago

8

#1: Which scientist is credited with developing the orbital model of the atom?

1 answer:

CaHeK987 [17]3 years ago

4 0

<span>Niels Henrik David Bohr is the scientist credited with developing the orbital model of the atom. He was Danish physicist who made foundational contributions to understanding atomic structure and quantum theory. He received the Nobel Prize in Physics in 1922</span>

You might be interested in

Type in the name of the following compounds. Be sure to use the periodic table if needed.

Snowcat [4.5K]

the answer is Sulfur dioxide

8 0

3 years ago

Read 2 more answers

Is sulfur dioxide a compound, mixture or element? Thanks!

horsena [70]

It is a compound because a compound is two or more different elements chemically combined.

5 0

2 years ago

98 POINTS! MUST SHOW YOUR WORK for Brainliest!

Annette [7]

1 mole has 6.02*10^23 molecules in it.

1 nickel (II) chloride molecule, NiCl2, has 1 Ni atom in it.

so 1 mole of nickel (II) chloride molecule has 1 mole of Ni atom in it.

so 100 moles of nickel (II) chloride molecule has 100*6.02*10^23

= 6.02*10^25 Ni atom in it.

5 0

3 years ago

Read 2 more answers

An astronaut has a mass of 60kg. Calculate their weight When they are on the surface of the moon.

IceJOKER [234]

Answer:

I think 0kg because they are flying.

7 0

3 years ago

What amount of heat is released when the temperature of 450.0 g of a

Molodets [167]

Answer:

$\boxed {\boxed {\sf 4038.48 \ Joules}}$

Explanation:

Since we are given the mass, specific heat, and change in temperature, we should use this formula for heat:

$q=mc\Delta T$

The substance's mass is 450.0 grams, the specific heat is 1.264 J/g°C, and the change in temperature is 7.1 °C.

$m= 450.0 \ g \\c= 1.264 \ J/g \textdegree C\\\Delta T= 7.1 \ \textdegree C$

Substitute the values into the formula.

$q= (450.0 \ g)(1.264 \ J/g \textdegree C)(7.1 \ \textdegree C)$

Multiply the first 2 values together. The grams will cancel out.

$q= 568.8 \ J/ \textdegree C (7.1 \ \textdegree C)$

Multiply again. This time, the degrees Celsius cancel out.

$q= 4038.48 \ J$

<u>4038.48 Joules</u> of heat energy are released.

5 0

3 years ago