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Otrada [13]
3 years ago
7

A student combines 34 grams of one chemical and an unknown amount of another chemical in a closed system. A chemical reaction oc

curs and the mass of the products is 116 grams. How much of the unknown chemical was used in the reaction? *
Chemistry
1 answer:
Stells [14]3 years ago
6 0
Answer:

82 grams

Step by step:

116-34=82
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Density of distilled water?? What is the density of distilled water???
MAXImum [283]
The density is one gram per mL, so 1.
3 0
3 years ago
What is Kb for CH3NH2(aq) + H2O(1) CH3NH3(aq) + OH (aq)?
statuscvo [17]

Answer:

Kb for CH₃NH₂ (methylamine) is 4.4 × 10⁻⁴

Hope that helps.

8 0
4 years ago
5. Forces (or actions) always come in pairs. They<br> are____and_____
azamat

Answer:

equal and opposite

Explanation:

The size of the forces on the first object equals the size of the force on the second object. The direction of the force on the first object is opposite to the direction of the force on the second object

3 0
2 years ago
What is the difference between an orbit in the Bohr model of the hydrogen atom and an orbital in the quantum mechanical model
adelina 88 [10]

Answer:

See explanation

Explanation:

In Bohr's theory, electrons are found in specific regions in space called orbits. These orbits are also called energy levels. An electron may move from one energy level to another by absorbing or emitting energy.

In the wave mechanical model, electrons are not found in a particular region in space according to Heisenberg's uncertainty principle.

We rather define a certain region in space where there is a high probability of locating the electron. This region in space where there is a high probability of locating the electron is called an orbital.

Hence, in the Bohr's model of the atom,electrons can surely be found in orbits while in the wave mechanical model, the orbital is a probability function that describes a region in space where an electron may be found.

4 0
3 years ago
A shipping container is 9 meters long, 4 meters tall and 3 meters wide. It has a mass of 3,000 kilograms.what is the density of
Rina8888 [55]

The shipping container have a density of 27.77 kg/m³.

Explanation:

The formula for density is:

density = mass / volume

volume of the container = 9 m × 4 m  × 3 m

volume of the container = 108 m³

density of the container = 3000 kg / 108 m³

density of the container = 27.77 kg/m³

Learn more about:

density

brainly.com/question/952755

brainly.com/question/6838128

#learnwithBrainly

8 0
3 years ago
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