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ch4aika [34]
2 years ago
13

Question 2 of 45

Chemistry
2 answers:
sweet [91]2 years ago
4 0

Answer:

6 I think lol hope this helps

Leya [2.2K]2 years ago
3 0

Carbon has 6 neutrons, 6 protons and 6 electrons.

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Can someone help me with questions 8 and 9 plz. I will really appreciated it
puteri [66]

Answer:

8. A boat, cars, airplanes

9. It's safer to practice techniques on life sized models of human organs than practicing on an actual human. If you mess up on a model it doesn't matter, messing up on a human can put their life at risk.

5 0
3 years ago
A public service announcement is created to encourage people to briefly stop using their wireless devices. Which justify the rea
geniusboy [140]

Answer:

A C D on edj

Explanation:

3 0
3 years ago
An isotope has an atomic number of 32 and contains 31 neutrons. What is the mass number of this isotope?
____ [38]
Mass Number quantifies the number of protons and neutrons in the atom. Electrons are so small that they do not even matter in the calculation. Protons and Neutrons are approximately 1 A. Atomic Number refers to where the atom is on the periodic table, such as Hydrogen being Atomic Number 1, but also quantifies the number of protons. In your situation the atomic number is 32 meaning it is Germanium but also meaning it has 32 protons. When we add the number of protons and number of neutrons to find the mass number we do 32 (protons) + 31 (neutrons) to get a total mass number of 63. 63 is your answer.
7 0
3 years ago
Does the variable increase(1) or decrease(1) under the described conditions?
EastWind [94]

Answer:

Explanation:

Decreasing the volume of a contained gas will increase its pressure, and increasing its volume will decrease its pressure. In fact, if the volume increases by a certain factor, the pressure decreases by the same factor, and vice versa. Volume-pressure data for an air sample at room temperature are graphed in Figure 5.

Because the volume has decreased, the particles will collide more frequently with the walls of the container. ... When the volume decreases, the pressure increases. This shows that the pressure of a gas is inversely proportional to its volume. This is shown by the following equation - which is often called Boyle's law.

The kinetic energy of the gas molecules increases, so collisions with the walls of the container are now more forceful than they were before. As a result, the pressure of the gas doubles. Decreasing the temperature would have the opposite effect, and the pressure of an enclosed gas would decrease.

For a fixed mass of gas at constant temperature, the volume is inversely proportional to the pressure. That means that, for example, if you double the pressure, you will halve the volume. If you increase the pressure 10 times, the volume will decrease 10 times.

Temperature, pressure, volume and the amount of a gas influence its pressure.

Gay Lussac's Law - states that the pressure of a given amount of gas held at constant volume is directly proportional to the Kelvin temperature. If you heat a gas you give the molecules more energy so they move faster. This means more impacts on the walls of the container and an increase in the pressure.

i really hope some of this helped i would put more but its a lot too type

5 0
3 years ago
Much to everyone’s surprise, nitrogen monoxide (NO) has been found to act as a neurotransmitter. To prepare to study its effect,
SVEN [57.7K]

Answer: 0.0043mole

Explanation:Please see attachment for explanation

3 0
3 years ago
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