Missing question:
<span>a) mass.
b) diameter.
c) distance from the Sun.
d) density.
Answer is: </span>d) density.
Earth has the highest density of all eight planets in the Solar System, density of the Earth is 5.514 g/cm³<span>.
</span>The four inner planets,<span> closest to the Sun, are all </span>terrestrial planets, which means they are composed of silicate rocks and metals and four outer planets<span> are </span>gas giants, they<span> are composed of hydrogen, helium and water.
</span>Earth is third planet from the Sun.
Atoms with neutrons, protons, and electrons. Only the neutron has no electrical charge; protons and electrons are the other particles that are electrically charged.
<h3>What do you know about atoms? explain.</h3>
The smallest component of ordinary stuff that makes up a chemical element is an atom. Atoms that are neutral or ionized make up every solid, liquid, gas, and form of plasma. Atoms are incredibly tiny, measuring typically 100 picometers across. Due to quantum effects, they are so small that it is impossible to predict their behavior with sufficient accuracy using classical physics, as would be the case, for example, if they were tennis balls.
Each atom is made up of a nucleus and one or more electrons that are linked to it. One or more protons and a significant number of neutrons make up the nucleus. Only the most prevalent type of hydrogen is neutron-free. The nucleus of an atom contains more than 99.94% of its mass. The electric charges of the protons are positive, those of the electrons are negative, and those of the neutrons are zero. The atom is electrically neutral if the number of protons and electrons is equal.
Learn more about Chemical elements here:-
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Answer:
Interacting with animals has been shown to decrease levels of cortisol (a stress-related hormone) and lower blood pressure. Other studies have found that animals can reduce loneliness, increase feelings of social support, and boost your mood.
Explanation:
5g NaOH x 1 mol NaOH/ 39.99g NaOH = 0.125 mol NaOH
