How many aluminium atoms are there in the formula for aluminium nitrate ?
Answers
This is because aluminium has a 3+ charge and nitrate has a 1- charge, so you need 3 of them to balance out aluminium.
Therefore, you have one ion of aluminium.
Related Questions
An element has an atomic number of 30. How many protons and electrons are in a neutral atom of the element? A. 30 protons, 30 electrons B. 15 protons, 15 electrons C. 60 protons, 30 electrons D. 30 protons, 0 electrons
What volume change occurs to a 400.0 mL gas sample as the temperature increases from 22.0 °C to 30.0°C?
It's important to match your exercise shoes with the type of exercise in which you will be participating.
At higher elevations, the boiling point of water decreases, due to the decrease in atmospheric pressure. As a result, what conclusion could be drawn from the boiling egg?a.At higher elevations, it would take less time to hard boil an egg, because there is less atmospheric pressure. b. At higher elevations, it would take longer to hard boil an egg, because there is a lower boiling point, so the egg is boiling in water at a lower temperature. c. At higher elevations, it would take less time to hard boil an egg, because there is a lower boiling point. Therefore it would take less time to achieve the boiling point. d. At higher elevations, it would take longer to hard boil an egg, because it would take longer to achieve the boiling point.
b. chloride
c. sulfates
d. calcium
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The table salt is sodium chloride and oceans are rich in it.
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Object A at 40 degrees C and object B at 80 degrees C are placed in contact with each other. The heat flow will flow from the Object B to the object A because of temperature difference. To attain equilibrium, the heat flow must flow form a higher temperature to a lower temperature.
(2) the total number of protons in the atom, only
(3) the total number of protons and the total number of neutrons in the atom
(4) the total number of protons and the total number of electrons in the atom
Answers
Answer;
(4) the total number of protons and the total number of electrons in the atom
Explanation;
-Atomic number is the number of protons in the nucleus of an atom. An atom is made up of energy shells and the central nucleus. The energy shells contains electrons that are negatively charged while the nucleus contains protons (positively charged) and neutrons (neutral).
-In a neutral atom, the number of protons and electrons are equal, thus the atomic number would indicate the number of electron and protons in an atom. The sum of protons and neutrons on the other hand gives the mass number.
b.form a tsunami.
c.stay in the same place.
d.mix together in the water cycle.
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When different parts of the oceans are heated unevenly, this causes the water to A. move in convection currents
What happens when different parts of the oceans are heated unevenly?
When different parts of the oceans are heated unevenly, it leads to temperature variations within the water. Warm water tends to rise, creating convection currents. This movement is driven by the principle that warm fluids are lighter and, therefore, buoyant, while cooler fluids are denser and tend to sink. This process is analogous to the movement of air in the atmosphere.
So, the uneven heating of ocean waters results in the generation of convection currents, as warm water ascends and cooler water descends. This phenomenon plays a crucial role in redistributing heat and influencing climate patterns across the globe.
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Answer:
a
Explanation:
Answers
NaOH + HCl ---> NaCl + H₂O
stoichiometry of NaOH to HCl is 1:1
number of NaOH moles reacted - 0.1 mol/L x 0.054 L = 0.0054 mol
number of HCl moles reacted = number of NaOH moles reacted
since the molar ratio of acid to base is 1:1
therefore number of HCl moles reacted - 0.0054 mol
the number of moles of HCl in 125 mL - 0.0054 mol
therefore number of HCl moles in 1000 mL - 0.0054 mol / 125 mL x 1000 mL
number of moles of solute in 1000 mL is known as the molarity concentration
concentration of HCl is 0.0432 M
(2) 2.0 M (4) 0.75 M