Answer:
Some of the physical and chemical properties of magnesium are:
-The term ‘magnesium’ is derived from the Greek word magnesia, which refers to the name of the place from where it was extracted.
-Magnesium is closely related to manganese and magnetite.
-About 2.1% of the Earth’s crust contains magnesium. This makes magnesium the 6th most found element.
-The biggest deposits of magnesium is found in the seawater. It has been calculated by scientists that a cubic mile of seawater contains about 6 million tons of this element
2nd answer:
Physical Properties of Magnesium: ”I’m a highly stable element, so you can count on me”
Chemical Properties of Magnesium: ”I love to travel but I do corrode aluminum so we won’t be flying off on adventures in airplanes planes anytime soon
Explanation:
Hope this helps you out! UwU
Answer:
A
Explanation:
With chemical reactions, there are various factors that affect the rate of the reaction. One of these is temperature.
When you raise the temperature, the reaction will move faster. Why? Temperature is directly correlated with the kinetic energy (basically, the energy that makes the particles move). Higher temperatures mean higher kinetic energies. Particles with higher kinetic energies move faster, which makes them more likely to collide. When collisions occur more frequently, the reaction follows through more quickly.
Thus, when Julissa warms the solutions, she will see that bubbling and white solid formation (the products of the reaction) occus faster. So, the answer is A.
Hope this helps!
Answer:
0.5mol/L
Explanation:
First, let us calculate the number of mole NaOH = 23 + 16 + 1 = 40g/mol
Mass of NaOH from the question = 30g
Number of mole = Mass /Molar Mass
Number of mole = 30/40 = 0.75mol
Volume = 1.5L
Active mass = mole/Volume
Active mass = 0.75mol/1.5L
Active mass = 0.5mol/L
Basic Information
Name:<span> Lanthanum </span>
Symbol:<span> La </span>
Atomic Number:<span> 57 </span>
Atomic Mass:<span> 138.9055 amu </span>
Melting Point:<span> 920.0 °C (1193.15 K, 1688.0 °F) </span>
Boiling Point:<span> 3469.0 °C (3742.15 K, 6276.2 °F) </span>
Number of Protons/Electrons:<span> 57 </span>
Number of Neutrons:<span> 82 </span>
Classification: Rare Earth
Crystal Structure:<span> Hexagonal </span>
Density @ 293 K:<span> 6.7 g/cm</span>3
Color:<span> white
</span>
Answer:
it's a i just took the test
YAY :D
Explanation:
