CHEMISTRY HIGH SCHOOL

What is produced as a lead-acid battery is discharged?a. Acid
c. Electrolytes
b. Lead sulfate
d. Zinc oxide

Answers

Answer 1

Answer: Lead sulfate is produced as a lead acid battery is discharged. Hope this helped!

Answer 2

Answer:

Answer:

Explanation:

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Find the element that makes milk good for your health. Is it a metal, nonmetal or metalloid?

Answers

Answer is Ca which is a metal.

Explanation: Milk is composed of many elements such as Calcium (Ca), Magnesium(Mg), Phosphorus(P), Potassium (K), Zinc(Zn) ans Selenium(Se). The major component present is Ca.

Calcium present helps in the formation of bones and teeth and maintaining it to keep healthy.

Elements which can loose electrons easily to obtain a stable configuration is called as a metal.

Calcium is a metal as it can easily loose 2 electrons to obtain a stable configuration.

$Ca\rightarrow Ca^(2+) +2e^-$

Final answer:

Calcium, a metal, is the element in milk that makes it beneficial for health. It contributes to healthy bones, teeth, and the proper functioning of various body organs. Metalloids or semimetals like boron or silicon are not responsible for the health benefits of milk.

Explanation:

The element that makes milk good for health is Calcium. Calcium is a metal that is needed by the body for healthy bones, teeth, and proper function of the heart, muscles, and nerves. It is a representative metal that shows good conduction of heat and electricity. Milk is a primary source of Calcium, which is why it is considered beneficial for health.

On the other hand, elements such as boron, silicon, germanium, arsenic, antimony, and tellurium are considered metalloids or sometimes semimetals, which exhibit properties between metals and nonmetals. However, these are not the elements responsible for the health benefits of milk.

Learn more about Calcium in Milk

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What is the word equation for molecules of magnesium reacting with molecules of oxygen to produce molecules of magnesium oxide?magnesium + magnesium oxide = oxygen
magnesium + oxygen =magnesium oxide
magnesium oxide = magnesium
magnesium + oxygen magnesium + oxygen

Answers

Answer: magnesium + oxygen =magnesium oxide

Explanation: When Magnesium reacts with the molecules of oxygen , Magnesium oxide is produced.

Mg (s) + O (g) → MgO (s)

In this equation, both magnesium and oxygen are present in its elemental state.

Magnesium is present in solid form and oxygen is present in gaseous form.

The Bonding between the Magnesium and the oxygen is purely IONIC bonding as Magnesium loses its 2 valence electrons to complete its octet and oxygen gains its electrons to make its electron count 8 in the valence shell.

Answer: (B) Magnesium + oxygen =magnesium oxide

Explanation:

What is the mass in grams of 2.0 moles of NO2

Answers

Answer:

The mass of 2 moles of NO₂ is 92 grams.

Explanation:

Given that,

Number of moles, n = 2 moles

We need to find the mass of 2 moles of NO₂. We know that the number of moles is given by the formula as :

$n=(m)/(M)$

m is the given mass

M is the molar mass of NO₂, $M=14+16* 2=46\ g$

$m=n* M\n\nm=2* 46\n\nm=92\ g$

So, the mass of 2 moles of NO₂ is 92 grams. Hence, this is the required solution.

Molar mass NO₂ = 46.0 g/mol

1 mole -------- 46.0 g
2.0 moles ----- ?

Mass (NO₂) = 2.0 x 46.0 / 1

=> 92.0 g

hope this helps!

Can someone pls help me I appreciate it

Answers

Answer:

b, e, f

Explanation:

What will most likely happen when two bromine atoms bond together?

Answers

Bromine is a chemical element in the periodic table with atomic number 35 and mass 79.9 units. When two bromine atoms are brought together they are likley to form a bromine molecule that will consist of the two orginal atoms bound together by a single covalent bond.

Ionic bonding is the entire exchange of valence electron(s) between particles. It is a kind of substance security that creates two oppositely charged particles. In ionic bonds, the metal loses electrons to wind up plainly an emphatically charged cation, though the nonmetal acknowledges those electrons to end up noticeably a contrarily charged anion.

Which subatomic particles orbit the nucleus