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3 years ago

List two common acids that are not harmful to the body when ingested and a product in which each is used.

1 answer:

6 0

Not all acids are harmful to the body. Some acids are called dietary acids, that is, we take then in our diets. Examples of this is citric acid and lactic acid. Citric acid is found in oranges, limes, lemons, etc. Lactic acid is found in milk. Lactic acid is used in the industrial production of milk while citric acid is used in the industrial production of fruit drinks such as Ribena drink.

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Give the nuclear symbol for the isotope of gallium, ga, that contains 40 neutrons per atom. Replace the question marks with the

Cerrena [4.2K]

The nuclear symbol of an element have three parts namely:

the symbol of an element
mass number of the element
atomic number of the element

The general representation is as:

$_{Z}^{A}X$

where X is the chemical symbol of the element, A is mass number of the element that is total number of neutrons and protons in the nucleus of an atom, and Z is atomic number of the element that is number of protons in the atom.

Element = Gallium, $Ga$ (given)

Number of neutrons = 40 (given)

Let the nuclear symbol be $_{?}^{?}Ga$ . So, we need to determine the values of "?" in the symbol.

Atomic number of Gallium, $Ga$ = 31

Since, atomic number = Number of protons.

So, number of protons of Gallium, $Ga$ = 31

Mass number = number of protons + number of neutrons

Substituting the values:

Mass number = $31+40 = 71$

So, the nuclear symbol is $_{31}^{71}Ga$ .

7 0

4 years ago

In which Earth system does the rock cycle take place?

e-lub [12.9K]

Answer:

geosphere

Explanation:

geo means rocks this is the area

hope this helps dude

6 0

3 years ago

Read 2 more answers

DENIUS [597]

Answer:

Mark me as brainliest pls

Explanation:

similarities: Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal element

differences: A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. ... Animal cells simply have a cell membrane, but no cell wall.

5 0

3 years ago

2.2 liters at 20 degrees Celsius if the pressure doesn’t change what is the new temperature at 2.6 liters

Mamont248 [21]

Based on the question, it is evident that this question rests on the premise of Charle's Law, which essentially states that temperature is proportional to volume once pressure and mass remain constant.

Thus by Charle's Equation: $\frac{ V_{1} }{ T_{1} } = \frac{ V_{2} }{ T_{2} }$

Since the initial volume = 2.2 L; the initial temperature = 20 C; and the final volume = 2.6 L,
then V₁ = 2.2 L; T₁ = 20 C; V₂ = 2.6 L and what we would be
finding is T₂ (the final/new temperature)

Now, $T_{2} = \frac{(V_{2}) (T_{1}) }{V_{1}}$

⇒ $T_{2} = \frac{(2.6 L) (20 ^{o} C) }{2.2 L}$

⇒ $T_{2} = 23.64 ^{o}C$

∴ the new temperature is ≈ 23.6 °C

7 0

3 years ago

F O R 50 P O I N T S !!!

nika2105 [10]

Answer:

You would put the 4 quantum numbers corresponding to the electrons being described above

Explanation:

Quantum numbers refer to electrons, so I'll assume you mean the electron number that would correspond with the atomic number of the element. Quantum numbers are basically like an address for electrons, giving us information about the location of an electron from most general to most specific.

8 0

3 years ago