All categories

3 years ago

What is the similarity between teeth and eggshells?

2 answers:

6 0

Eggshells have a similar chemical composition to our tooth enamel, making them react similarly with other chemicals. This can help us understand what stains tooth enamel. When we brush an eggshell with fluoridated toothpaste, it strengthens the shell and protects it from acid, just like it does for our tooth enamel.

topjm [15]3 years ago

3 0

Explanation:

Because they share a similar composition, similar chemicals affect their structures in positive or negative ways. For example, fluoride – a staple in many dental practices – strengthens both enamel and eggshells and helps protect them from acids. Acids weaken and break down both substances. Scientists find this particularly concerning given that the ocean is growing increasingly acidic. They fear this may weaken the eggs of some marine species and harm their chance of survival. Most dentists recommend limiting aggressively acidic foods and beverages such as soft drinks.

You might be interested in

The C_7 compound which gives 3 signals in the broadband proton-decoupled ^13C spectrum could be:______

dimaraw [331]

Answer:

d) 2, 4-Dimethylpentane

Explanation:

2, 4-Dimethylpentane is the c_7 compound that gives 3 signals in the broadband proton decoupled ¹³C spectrum.

This compound is classified as an alkane and it's chemical formula is [(CH3C)2CH]2CH2. It is a hydrocarbon that has no odor. When it is combined with other gas compounds it gives high octane fuel.

4 0

3 years ago

According to Newton's Second Law of Motion, a decrease in mass will increase acceleration

elena55 [62]

is that the answer?????

8 0

3 years ago

Read 2 more answers

2H20 Which is the reactant

Lisa [10]

Answer:

the reactants are 2h2 and 02. the products are 2h20

have a great day my friend ;)

<333

3 0

3 years ago

take a bucket and fill it with water put a lot of different thing in it make separate list of the articles which sinks in the wa

Lera25 [3.4K]

Explanation:

Things that float=paper,plastic bottle,rubber, polythene bag, balloon

Things that sinks =needle,stone,spoon,pen,soap

4 0

3 years ago

An intravenous infusion is to contain 15 mEq of potassium ion and 20 mEq of sodium ion in 500 mL of 5% dextrose injection. Using

Studentka2010 [4]

Answer:

To supply the required ions it is necessary to inject 5,6mL of 6g/30mL solution and 131,1 mL of 0,9% solution.

Explanation:

1mEq of sodium are 59mg of NaCl and 1mEq of potassium are 75mg KCl

in intravenous infusion 15 mEq of K are:

15x75mg KCl = 1,125g of KCl

And 20 mEq of Na are:

20x59mg NaCl = 1,18g of NaCl

To supply the potassium ion it is necessary to inject:

1,125g of KCl× $\frac{30mL}{6g}$ = 5,6mL of 6g/30mL solution

And, to supply the sodium ion it is necessary to inject:

1,18g of NaCl× $\frac{100mL}{0,9g}$ = 131,1 mL of 0,9% solution

I hope it helps!

6 0

4 years ago