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2 years ago

A .......... notifies you that danger is present if the directions are not followed.

Chemistry

1 answer:

maksim [4K]2 years ago

5 0

Answer:

A. Warning

Explanation:

Out of all said choices, the best choice would be warning since it would fit the sentence the most.

"A Warning notifies you that danger is present." compared to:

"A Hazard notifies you that danger is present."

"A Safety notifies you that danger is present."

"A Danger notifies you that danger is present."

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The ionic mobility of alkali metal ions in aqueous<br>solution is maximum for

matrenka [14]

Answer:

Rb+

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3 years ago

How easy can water pass through granite?

Margarita [4]

Immposibile because water cannot pass through granite

7 0

3 years ago

What name is given to a polymer where all of the substituents (i.e., the R groups) are in the same relative orientation (i.e., o

kirza4 [7]

Answer: isotactic

Explanation:

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3 years ago

Plz answer thx<br><br><br> How many moles are in 2.5 x 10^18 grams of water?

alex41 [277]

Answer:

$1.39\times 10^{17}$ moles of water in $2.5\times 10^{18} g$ of water.

Explanation:

Mass of water = $m = 2.5\times 10^{18} g$

Molar mass of water = M = 18 g/mol

Moles = n = $\frac{m}{M}$

$n=\frac{2.5\times 10^{18} g}{18 g/mol}=1.39\times 10^{17} moles$

So, there are $1.39\times 10^{17}$ moles of water in $2.5\times 10^{18} g$ of water.

3 0

3 years ago

Write the names and symbols for four elements in each of the following categories: (a) nonmetal, (b) metal, (c)metalloid.

Over [174]

Explanation:

Non-metals are the species that are electron deficient and they are able to accept one or more electrons from a donor atom in order to complete their octet.

For example, carbon (C), nitrogen (N), chlorine, (Cl), phosphorus (P) etc are all non-metals.

Metals are the species that contain more number of electrons in their valence shell and in order to attain stability they easily lose an electron.

For example, sodium (Na), lithium (Li), Beryllium (Be), Magnesium (Mg) etc are all metals.

Metalloids are the species that show properties of both metals and non-metals.

For example, Boron (B), Antimony (Sb), Silicon (Si) and Germanium (Ge) etc are metalloids.

5 0

3 years ago