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Ksju [112]
3 years ago
13

Convert 25 mg to unit HG

Chemistry
1 answer:
Degger [83]3 years ago
6 0
Your answer would be 250,000
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It helps them figure out more in dept about education.
5 0
3 years ago
Zinc metal (Zn) will react with aqueous hydrochloric acid (HCI aq) to produce aqueous zinc chloride (ZnCl2 aq) and hydrogen gas
Debora [2.8K]

Answer:

5

Explanation:

Here, we want to get the equation of the reaction between Hydrochloric acid and Zinc metal

Zinc metal displaces the hydrogen from hydrochloric acid to form zinc chloride

We have the equation of reaction as:

2HCl_{(aq)}\text{ + Zn}_{(s)}\text{ }\rightarrow\text{ ZnCl}_{2(aq)}\text{ + H}_{2(g)}

3 0
11 months ago
Which symbol in a chemical equation separates the reactants from the products ?
Lana71 [14]

Answer:

Explanation:

The arrow symbol in a chemical equation separates the reactants from products. A chemical reaction is process in which chemical changes leads to the formation of products from reactants.

4 0
3 years ago
Read 2 more answers
I NEED HELP PLEASE ANSWER
Jobisdone [24]
Sulfur has 6 electrons, so we put 6 in the first spot. 
Oxygen has 6 electrons too, but since there are 3, we would multiply 6 times 3 , which equals 18, then add that too.
The 2 is added because there is that negative 2 at the top of the formular, which indicates the presence of two extra valence electrons.

the equation would be

6 + 18 + 2  = 26


4 0
3 years ago
What volume, in milliliters, of calcium chloride 15.0 M stock solution would you use to
Kamila [148]

<u>Answer:</u> The volume of stock solution of calcium chloride required is 10 mL.

<u>Explanation:</u>

A solution consists of solute and solvent. A solute is defined as the component that is present in a smaller proportion while the solvent is defined as the component that is present in a larger proportion.

To calculate the amount of solute needed, the formula used is:

C_1V_1=C_2V_2             ....(1)

where,

C_1\text{ and }V_1 are the concentration and volume of stock solution of calcium chloride

C_2\text{ and }V_2 are the concentration and volume of diluted solution of calcium chloride

Given values:

C_1=15.0M\\C_2=0.300M\\V_2=500mL

Plugging values in equation 1:

15.0\times V_2=0.300\times 500\\\\V_2=10mL

Hence, the volume of stock solution of calcium chloride required is 10 mL.

7 0
2 years ago
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