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aivan3 [116]
3 years ago
13

Write down the formula for B example: Hydrogen + Fluorine = Hydrogen Fluorine help

Chemistry
2 answers:
Tom [10]3 years ago
5 0

Answer:

P³⁻ + Cl⁻ --> PCl₃

Explanation:

PCl₃: phosphorus trichloride. prefix in front of chloride is "tri"–meaning three.

Elena L [17]3 years ago
5 0

Answer:

phosphorus + chlorine = phosphorus trichloride

(He asked for word equation)

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Which of the following is the best example of water changing from a liquid to a gas?
ycow [4]

Answer:

c

Explanation:

hope this helps! ^-^

3 0
3 years ago
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How many kilograms of iron can be obtained from 100 kilograms of Fe203
ANTONII [103]

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754

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2 years ago
Ethanol absorbs more energy than water because it has a lower heat capacity <br><br> True or false?
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5 0
3 years ago
The element californium (cf) sells for $1000 per µg. assuming 6.02 x 1023 atoms of cf have a mass of 251 grams, how many atoms o
saveliy_v [14]

Answer:- 2.40*10^1^0atoms

Solution:- It is a simple unit conversion problem. We could solve this using dimensional analysis.

We know that, 1 US dollar = 100 cents

1 cent  = 1 US penny

So, 1 US dollar = 100 US pennies

1g=10^6\mu g

Let's make the set up starting with 1 penny as:

1penny(\frac{$1}{100pennies})(\frac{1\mu g}{$1000})(\frac{1g}{10^6\mu g})(\frac{6.02*10^2^3atoms}{251g})

= 2.40*10^1^0atoms

Therefore, we can bye 2.40*10^1^0atoms of Cf in one US penny.

3 0
3 years ago
The radius of an atom of gold (Au) is about 1.35 Å.
Eduardwww [97]
Two radius of an atom is equal to the diameter. Adding up all the diameter of  the atoms, it should be equal to 9.5 mm. Therefore, we simply convert the units to the same units then divide 1.35 A to 9.5 mm. We calculate as follows:

no. of atoms = 0.0095 m / 1.35x10^-9 m = 7037037 atoms 

Hope this answers the question. Have a nice day.
6 0
3 years ago
Read 2 more answers
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