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uysha [10]
2 years ago
8

Explain how you know the charge of a nickel ion given a formula and a name.

Chemistry
1 answer:
SVETLANKA909090 [29]2 years ago
6 0

godh i on equal to cubic square times water which equals picture of old schoocouple of large gloves but let’s come in that’s 2002 3.14
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A 9.79 mol sample of freon gas was placed in a balloon. Adding 3.50 mol of freon gas to the balloon increased its volume to 21.8
aivan3 [116]

Answer:

16.06 L was the initial volume of the balloon.

Explanation:

Initial moles of freon in ballon = n_1=9.79 mol

Initial volume of freon gas in ballon = V_1=?

Moles of freon gas added in the balloon = n = 3.50 mole

Final moles of freon in ballon = n_2=n_1+n=9.79 mol+3.50 mol=13.29 mol

Final volume of freon gas in ballon = V_2=21.8 L

Using Avogadro's law:

\frac{V_1}{n_1}=\frac{V_2}{n_2} ( at constant pressure and temperature)

V_1=\frac{V_2\times n_1}{n_2}=\frac{21.8 L\times 9.79 mol}{13.29 mol}=16.06L

16.06 L was the initial volume of the balloon.

4 0
2 years ago
Suggest two observations that would be made when rubidium is added to cold water.
tino4ka555 [31]

Answer:

1. Rubidium metal reacts very rapidly with water to form a colorless basic solution of rubidium hydroxide (RbOH) and hydrogen gas (H2).

2. Rubidium sinks because it is less dense than water. It reacts violently and immediately, with everything leaving the container. Rubidium hydroxide solution and hydrogen are formed.

6 0
2 years ago
100 POINTS!!!!<br><br> Please I need this page done lol
Alenkinab [10]

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okay.. Questions?????????

5 0
3 years ago
write the equilibrium expression for the base ionization of the weak base of methylamine, ch3 nh2 . hint: first write the balanc
svetlana [45]

CH3NH2 + HOH ==> CH3NH3^+ + OH^-Which molecule/ion accepts a proton. That is the base. Which molecule/ion donates a proton. That is the acid.

A stable subatomic particle known by the symbol for "proton"

e elementary charge, p, H+, or 1H+ having a positive electric charge. Its mass is 1,836 times greater than an electron's mass and just a little bit less than that of a neutron (the proton–electron mass ratio). "Nucleons" refers to protons and neutrons together, each of which has a mass of roughly one atomic mass unit (particles present in atomic nuclei).

Each atom. has a nucleus. that contains one or more protons. In order to keep the atomic electrons bound, they offer the central attractive electrostatic force. An element's defining characteristic, known as the atomic number, is the number of protons in the nucleus (represented by the symbol Z)

Learn more about proton here:

brainly.com/question/1252435

#SPJ4

4 0
1 year ago
How many moles of tin atoms are there in 250 grams of tin?
joja [24]

250gTi x (1mol/47.87 [molar mass]) =5.22247 moles

4 0
2 years ago
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