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Naily [24]
3 years ago
5

O H H H H T A K E T A K E T H A T R U B B E R O F F F * C K T H A T H * E M E A T T O M E A T

Chemistry
2 answers:
alukav5142 [94]3 years ago
3 0

I just needed the points. Have a nice day luv!!!!!!!!!

✨❤️◑﹏◐❤️✨

Oduvanchick [21]3 years ago
3 0

Answer:

seems legit

Explanation:

i'm looking for math answer but found this instead, sick

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What is<br>metal refinning<br>​
nikklg [1K]

Answer:

It is the way of cleaning of impurities present in metals

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Copper and silver are examples that will form what bond
Helen [10]

A metallic bond since both are pure metals but are not ionic



6 0
3 years ago
A student prepares a weak acid solution by dissolving 0.2000 g HZ to give 100. mL solution. The titration requires 33.5 mL of 0.
nexus9112 [7]

Answer:

a)M=0.20/(0.335*0.1025)= 0.20/ 0.034 = 5.88 g/mol

b) if 0.100g is used instead of 0.200g

M = 0.1 / 0.034 = 2.94  hence the molar mass will be too low

Explanation:

0.2000 gHZ gives  100ml acid solution

33.5 ml of 0.1025 M NaOH  is required to prepare it

the moles = mass / molar mass

mass = 0.200 gHZ

moles = 0.0335*100 * 0.1025 = 0.034

therefore molar mass = mass / moles

                                  M=0.20/(0.335*0.1025)= 0.20/ 0.034 = 5.88

if 0.100g is used instead of 0.200g

M = 0.1 / 0.034 = 2.94  hence the molar mass will be too low

3 0
3 years ago
A radioactive material, with half-life of six months, has 100 thousand unstable nuclei.
goldfiish [28.3K]

Answer:

See Explanation

Explanation:

Given that;

N/No = (1/2)^t/t1/2

Where;

No = amount of radioactive isotope originally present

N = A mount of radioactive isotope present at time t

t = time taken

t1/2 = half life

N/1000=(1/2)^3/6

N/1000=(1/2)^0.5

N = (1/2)^0.5 * 1000

N= 707 unstable nuclei

Since the value of the initial activity of the radioactive material was not given, the activity of the radioactive material after three months is given by;

Decay constant = 0.693/t1/2 = 0.693/6 months = 0.1155 month^-1

Hence;

A=Aoe^-kt

Where;

A = Activity after a time t

Ao = initial activity

k = decay constant

t = time taken

A = Aoe^-3 *0.1155

A=Aoe^-0.3465

3 0
3 years ago
What happens when two positively charged objects move closer to each other?
Katena32 [7]

Answer: Objects with like charge repel each other.

6 0
2 years ago
Read 2 more answers
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