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irina1246 [14]
3 years ago
6

When using the scientific method which step comes last

Chemistry
1 answer:
MA_775_DIABLO [31]3 years ago
6 0

Answer:

proposing a hypothesis.

Explanation: Therefore the last step in the scientific method is proposing a hypothesis or obtaining a conclusion.

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Pls help me with this question thank you
klemol [59]
Mass times acceleration
6 0
3 years ago
The compound cisplatin, Pt(NH3)2Cl2, has been studied extensively as an antitumor agent.___K2PtCl4 (aq) + ___NH3 (aq)  ___Pt(NH
Lostsunrise [7]

Mass of cisplatin can be made : 144.6 g

<h3>Further explanation</h3>

Given

Reaction(unbalanced)

K2PtCl4 (aq) + ___NH3 (aq)  ___Pt(NH3)2Cl2 (s) + ___KCl (aq)

200 g of K2PtCl4

Required

mass of cisplatin  Pt(NH3)2Cl2

Solution

Balanced equation

K₂PtCl₄ (aq) + 2NH₃ (aq) ⇒Pt(NH₃)₂Cl₂ (s) + 2KCl (aq)

mol of K₂PtCl₄(MW=2.39+195+4.35.5=415 g/mol) :

mol = mass : Mw

mol = 200 : 415

mol = 0.482

From equation, mol ratio K₂PtCl₄ : Pt(NH₃)₂Cl₂ = 1 : 1, so mol Pt(NH₃)₂Cl₂ = 0.482

Mass of cisplatin Pt(NH₃)₂Cl₂(MW=195+2.14+6.1+2.35.5=300 g/mol) :

mass = mol x MW

mass = 0.482 x 300

mass = 144.6 g

8 0
3 years ago
What makes people more vulnerable to addition​
Dovator [93]
Do you mean addiction? Genetics can make people more vulnerable to addiction, but I’m not sure what it means to be venerable to addition lol
7 0
3 years ago
Which equation shows how to calculate how many grams (g) of KCI would be
Semenov [28]

Answer:

C or D

Explanation:

Hope it helped a little bit

3 0
3 years ago
Calculate the answer. Express it in scientific notation and make sure it has the correct number of significant figures. (2.45 x
Lerok [7]
The answer is 10,046,528.8 !
3 0
3 years ago
Read 2 more answers
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