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NikAS [45]
3 years ago
14

What is a physical change and how do you know it happened?

Chemistry
2 answers:
Ivan3 years ago
8 0
A physical change is when somebody smashes a computer screen. It's physical because the looks are changing of the computer. Hope this helps!
DedPeter [7]3 years ago
6 0
A physical change is defined as "a usually reversible change in the physical properties of a substance,as size or <span>shape" so its basically a change of a substance that you can see. You know a physical change has </span>occurred if a substance has changed size or shape or in a way that you can physically see.
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Cis-platin is a chlorine-containing chemotherapy agent with the formula pt(nh3)2cl2. What is the mass of one mole of cis-platin?
marishachu [46]

Cis-platin is a chemotherapy agent used to treat and kill cancerous cells in patients. One mole of cis-platin has a mass of 300.06 grams/mol. Thus, option B is correct.

<h3>What is a chemotherapy agent?</h3>

A chemotherapy agent is an alkylating agent that is used to treat cancer and is given to reduce the infection or to relieve the symptoms. Cis-platin (Pt(NH₃)₂Cl₂) is one of the chemotherapy agents that treat lung, ovarian, and neck cancer, etc.

The mass of one mole of Cis-platin is calculated as,

Moles = mass ÷ molar mass

Where,

Moles = 1 mole

The molar mass of (Pt(NH₃)₂Cl₂) is calculated as,

195.06 g/mole + 2(17g/mole) + (35.5)2 = 300.06 grams

Substituting values to calculate mass:

Mass = Molar mass × moles

= 300. 06  × 1

= 300.06 grams/mol

Therefore, option B. 300.06 gm/mol is the mass of Cis-platin.

Learn more about chemotherapy agents here:

brainly.com/question/14260402

#SPJ4

Your question is incomplete, but most probably your full question was, Cis-platin is a chlorine-containing chemotherapy agent with the formula pt(nh3)2cl2. What is the mass of one mole of cis-platin?

  • 488.91 g/mol
  • 300.06 g/mol
  • 492.37 g/mol
  • 283.02 g/mol
  • 2860.5 g/mol
8 0
2 years ago
In rabbits, the gene for black fur is dominant (F), but the gene for white fur
Pepsi [2]
A white rabbit would therefore have (ff)

If a trait is recessive, then it can only be expressed if both alleles (individual letters) are recessive (lowercase).
7 0
3 years ago
In the electrolysis of molten lead bromide, what is the product at the anode?
Kisachek [45]

Answer:

it is the second one. Lead

5 0
3 years ago
sarah measures out 151 grams of SO2. how many moles is this? Express your answer to three significant figures. ​
svp [43]

150 g SO₂ = 2.36 mol SO₂


M_r = 32.06 + 2×16.00 = 32.07 + 32.00 = 64.06


Moles of SO₂ = 151 g SO₂ × [1 mol SO₂/64.06 g SO₂] = 2.36 mol SO₂



4 0
3 years ago
I need help with these two true or false statements!!
olga2289 [7]
They are both true glad i could help
5 0
3 years ago
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