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nataly862011 [7]
3 years ago
5

Hey can u answer this pls

Chemistry
2 answers:
d1i1m1o1n [39]3 years ago
6 0

Answer:

DNA

Explanation:

A chromosome is made of a very long strand of DNA and contains many genes (hundreds to thousands). The genes on each chromosome are arranged in a particular sequence, and each gene has a particular location on the chromosome (called its locus).

Dmitry_Shevchenko [17]3 years ago
5 0
The answer to your question is DNA!!!!! :)
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Can anyone list me all the 8 groups of the periodic table , going in order of course?
Vlad [161]

Answer:

alkali metals

alkali earth metals

transition metals

non metals

noble gases

halogens

rare earth metals

Explanation:

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What is the mass, in grams, of 0.125 L of CO2 at STP? Question 4 options: 2.80 g 181 g 0.246 g 4.11 g
Zolol [24]
1) Use the fact that 1 mol of gas at STP occupies 22.4 liter

=> 1 mol / 22.4 l = x / 0.125 l => x = 0.125 l * 1 mol / 22.4 l = 0.00558 mol

2) Now use the molar mass of the gas

molar mass of CO2 ≈ 44 g / mol

Formula: molar mass = mass in grams / number of moles =>

mass in grams = molar mass * number of moles = 44 g/mol * 0.00558 moles

mass = 0.246 g

Answer: 0.246 g
7 0
3 years ago
which elements are nonmetals? (A) Silver, Copper, Zinc, Tin (B) Gallium, Zinc, Sulfur, Chlorine (C) Neon,Sulfur, Iodine, Xenon
stealth61 [152]

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4 0
3 years ago
Determine how many grams of solute and solvent you would need to prepare 225 g of 11.9%
Tomtit [17]

Answer:

m_{solute}=26.8g

Explanation:

Hello.

In this case, since the definition of by-mass percent is:

\%m/m=\frac{m_{solute}}{m_{solution}}*100\%

Whereas we know the percent as 11.9 % and the mass of the solution as 225g, so we compute the grams of solute as follows:

m_{solute}=\frac{\%m/m*m_{solution}}{100\%}\\ \\m_{solute}=\frac{11.9\%*225g}{100\%}\\ \\m_{solute}=26.8g

Best regards.

6 0
4 years ago
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