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VARVARA [1.3K]
3 years ago
5

Sex-linked disorders occur more frequently in males than females because males have two X chromosomes and females have two Y chr

omosomes. is this true or false?
Chemistry
2 answers:
Vilka [71]3 years ago
5 0
This is false because males have 1 X and 1 Y chromosome. It's females who have 2 X chromosomes. So, it's false.
zepelin [54]3 years ago
5 0
This is false because a male has an X and a Y chromosome while the female have 2 x chromosomes.
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Calculate the number of grams of CO that can react with 0.400 kg of Fe2O3.
aleksandr82 [10.1K]

Answer:

mass of CO = 210.42 g

mass in three significant figures = 210. g

Explanation:

Given data:

mass of Fe2O3 = 0.400 Kg

mass of CO= ?

Solution:

chemical equation:

Fe2O3 + 3CO → 2Fe + 3CO2

Now we will calculate the molar mass of  Fe2O3 and CO.

Molar mass of  Fe2O3 = (55.845 × 2) + (16 × 3) = 159.69 g/mol

Molar mass of CO = 12+ 16 = 28 g/mol

now we will convert the kg of Fe2O3 in g.

mass of Fe2O3 = 0.400 kg × 1000 = 400 g

number of moles of Fe2O3  = 400 g/ 159.69 g/mol = 2.505 mol

mass of CO = moles of Fe2O3 × 3( molar mass of CO)

mass of CO = 2.505 mol × 84 g/mol

mass of CO = 210.42 g

mass in three significant figures = 210. g

5 0
3 years ago
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P + O2 → P4O10 balance the equation
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4P + 502 -> P4O10 this is the answer
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2 years ago
Calculate the molarity of 22.5 g of MgS in 829 mL of solution
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Explanation

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Explanation:

3 0
3 years ago
The law of conservation of mass is applicable to
katrin2010 [14]

Answer:

The law of conservation of mass states that in a closed system, mass is neither created nor destroyed during a chemical or physical reaction. The law of conservation of mass is applied whenever you balance a chemical equation.

Explanation:

According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

The law of conservation of mass is useful for a number of calculations and can be used to solve for unknown masses, such the amount of gas consumed or produced during a reaction.

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