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2 years ago

What are two conclusions that Mendal made about his research on genetics

1 answer:

6 0

The two conclusions that Mendal made about his research on genetics depended on the law of segregation and law of independent assortment.

Explanation:

The “law of segregation” says that, pairing of genes (alleles) take place in each parent. During split up, one gene is only passed from each parent to the offspring. But which particular gene is passed is is not know and is completely up to chance.

The “law of independent assortment” states, from all pairs of gene each offspring receives different pair of gene independently. Thus, when a gene is inheritant at one location in a genome it is not necessary that it should influence the inheritance of a gene in another location.

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What is the molar mass of a gas which has a density of 0.00249 g/mL at 20.0 degrees celcius and 744.0 mm Hg?

creativ13 [48]

61.24 is the molar mass of a gas which has a density of 0.00249 g/mL at 20.0 degrees celcius and 744.0 mm Hg.

Explanation:

given that:

density = 0.00249 g/ml ( $\frac{mass}{volume}$ ) or 2.49 grams/litre

P = 744 mm Hg OR 0.978 atm

T = 20 Degrees or 293.15 Kelvin

R = 0.08206 Litre atm/mole K

molar mass =?

Formula used/

PV = nRT equation 1

here n is number of moles:

n = $\frac{mass}{atomic mass}$

putting the value of n and value of density in the equation 1:

PV = $\frac{mass}{molar mass}$ x RT

molar mass = $\frac{mass}{volume}$ x $\frac{RT}{P}$

= density x $\frac{RT}{P}$

= $\frac{2.49 x 0.08276 x 293.15}{0.978}$

= 61.24 is the molar mass of the gas.

8 0

2 years ago

Convert 78.9 kJ into calories Can you also explain how pls? ty

Naddik [55]

Explanation:

1 kJ = 238.85 cal and

1 cal = 0.004187 kJ

so it will be 78.9×238.85 = 18,844 calories

78.9 Kilojoules (kJ) = 18,844 Calories (IT) (cal)

3 0

2 years ago

True or false. A bond between a metal atom and a nonmetal atom is likely an iconic bond

vlada-n [284]

It is true...obviously

5 0

3 years ago

The _____ carries no electrical charge in the atom. electron proton gluon neutron

vovikov84 [41]

The proton has a positive charge and the election balances out the proton by being negatively charged. The neutral charge, meaning it is neither positively or negatively charged. A good way to remember is to think that the neutron is neutral.

6 0

2 years ago

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What is the gram formula mass of K?

rusak2 [61]

Answer:

6.4924249 × 10^-23 g you need to solve it

4 0

2 years ago

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