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3 years ago

Which choice best defines heredity?

Chemistry

1 answer:

Eddi Din [679]3 years ago

6 0

Answer:

B. the passage of genetic instructions from one generation to the next.

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Physical properties in 500 g of butter

Whitepunk [10]

<span>1. soft
2. yellowish white
3. greasy
4. smooth</span>

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3 years ago

Determine the number of constitutional isomers for Hexane and draw the structure for Hexane?

Akimi4 [234]

Answer:

MRCORRECT has answered the question

Explanation:

five isomers

"The five isomers of hexane are: hexane, 2-methylpentane, 3-methylpentane, 2,2-dimethylbutane, and 2,3-dimethylbutane. They are constitutional isomers because they each contain exactly the same number and type of atoms, in this case, six carbons and 14 hydrogens and no other atoms.

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4 years ago

ANALO387: Percent Water in a Hydrate

mina [271]

Answer:

$\large \boxed{37.77\,\%}}$

Explanation:

(1) Mass of hydrate

$\begin{array}{rcr}\text{Mass of crucible + hydrate} & = & \text{21.447 g}\\-\text{Mass of crucible} & = & \text{17.985 g}\\\text{Mass of hydrate} & = & \textbf{3.462 g}\\\end{array}$

(2) Mass of water

$\begin{array}{rcr}\text{Mass of crucible + hydrate} & = & \text{21.447 g}\\-\text{(Mass of crucible + anhydrous salt)} & = & \text{20.070 g}\\\text{Mass of water} & = & \textbf{1.377 g}\\\end{array}$

(3) Percent of water

$\begin{array}{rcl}\text{Percent of water}&=&\dfrac{\text{Mass of water}}{\text{Mass of hydrate}} \times 100 \%\\\\& = &\dfrac{\text{1.377 g}}{\text{3.462 g}} \times 100 \% \\\\& = &\mathbf{37.77 \%}\\\end{array}\\\text{The mass percent of water is $\large \boxed{\mathbf{37.77 \%}}$}$

5 0

3 years ago

The best definition of a proxy record is:

vovangra [49]

I believe the answer is option D !!

6 0

3 years ago

What is a responding variable

kondaur [170]

Answer:

A manipulated variable is also called an independent variable. A responding variable is a variable that the researcher predicts will change if the manipulated variable changes. A responding variable is also called a dependent variable.

5 0

3 years ago