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4 years ago

Which characteristic cannot be inherited?

Chemistry

2 answers:

lana66690 [7]4 years ago

4 0

Answer:

Knowledge of facts

Explanation:

All of these are inherited traits: Color, Height, and Shape

but Knowledge is a learnt trait

evablogger [386]4 years ago

3 0

Answer:

The knowledge of Facts

Explanation:

Knowledge cannot be inherited from your parents. It is something you obtain on your own. However, the color of an animals fur, the height of a plant, and the shape of a face are all passed down genetically.

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How many grams of copper are there in a sample if it displaces 0.980 L of water? The density of

natta225 [31]

The amount of copper in grams there are in water if it displaces 0.980 the density will be .294829

7 0

3 years ago

Which of the following statements is true?

frez [133]

Answer: D

Explanation: Convection transfers heat by movement such as air and water.

3 0

3 years ago

A tank at is filled with of sulfur tetrafluoride gas and of sulfur hexafluoride gas. You can assume both gases behave as ideal g

dangina [55]

The question is incomplete, the complete question is:

A 7.00 L tank at $21.4^oC$ is filled with 5.43 g of sulfur hexafluoride gas and 14.2 g of sulfur tetrafluoride gas. You can assume both gases behave as ideal gases under these conditions. Calculate the mole fraction and partial pressure of each gas. Round each of your answers to significant digits.

Answer: The mole fraction of sulfur hexafluoride is 0.221 and that of sulfur tetrafluoride is 0.779

Explanation:

The number of moles is defined as the ratio of the mass of a substance to its molar mass. The equation used is:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ ......(1)

For sulfur hexafluoride:

Given mass of sulfur hexafluoride = 5.43 g

Molar mass of sulfur hexafluoride = 146.06 g/mol

Putting values in equation 1, we get:

$\text{Moles of sulfur hexafluoride}=\frac{5.43g}{146.06g/mol}=0.0372mol$

For sulfur tetrafluoride:

Given mass of sulfur tetrafluoride = 14.2 g

Molar mass of sulfur tetrafluoride = 108.07 g/mol

Putting values in equation 1, we get:

$\text{Moles of sulfur tetrafluoride }=\frac{14.2g}{108.07g/mol}=0.1314mol$

Total moles of gas in the tank = [0.0372+ 0.1314] mol = 0.1686 mol

Mole fraction is defined as the moles of a component present in the total moles of a solution. It is given by the equation:

$\chi_A=\frac{n_A}{n_A+n_B}$ .....(2)

where n is the number of moles

Putting values in equation 2, we get:

$\chi_{SF_6}=\frac{0.0372}{0.1686}=0.221$

$\chi_{SF_4}=\frac{0.1314}{0.1686}=0.779$

Hence, the mole fraction of sulfur hexafluoride is 0.221 and that of sulfur tetrafluoride is 0.779

7 0

3 years ago

Carbon bonding is almost entirely _____. hydrogen covalent ionic chemical

Anna007 [38]

Carbon bonding is almost entirely COVALENT.

Carbon is an non metallic element with an atomic number of 6. The electronic configuration of carbon is 2,4. This configuration implies that carbon has four electrons in its outermost shell and it needs four more electron to attain the octet structure. Carbon normally strive to attain the octet structure by forming covalent bonds with other elements. Covalent bond is a type of chemical bond that involves sharing of electron pairs by the participating elements.

5 0

4 years ago

Read 2 more answers

Percent Composition Calculations

AysviL [449]

Answer:

$\boxed{\text{17.76 \% by mass}}$

Explanation:

$\text{The mass of one molecule of NH$_{3}$ is:}\\\text{14.01 u N + 3.024 u H = 17.034 u}\\\\\text{mass $\%$ H} =\dfrac{3.024}{17.034} \times 100 \%} =\textbf{17.76 \%}\\\\\text{Ammonia contains }\boxed{\textbf{17.76 \% H by mass}}$

5 0

3 years ago