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3 years ago

Soil comes in different colors.

Chemistry

1 answer:

ollegr [7]3 years ago

7 0

Answer: yes they come in different colors.

Explanation:

Most shades of soil is mostly black,brown,red,gray,and white the color of soil and other properties including texture, structure, and consistency are used to distinguish and identify soil.

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For a solar eclipse to occur which of the following alignments is necessary? A. The moon is located along a straight line betwee

Aloiza [94]

For a solar eclipse t occur;

C. The moon is located from a line between the sun and earth

8 0

3 years ago

Ionic compounds form because ___ charges attract

notsponge [240]

Answer:

Ionic bonding is the attraction between positively- and negatively-charged ions. These oppositely charged ions attract each other to form ionic networks (or lattices). Electrostatics explains why this happens: opposite charges attract and like charges repel.

Explanation:

6 0

3 years ago

The carbon-carbon double bond in ethene is ________ and ________ than the carbon-carbon triple bond in ethyne.

lbvjy [14]

Answer:

weaker and longer

Explanation:

Since there are 3 bonds in ethyne in comparision with the 2 bonds of ethyne between carbon atoms, they are attracted more to each other → the bond gets shorter . And since there are one more bond that supports the union → the bond gets stronger

thus the carbon-carbon double bond in ethene is weaker and longer than the carbon-carbon triple bond in ethyne

3 0

3 years ago

A 20g sample of iron at a temperature of 120oC is placed into a container of water. There are 300 milliliters of water in the co

galben [10]

Answer:

30.63 °C will be the final temperature of the water.

Explanation:

Heat lost by iron will be equal to heat gained by the water

$-Q_1=Q_2$

Mass of iron = $m_1=20 g$

Specific heat capacity of iron = $c_1=0.444 J/g^oC$

Initial temperature of the iron = $T_1=120^oC$

Final temperature = $T_2$ =T

$Q_1=m_1c_1\times (T-T_1)$

Volume of water = 300 ml

Density of water = 1 g/mL

Mass of water= $m_2=300 mL\times 1 g/mL = 300 g$

Specific heat capacity of water= $c_2=4.184 J/g^oC$

Initial temperature of the water = $T_3=30^oC$

Final temperature of water = $T_2$ =T

$Q_2=m_2c_2\times (T-T_3)$

$-Q_1=Q_2$

$-(m_1c_1\times (T-T_1))=m_2c_2\times (T-T_3)$

On substituting all values:

we get, T = 30.63°C

30.63 °C will be the final temperature of the water.

4 0

3 years ago

A 1.900 g sample of C6H12 is burned in an excess of oxygen. What mass of C)2 and H20 should be obtained

Alexeev081 [22]

The balanced chemical reaction is:

C6H12 + 9O2 = 6CO2 + 6H2O

We are given the amount of C6H12 to be used for the reaction. THis will be the starting point for the calculations.

1.900 g C6H12 ( 1 mol C6H12/ 84.18 g C6H12) ( 6 mol CO2 / 1 mol C6H12) (44.01 g /mol ) = 5.96 g CO2
1.900 g C6H12 ( 1 mol C6H12/ 84.18 g C6H12) ( 6 mol H2O / 1 mol C6H12) (18.02 g /mol ) = 2.44 g H2O

6 0

3 years ago