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3 years ago

Which of the following is not an essential element for healthy plant growth?

Chemistry

1 answer:

GREYUIT [131]3 years ago

8 0

Answer:

A oxygen

Explanation:

For plant growth nitrogen, potassium and phosphorous are the three main elements needed. oxygen is expelled from plants. Plants doesn't need oxygen

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What is the average Volume of a single penny from the total 25 penny data?

mojhsa [17]

Answer:

1.16 mL

Explanation:

Assume the data show that 25 pennies have a total volume of 29.00 mL.

$\text{Average volume} = \dfrac{\text{29.00 mL}}{25} = \textbf{1.16 mL}$

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2 years ago

Draw the Lewis structure, including unshared pairs, of the following molecules. Carbon has four bonds in the compound.

Galina-37 [17]

Explanation:

Refer to attachment.

Propane
Methanol (methyl alcohol)
methyl fluoride
ethyl fluoride

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2 years ago

Which laws can be combined to form the ideal gas law?

Aleksandr [31]

Answer:

charles' law ,Avogadro law and boyles law

4 0

2 years ago

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Is a solution that has a pH of 7.52 acidic or basic?

Luda [366]

Answer:

on the PH scale anything with a ph of 1-7 is acidic, anything 7-14 is basic, in this case the solution mentioned in the question is basic.

8 0

2 years ago

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Recall that your hypothesis is that these values are the fraction of atoms that are still radioactive after n half-life cycles.

Savatey [412]

$0.5^{n}$ means 0.5 raise to the power of n. "To the power of" means an action of multiplication of 0.5 to n times.

The different values of n are given in the table. Substituting these values:

For A:

n = 1 (given)

$0.5^{n} = 0.5^{1} = 0.5$

For B:

n = 2 (given)

$0.5^{n} = 0.5^{2} = 0.5\times 0.5 = 0.25$

For C:

n = 3 (given)

$0.5^{n} = 0.5^{3} = 0.5\times 0.5\times 0.5 = 0.125$

For D:

n = 6 (given)

$0.5^{n} = 0.5^{6} = 0.5\times 0.5\times 0.5\times 0.5\times 0.5\times 0.5= 0.015625$

For E:

n = 8 (given)

$0.5^{n} = 0.5^{8} = 0.5\times 0.5\times 0.5\times 0.5\times 0.5\times 0.5\times 0.5\times 0.5= 0.00390625$

Hence, the values are:

A = 0.5

B = 0.25

C = 0.125

D = 0.015625

E = 0.00390625

4 0

2 years ago

Read 2 more answers