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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(Question 9) (10 points)

nevsk [136]

For numbers less than 0.1 such as 0.06, the zeros to the right of the decimal point but before the first nonzero digit show the decimal place of the first digit.

The number of significant figures in a measurement often show the degree of accuracy of the measurement. We ascertain the number of significant figures from the first non - zero digit in the figure.

Given the figure 0.06, there is only one significant figure present. The zeros to the right of the decimal point but before the first nonzero digit show the decimal place of the first digit.

Learn more: brainly.com/question/13386983

4 0

2 years ago

For the gaseous reaction of carbon monoxide and chlorine to form phosgene (COCL2)

Natasha_Volkova [10]

This is an incomplete question, here is a complete question.

For the gaseous reaction of carbon monoxide and chlorine to form phosgene (COCl₂)

Perform the following calculations:

A) Calculate ΔS at 298 K (ΔH= -220 kJ/mol and ΔG= -206 kJ/mol

B) Assuming that ΔS and ΔH change little with temperature, calculate ΔG at 450 K.

Answer :

(a) The value of ΔS at 298 K is, -0.0469 kJ/mol.K