3 years ago

When the Florida summer brings hot temperatures, what seasonal changes can be seen in plants?

1 answer:

8 0

Summer also brings the rainy season and the threat of hurricanes. Florida native plants grow like crazy during the summer; grass needs to be cut once a week. If we do have a good rainy season, we have to cut grass every five days or so.

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A water sample consists of the following cadmium species and their percentages of the total cadmium concentration: Cd2 (36 %); C

Nata [24]

Answer:

61%

Explanation:

Cd2+ and CD(OH)2 both contain the Cd2+ specie which is chemically similar to Zn2+both being in the same group in the periodic table. Cd2+ is know to be toxic when absorbed together with Zn 2+ ions and will definitely be toxic to the aquatic species.

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3 years ago

Balance the 2 chemical equation below: 1) _____H2 + _____02 ---> _____H20 2) _____CH4 + _____Cl2 ---> _____CCl4 + _____HCl

sergij07 [2.7K]

Answer:

1.) 2H2 + O2 ---> 2H2O

2.) CH4 + 4Cl2 ---> CCl4 + 4HCl

Explanation:

In order to balance the equation, you have to make sure there are the same amount of each element on both sides.

Ex (#1). By adding the coefficients infront of H2 and H20, You now have 4 hydrogen's and 2 oxygens on the left side as well as 4 hydrogens and 2 oxygens on the right side.

Sorry if that's confusing, but hope this helps! :)

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3 years ago

A student pours 800.0 mL of a 3.000 molar solution of sodium hydroxide into a 2.00 liter volumetric flask and fills the flask up

hammer [34]

M1V1 = M2V2
M1 = 3.000 M
V1 = 0.8000 L
M2 = ?
V2 = 2.00 L

M2 = M1V1/V2 = (3.000 M)(0.8000 L)/(2.00 L) = 1.20 M

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2 years ago

HELP ASAP

Bezzdna [24]

A. I think sorry if it’s wrong

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