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3 years ago

Which type of plant is this? Non-vascular Moss Perennial Vascular

Chemistry

2 answers:

Sergio [31]3 years ago

8 0

Perennial.? I think...

aivan3 [116]3 years ago

6 0

That looks like an Acacia tree on the savanna’s of Africa. Perennial plants live for many years. I think this tree survives for many years. Read about that type of tree to see if you come to that conclusion.

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a guy walks into a bar and sees a non-linear person. he says hey wt y=mx+b is this? he threw a sploddy gun grenade in the place.

Elan Coil [88]

Um I literally don’t know

8 0

2 years ago

Read 2 more answers

Define the term relative atomic mass, A.

Naily [24]

The mass of an atom and the equivalent of to the number of protons and neutrons in the atom

6 0

3 years ago

Farmers who raise cotton once used arsenic acid, H₃AsO₄, as a defoliant at harvest time. Arsenic acid is a polyprotic acid with

Stels [109]

Explanation:

The reaction equation will be as follows.

$H_{3}AsO_{4} \rightleftharpoons H_{2}AsO^{-}_{4} + H^{+}$

Hence, the expression for $K_{a}$ is as follows.

$K_{a} = \frac{[H_{2}SO^{-}_{4}][H^{+}]}{[H_{3}AsO_{4}]}$

Let us assume that the concentration of both $[H_{2}AsO^{-}_{4}]$ and $[H^{+}]$ is x.

$2.5 \times 10^{-4} = \frac{x \times x}{0.5}$

x = 0.01118034

This means that the concentration of $[H^{+}]$ is 0.01118034.

Since, we know that the relation between pH and concentration of hydrogen ions is as follows.

pH = $-log [H^{+}]$

= $-log (0.01118034)$

= 1.958

Thus, we can conclude that the pH of a 0.500 M solution of arsenic acid is 1.958.

6 0

3 years ago

Assuming the densities are the same as water, calculate the concentration in millimolar (mM) for all three reactant solutions, t

Marina86 [1]

Answer:

foatation

Explanation:

7 0

3 years ago

A weather map indicates that a low-pressure system is approaching a city. Attached to

timofeeve [1]

Answer:

The correct option is;

A warm front is approaching the city and temperatures will increase

Explanation:

A low pressure forms by the movement of air away from a particular spot such that the pressure reduces. The movement of air away from a spot occurs when there is a boundary of warm and cold air such that the air moves to maintain a uniform temperature.

Low pressure centers are associated with warm fronts, resulting in the fall of barometric pressure or observed low pressure and are characterized by a rise in temperature.

3 0

3 years ago