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3 years ago

A dogs ability to sit and roll over on command is an instinct. True or false

Chemistry

1 answer:

vovangra [49]3 years ago

8 0

Answer:

100% false

Explanation:

instinct is something they are born knowing how to do and sitting and rolling over is something you have to train them to do:)

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The leaves of the rhubarb plant contain high concentrations of diprotic oxalic acid (hooccooh) and must be removed before the st

VLD [36.1K]

Chemical reaction (dissociation) 1: C₂O₄H₂(aq) ⇄ C₂O₄H⁻(aq) + H⁺(aq).
Chemical reaction (dissociation) 2: C₂O₄H⁻(aq) ⇄ C₂O₄²⁻(aq) + H⁺(aq).
c(C₂O₄H⁻) = c(H⁺) = x.
c(C₂O₄H₂) = 0.0269 M.
pKa₁ = 1.23.
Ka₁ = 10∧(-1.23) = 0.059.
Ka₁ = c(C₂O₄H⁻) · c(H⁺) / c(C₂O₄H₂).
0.059 = x² / (0.0269 M - x).
Solve quadratic eqaution: x = c(H⁺) = 0.02 M.
pH = -log(0.02 M) = 1.7.

3 0

3 years ago

The measurement of how much mass is contained in a given volume is called what?

Ira Lisetskai [31]

The formula for measuring density is Density = Mass/Volume, or D=M/V. The / means “per” or “for each,” which in math is the same as “divided by.”

7 0

3 years ago

Bill sets up an experiment to determine and predict the velocity of a marble at the end of a track. He uses an electronic balanc

Nuetrik [128]

Answer:

Explanation:

USATestPrep

8 0

2 years ago

HELPP ANSWERSSS!!!!

dusya [7]

Answer:

answer is

Explanation:

Gallium because it has the properties which you have mentioned

8 0

3 years ago

The pOH of a solution of KOH is 11.30. What is the [H*] for this solution?

Sloan [31]

Answer: The concentration of hydrogen ions for this solution is $1.99 \times 10^{-3}$ .

Explanation:

Given: pOH = 11.30

The relation between pH and pOH is as follows.

pH + pOH = 14

pH + 11.30 = 14

pH = 14 - 11.30

= 2.7

Also, pH is the negative logarithm of concentration of hydrogen ions.

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

Substitute the values into above formula as follows.

$pH = -log [H^{+}]\\2.7 = -log [H^{+}]\\conc. of H^{+} = 1.99 \times 10^{-3}$

Thus, we can conclude that the concentration of hydrogen ions for this solution is $1.99 \times 10^{-3}$ .

4 0

3 years ago