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xeze [42]
4 years ago
10

Jia observes that adding a solution of sodium hydroxide to a clear liquid turns the liquid pink. She makes a hypothesis about wh

y the liquid changed color. Which characteristic is least important for her hypothesis to have?
Chemistry
1 answer:
Oksana_A [137]4 years ago
3 0

The question is incomplete, the complete question is;

Jia observes that adding a solution of sodium hydroxide to a clear liquid turns the liquid pink. She makes a hypothesis about why the liquid changed color.

Which characteristic is least important for her hypothesis to have?

A)ability to be tested

B)based on the opinion of her classmates

C)ability to be proven incorrect

D)based on her current knowledge

Answer:

B)based on the opinion of her classmates

Explanation:

A hypothesis is a supposition or tentative explanation put forward based on minimal evidence. It sometimes sets the pace for further investigation.

Hypothesis is always based on empirical observation and not on popular opinion, hence the opinion of Jia's classmates is least important in Jia's formulation of a hypothesis.

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When triglycerides are metabolized, ___ is/are converted to pyruvate or glucose, whereas ____ is/are converted to acetyl CoA.
Fynjy0 [20]

Answer:

Glycerol;Pyruvate

Explanation:

Metabolism of triglycerides occur through a process known as lipolysis. During triglyceride metabolism, <u>Glycerol </u><u>is converted to pyruvate or glucose through glycolysis or gluconeogenesis respectively</u>. Glycerol enters these pathways by being converted to glycerol-3-phosphate (reaction catalyzed by glycerol kinase) which can in turn be converted to dihydroxyacetone phosphate (reaction catalyzed by glycerol-3-phosphate dehydrogenase).

NOTE: Dihydroxyacetone phosphate is a compound/substrate found in both glycolysis and gluconeogenesis.

The end product of glycolysis is pyruvate; this <u>pyruvate, under aerobic condition is converted to acetyl coA</u> (reaction catalyzed by pyruvate dehydrogenase complex), an intermediary of the Tricarboxylic acid cycle.

7 0
3 years ago
A ball has a volume of 9.0 liters and is subjected to a pressure of 3.5 atmospheres when its temperature is 74 °C. According to
vodka [1.7K]
To determine the number of moles of the gas, we need to relate moles to pressure, temperature and volume. To simplify things, we assume the gas is ideal so we use the ideal gas equation PV=nRT.

PV = nRT
n = PV / RT
n = 3.5 (9.0) / 0.08205 (74+273.15)
n = 1.1059 mol
6 0
4 years ago
What determines the strength of a dipole dipole force?
Reil [10]

Answer:

The more polar the molecules, the stronger the force. The more hydrogen in the molecule, the stronger the force.

Explanation:

I hope this helps and please ask if you need further help!

5 0
3 years ago
the value of acceleration due to gravity on a point 10,000 kilometers about sea level is about 1.49 meters/second. how much will
ss7ja [257]

Try this

15.6 newtons

8 0
3 years ago
A 0.199 M weak acid solution has a pH of 3.99. Find Ka for the acid.
Alex17521 [72]

Answer:

Ka = ( About ) 5 x 10^ - 8

Explanation:

Let us first identify the dissociation equation for this weak acid,

HA ⇌ ( H+ ) + A¯

Knowing this, we can tell what the equilibrium expression is, respectively,

Ka = ( [ H+ ] [ A¯ ] ) / [ HA ]

_________________________________________________

Now let us use the given pH 3.99 to calculate [ H+ ], knowing that pH = −log [H+],

3.99 = - log[H+],

[H+] = 10 ^ - 3.99,

[H+] = ( About ) 1 * 10^-4 M

Substitute known values into the equilibrium expression,

Ka = [( 1 x 10^ - 4 ) ( 1 x 10^ ¯4 )] / 0.199,

Ka = ( About ) 5 x 10^ - 8

3 0
3 years ago
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