Question

Which statement is true for both traditional and modern families in the Spanish-speaking world?
(1 point)
Responses

Mothers work outside the home.
Mothers work outside the home.

The family unit is very important.
The family unit is very important.

Children move out of their parents’ home when they graduate high school.
Answer
A chemistry class is experimenting with iodine to see which common white powder items will react and make the iodine change color. Which item listed will have a chemical reaction with iodine?(1 point)
Responses

baking soda
baking soda

powdered sugar
powdered sugar

cornstarch
cornstarch

salt
Answer
When performing a scientific investigation on an unknown substance, how can an indicator help you determine if the substance is a starch?(1 point)
Responses

The indicator will change the smell of the substance.
The indicator will change the smell of the substance.

The indicator will change the color of the substance.
The indicator will change the color of the substance.

The indicator will change the taste of the substance.
The indicator will change the taste of the substance.

The indicator will change the state of the substance.
Answer
A student has an unknown powder and wants to determine what it is. Based on appearance, the student believes it is baking soda. When performing the vinegar test, what can the student expect to happen if it is baking soda?(1 point)
Responses

it will bubble and foam
it will bubble and foam

it will crystallize into a sugar-like substance
it will crystallize into a sugar-like substance

it will turn into a solid glass-like substance
it will turn into a solid glass-like substance

it will turn a blue-black color
Answer
A student is performing a Benedict’s test on an unknown substance. The student adds the reagent (the chemical required to make a color change), and nothing happens. Which conclusion can the student make?(1 point)
Responses

The test was inconclusive because the student needed to also test with iodine or vinegar.
The test was inconclusive because the student needed to also test with iodine or vinegar.

The substance is glucose based.
The substance is glucose based.

The test was inconclusive because the student forgot to add heat.
The test was inconclusive because the student forgot to add heat.

The substance is not glucose based.
Answered by GPT 3.5
The family unit is very important.
Answered by GPT 3.5
baking soda
Answered by GPT 3.5
The indicator will change the color of the substance.
Answered by GPT 3.5
it will bubble and foam
Answered by GPT 3.5
The test was inconclusive because the student needed to also test with iodine or vinegar.