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4 years ago

Determining the pH of substances such as purple grape juice and catsup using test strips can be difficult. Why?

Physics

1 answer:

Charra [1.4K]4 years ago

4 0

Answer:

Because they would naturally dye the test strips in the colors violet and red, regardless of their pH values

(would really appreciate the brainliest)

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How many atoms are in something determines its

inn [45]

How many atoms are in something determines it "mass"

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3 years ago

Term used to describe a rock that is amorphous, or formless, consisting of a random arrangement of atoms rather than crystals.

sukhopar [10]

Answer:

Glassy texture

Explanation:

The rocks that are characterized by the absence of structure, shape, and size are usually referred to as the glassy texture. These rocks are comprised of atoms that are randomly oriented. These rocks are lacking in crystals because of their faster rate of cooling. It cools so fast that it does not get a sufficient amount of time to form crystals. For example, Obsidian.

This glassy textured rocks are found in the igneous types of rocks that are formed due to the cooling of magma.

4 0

4 years ago

If a simple truss member is known to carry a tensile force, then the internal force drawn on a free-body at a section cut when u

mote1985 [20]

Answer: b) pointed toward and parallel to the member.

Explanation:

It is shown in the picture attached

6 0

3 years ago

Put the following items in order of the scientific method:Draw conclusions. Ask a question. Develop a theory. Analyze data. Make

muminat

Ask a question
Make an observation
Develop a hypothesis
Experiment
Analyse data
Develop a theory
Hope this helped. :)

6 0

3 years ago

I have a voltage source of 12V but a light that only burns at 5V. The lamp works on 18 mA. Calculate the resistance that you EXT

Gala2k [10]

Answer:

The resistance that will provide this potential drop is 388.89 ohms.

Explanation:

Given;

Voltage source, E = 12 V

Voltage rating of the lamp, V = 5 V

Current through the lamp, I = 18 mA

Extra voltage or potential drop = 12 V - 5 V = 7 V

The resistance that will provide this potential drop (7 V) is calculated as follows:

$R = \frac{V}{I} = \frac{7 \ V}{18 \times 10^{-3} A} \ = 388.89 \ ohms$

Therefore, the resistance that will provide this potential drop is 388.89 ohms.

5 0

3 years ago