CHEMISTRY MIDDLE SCHOOL

Charcoal and copper are black how do you distinguish​

Answers

Answer 1
Answer:

Answer: charcoal being less dense it floats on water while copper oxide settles at the bottom

Explanation: when you add a liquide charcoal will float and copper sinks

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What does the atomic numbrr represent on the periodic table?​

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Answer:

Explanation:

The atomic number tell us the number of protons and neutrons in the nucleus of an atom. in other words ,each element has a unique number that identifies how many protons are in one atom of that element example, all hydrogen atoms, and only hydrogen atoms, contain one proton and have an atomic number of 1.

Which tool or tools would you use to measure and compare the mass of a cup of fresh water and a cup of salt water

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You could use a scale to measure the mass as well as a cup to hold the water. If you were comparing the two, you should also probably use a graduated cylinder to get the same amount of each type of water.

Hope this helped ^_^

The anticodon is the three-base code on the tRNA molecule that binds to the codon on mRNA. What is the associated codon for the anticodon UUA?

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It is AAU
A-U
U-A
C-G
G-C
The associated codon is AAU

Use volume density and mass in the same sentence

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Answer:

If mass remains the same while the volume of a substance increases, the density of the substance will decrease.

Explanation:

Is texture physical or chemical

Answers

physical, chemical is what makes up the substance, physically is how it appears

Final answer:

Texture is a physical property that refers to the feel or consistency of a substance. It is determined by the arrangement and size of the particles that make up the substance. Texture is observed and described without any chemical changes occurring in the substance.

Explanation:

Texture

Texture is a physical property, not a chemical property. It refers to the feel or consistency of a substance or material. In chemistry, texture is often used to describe the physical characteristics of solids, liquids, and gases.

For example, when we describe a substance as being rough, smooth, soft, or hard, we are talking about its texture. Texture can be observed and described without any chemical changes occurring in the substance. It is determined by the arrangement and size of the particles that make up the substance.

Learn more about Physical property here:

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What is a solution?what is the solvent of a solution

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A simple solution is basically two substances that are evenly mixed together. One of them is called the solute and the other is the solvent. A solute is the substance to be dissolved (sugar). The solvent is the one doing the dissolving (water).

Answer:

it isnt any

Explanation:

i think
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