Which term describes matter that is a substance made of diffrent kinds of atoms bonded together

Answers

Answer 1

Answer: Compounds are substances made of at least 2 different elements. Molecules have at least 2 atoms, doesn't have to be different elements. Compounds and molecules both work.

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Which term describes this diagram? A.
trophic level

B.
food web

C.
food chain

D.
matter cycle

Answers

i would say a food chain

Food chain is my answer

The columns of the main transition element start with group.........(2B, 4B, 3B, 5B)

Answers

Yes :) elements in the central block. Groups 4B–8B, 1B, and 2B, or 4–12) in the periodic table, for example, iron, manganese, chromium, and copper :) hope this helps!

When is energy used? please explain and give me an example.

Answers

Energy could be chemical, radiant, electrical, mechanical, kinetic, or thermal. These are all types of energy. Kinetic is when the thing object or person is moving. On the other hand electrical is something that powers your phone or tablet. Hope this helps! Mwah!

How Do Clownfish Catch Their Food?

Answers

Clown fish get there food from anemone by eating by eating the algae

How many grams of chloride ions are in 8.3 g of copper (II) chloride

Answers

$4.4\; {\rm g}$ .

Explanation

Refer to a modern periodic table for relative atomic mass:

Cu- 63.546;
Cl- 35.45.

Formula of copper (II) chloride: CuCl₂.

Formula mass of copper (II) chloride:

63.546 + 2 × 35.45 = $134.446\; {\rm g \cdot mol^(-1)}$ .

How many ${\rm mol}$ of formula units in 8.3 grams of CuCl₂?

$(8.3\; {\rm g}) / (134.446\; {\rm g \cdot mol^(-1)}) \approx 0.0617\; {\rm mol}$

Note the subscript "2" in the formula CuCl₂. There are $2\; {\rm mol}$ of chloride ions in every $1\; {\rm mol}$ formula unit of CuCl₂.

There would be $2 * 0.0617\; {\rm mol} \approx 0.123\; {\rm mol}$ of ${\rm Cl^(-)}$ ions in $0.0617\; {\rm mol}$ formula units of CuCl₂.

The mass of $1\; {\rm mol}$ of chloride ion is 35.45 grams.

The mass of $0.123\; {\rm mol}$ of ${\rm Cl^(-)}$ ions will be $35.45 * 0.123 \approx 4.4\; {\rm g}$ .

Round the final value to two sig. fig. since the mass in the question is also 2 sig. fig.

What is a element what is a compound what is a moleculew

Answers

Answer:

An element is a pure substance that cannot be broken down into simpler substances by chemical means. Elements are made up of only one type of atom. For example, oxygen and hydrogen are elements.

A compound is a substance made up of two or more different elements chemically bonded together in a fixed ratio. The elements in a compound are held together by chemical bonds. For example, water (H2O) is a compound made up of hydrogen and oxygen atoms.

A molecule is a group of two or more atoms held together by chemical bonds. Molecules can be made up of atoms from the same element or different elements. For example, oxygen gas (O2) is a molecule made up of two oxygen atoms bonded together.

In summary, an element is a pure substance made up of only one type of atom, a compound is a substance made up of two or more different elements chemically bonded together, and a molecule is a group of atoms held together by chemical bonds.

Answer: An element is the simplest substance. There are many unique elements but they are all different and cannot be broken down any further and still have their own characteristics. A molecule is 2 or more atoms that are chemically bound. A compound molecule is a molecule(2 or more atoms) that is made of 2 or more elements.

Explanation: atoms that are chemically bound Molecule=2 or more

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