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STatiana [176]
4 years ago
15

Metalloids have properties of what other families or elements? Group of answer choices

Chemistry
1 answer:
Tanzania [10]4 years ago
4 0

Answer:

Metalloids have properties of metals and non-metals.

Explanation:

A metalloid is a type of chemical element which has properties in between, or that are a mixture of, those of metals and nonmetals.

The six commonly recognized metalloids are boron, silicon, germanium, arsenic, antimony, and tellurium.

Metalloids have a metallic appearance, but they are brittle (nonmetal property) and only fair conductors of electricity. Chemically, they behave mostly as nonmetals. They can form alloys with metal.

Most of their other physical properties and chemical properties are intermediate in nature.

That means Metalloids  have properties of both metal and nonmetal.

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Write a balanced chemical reaction for the dissolution of your copper oxide sample in hydrochloric acid
masha68 [24]
Copper oxide reacts with hydrochloric acid to produce copper chloride and water.

So the basic equation that illustrates this reaction is:
CuO + HCl ......> CuCl2 + H2O

Now, we need to balance this equation:
the number of copper and oxygen moles are balanced.
For each of hydrogen and chlorine, we have one mole as a reactant and two moles as product.
Therefore, to balance this, we will add an extra mole of HCl in the reactants.

Based on this, the final balanced equation would be:
CuO + 2HCl ................> CuCl2 + H2O
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3 years ago
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Answer:

The amount of each element that begins photosynthesis equals the amount of each element that is produced

Explanation:

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3 years ago
In the science lab, students are testing solutions as acids or bases. the ph level of solution "x" was determined to be an 8. wh
monitta
Solution 'X" would be a base. 

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3 years ago
The most common source of copper (Cu) is the mineral chalcopyrite (CuFeS2). How many kilograms of chalcopyrite must be mined to
kicyunya [14]
To find out the answer, we must know the mass percentage of Cu in the mineral chalcopyrite.

Mass percentage of Cu = molar mass of Cu/molar mass of chalcopyrite = 64/(64+56+32*2) = 34.8%.

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8 0
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Which of the following molecules is the primary product of photosystem I?a) Carbon dioxideb) Oxygenc) NADPHd) ATP
Lina20 [59]

<u>Answer:</u>

The primary product of the photosystem I is NADPH.

<u>Explanation: </u>

NADPH is the acronym of Nicotinamide adenine Dinucleotide Phosphate. This NADPH plays a vital role in many chemical reactions that take place during  photosynthesis process. NADPH is released as a product in Photosystem I.

In the photosystem I process, the molecule present will absorb sunlight energy and transfers it to electrons to produce NADPH. This NADPH molecule is used as fuel for the chemical process that occurs during the 2nd stage of the photosynthesis process. Its molecular formula is C_{12} H_{30} N_{7} O_{17} P_{13}. It acts as a fundamental metabolite.

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