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Ulleksa [173]
2 years ago
10

The mineral quartz has a chemical formula of SiO2. What is the formal name for this compound?

Physics
2 answers:
igomit [66]2 years ago
8 0

Answer:

Silicon dioxide

Explanation:

lana66690 [7]2 years ago
3 0

Answer:

Silicon Dioxide

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goldenfox [79]

a) 0.321 ly

b) 0.321 light years is not far in astronomical terms. Alien life would need to transmit at tremendous power in order for their radio transmissions to be detectable. Their radio signal also needs to be stronger than background noise in order to be distinguishable. Therefore it is unlikely that radio transmissions from alien life will ever be detected.

6 0
2 years ago
Michael has a substance that he puts in Container 1. The substance has a volume of 5 cubic meters. He then puts the substance in
m_a_m_a [10]
Gas because liquids and solids volumes don't change from switching containers.
3 0
3 years ago
A scientist who wants to study the affects of fertilizer on plants sets up an experiment. Plant A gets no fertilizer, Plant B ge
Solnce55 [7]

Answer: Plant A

Explanation: The control group is participants who do not receive the experimental treatment.

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3 years ago
Give examples of the one element from the alkaline earth metal group and one from the noble gases group. Include each element at
zhuklara [117]
Alkali metals: left column of your periodic table (not hydrogen, but anything below it). They have one valence electron, which they are happy to share in a reaction.

Halogens: second column from the right of your periodic table. They are one electron short of a full shell, so they are reactive in the opposite way that alkalis are--they want electrons.

Atomic number (number of protons) is the big number on the periodic table square. Hydrogen's is 1.

Atomic mass is a little number down below. For example, Hydrogen's is 1.008.

Neutrons are a tricky subject, because different isotopes of the same element can have different numbers of neutrons. You can't generally get this from the atomic mass, because the atomic mass is a weighted average of naturally occurring isotopes. Hydrogen can have 0,1, or 2 neutrons. To answer this, you'd have to choose a particular isotope from the table of isotopes (a completely different chart from the periodic table) which has a certain number of neutrons: n = weight - Z.

Valence electrons are the electrons in the outermost shell. (The column of the table).

<span> Number of principal shells is the row of the periodic table. </span>
8 0
3 years ago
Beer, an alcoholic beverage, is a solution composed primarily of water with an ethanol content of about 7%. identify the solute
zloy xaker [14]
Hi, thank you for posting your question here at Brainly.

A mixture primarily consists of the solute and the solvent. The solvent constitutes the majority of the amount in the mixture. Since ethanol account for 7%, then water must be 93%, considering other inert materials to be negligible.

Thus, the solute is ethanol and the solvent is water.
3 0
3 years ago
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