Ask question

Ask question

All categories

geniusboy [140]

4 years ago

15

Table sugar is not a mineral because: Select one: a. it is in crystal form. b. it is made of more than one element. c. it is not

made by a geologic process. d. Its chemical composition is always changing.

1 answer:

Vlad1618 [11]4 years ago

3 0

C) It's not made by a geologic process

You might be interested in

Uranium-235 has a half-life of 713 million years, while carbon-14 has a half-life of about 5,730 years. Which isotope would be m

nirvana33 [79]

Uranium-235 is more useful.

3 0

3 years ago

Read 2 more answers

PLS HELP THESE ARE RHE ONLY QUESTIONS I HAVE LEFT DUE SOON

tia_tia [17]

Explanation:

Magnesium reacts with dilute hydrochloric acid in a conical flask which is connected to an inverted measuring cylinder in a trough of water. The volume of hydrogen gas produced is measured over a few minutes, and the results are used to plot a graph

This is intended as a class practical. It is best if the students work in pairs because setting up and starting the experiment requires more than one pair of hands. One student can add the magnesium ribbon to the acid and stopper the flask, while the other starts the stopclock. During the experiment, one student can take the readings while the other records them. The experiment itself takes only a few minutes. But allow at least 30 minutes to give students time to set up, take readings and draw graph.

please mark as brainliest

8 0

3 years ago

a substance has neither of fixed shape nor a fixed volume state whether it is a solid or liquid or gas

tensa zangetsu [6.8K]

A gas because if you freeze water, it turns into a shape as where gas can’t be frozen

4 0

3 years ago

Read 2 more answers

Be sure to answer all parts. Give the name and the formula of the compound formed from the following elements: (a) bromine and r

MA_775_DIABLO [31]

Answer:

These are the chemical names and molecular formula of the compounds formed from these elements:

Rubidium + Bromine = <em>Rubidium bromide, RbBr</em>
Strontium + Sulphur = <em>Strontium sulfide, SrS</em>
Barium and Chlorine = <em>Barium chloride, </em> $BaCl_{2}$ <em />

7 0

3 years ago

Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it

Sauron [17]

Answer:

The concentration of COF₂ at equilibrium is 0.296 M.

Explanation:

To solve this equilibrium problem we use an ICE Table. In this table, we recognize 3 stages: Initial(I), Change(C) and Equilibrium(E). In each row we record the <em>concentrations</em> or <em>changes in concentration</em> in that stage. For this reaction:

2 COF₂(g) ⇌ CO₂(g) + CF₄(g)

I 2.00 0 0

C -2x +x +x

E 2.00 - 2x x x

Then, we replace these equilibrium concentrations in the Kc expression, and solve for "x".

$Kc=8.30=\frac{[CO_{2}] \times [CF_{4}] }{[COF_{2}]^{2} } =\frac{x^{2} }{(2.00-2x)^{2} } \\8.30=(\frac{x}{2.00-2x} )^{2} \\\sqrt{8.30} =\frac{x}{2.00-2x}\\5.76-5.76x=x\\x=0.852$

The concentration of COF₂ at equilibrium is 2.00 -2x = 2.00 - 2 × 0.852 = 0.296 M

6 0

3 years ago