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2 years ago

Which of the following is a compound? A. Zinc B. S8 C. CaCl2

Chemistry

1 answer:

sertanlavr [38]2 years ago

3 0

C. Calcium is your best bet. Calcium chloride is amongst inorganic compounds.

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How many moles of gases are in a can with a volume of 555 mL and a pressure of 600.0 kPa at

Delvig [45]

Answer:

Explanation:

The most common example is the molar volume of a gas at STP (Standard Temperature and Pressure), which is equal to 22.4 L for 1 mole of any ideal gas at a temperature equal to 273.15 K and a pressure equal to 1.00 atm.

3 0

2 years ago

Write the name for each of the following chemical formulas. d. P3N5 (for doping semiconductors)

rewona [7]

Answer:

Triphorphorus Pentanitride

Explanation:

since there are three phosphorus use the prefix tri-, since there are five nitrogen use the prefix penta. tri=3, penta=5. then add a suffix -ide to the end of nitrogen. that will give you triphosphorus pentanitride.

3 0

2 years ago

Which metal will spontaneously react with Zn2+(aq), but will not spontaneously react with Mg2+(aq)?

DerKrebs [107]

Correct Answer: option (1) Mn(s)

Reason:
The spontaneity of electrochemical cell, depends on the it's Eo value. Electrochemical cells with positve Eo are spontanous and vice-versa.

In present case, the Eo of half-cell of interest are as follows:
Eo Zn2+/Zn = -0.763v
Eo Mg2+/Mg = 2.37v
Eo Mn2+/Mn = -1.18v

Therefore, Eo cell (with Zn as one of the half-cell) = Eo Zn2+/Zn - Eo Mn2+/Mn
= -0.763 - (-1.18)
= 0.417v

On other hand, Eo cell (with Mg as one of the half-cell) = Eo Mg2+/Zn - Eo Mn2+/Mn
= -2.37 - (-1.18)
= -1.19v

Thus, Mn(s) metal will spontaneously react with Zn2+(aq), but will not spontaneously react with Mg2+(aq)

8 0

3 years ago

State the change in energy that occurs in order to break the bonds in the hydrogen molecules, H2(g) so it can react with O2(g) t

Gemiola [76]

Answer:

Explanation:

Energy is absorbed to break bonds. Bond-breaking is an endothermic process. Energy is released when new bonds form. Bond-making is an exothermic process.

BRAINLY PLZ

8 0

3 years ago

A student mixed two clear liquids together in a beaker. A solid and a new liquid formed. The student forgot to write down the ma

morpeh [17]

Mass of liquid reactant A is 11g.

as we know that,

reactant = product

from conservation of mass

so, liquid reactant A + liquid reactant B = liquid product + solid product

substituting the values, we get,

liquid reactant A + 9 = 8 + 12

liquid reactant A + 9 = 20

liquid reactant A = 20 - 9

liquid reactant A = 11g

Hence, mass of the liquid reactant A is 11g.

what is a reactant ?

A reagent, also known as an analytical reagent, is a substance or compound that is added to a system in chemistry to bring about a chemical reaction or check to see whether one happens. Although the terms "reagent" and "reactant" are frequently used synonymously, "reactant" refers to a material that is consumed during a chemical reaction.

Mass of liquid reactant A is 11g.

Learn more about product and reactant here:-

brainly.com/question/17096236

#SPJ1

4 0

1 year ago