1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
astraxan [27]
3 years ago
5

Look at the following chemical compounds. State how many molecules of each reactant are present. (I’m sorry I’ve been working on

this forever please help me)
A. NaOH.

Na___ O____ H____

B. CO2.

C____ O_____

C. 3CaO.

Ca____ O_____

D. 2MgCl2.

Mg ____ Cl____
Chemistry
1 answer:
Kryger [21]3 years ago
7 0

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

<h3>Compound ~ \mathrm{NaOH}</h3>

Na = 1

O = 1

H = 1

<h3>Compound ~ \mathrm{CO_2}</h3>

C = 1

O = 2

<h3>Compound ~ \mathrm{3  \: CaO}</h3>

Ca = 3

O = 3

<h3>Compound ~ \mathrm{2 MgCl_2}</h3>

Mg = 2

Cl = 4

You might be interested in
PLEASE ANSWEER THIS HURRY HURRRRRRRRRYY
klemol [59]
The first one would be it
6 0
4 years ago
Carbon diselenide (CSe2) is a liquid at room temperature. The normal boiling point is 125°C, and the melting point is –45.5°C. C
Tema [17]

Answer:

Explanation:  The strengths of the inter molecular forces varies as follows -

        CO_{2}< CS_{2} < CSe_{2}

The normal boiling point of CSe2 is 125°C and that of CS2 is 116°C, which explains the trend that as we move down the group, the boiling point of e compound increases as the size increases.

This usually happens because larger and heavier atoms have a tendency to exhibit greater inter molecular strengths due to the increase in size . As the size increases, the valence shell electrons move far away from the nucleus, thus has a greater tendency to attract the temporary dipoles.

And larger the inter molecular forces, more tightly the electrons will be held to each other and thus more thermal energy would be required to break the bonds between them.

5 0
3 years ago
3. If the sun heats my car from a temperature of 20.0 C to a temperature of 55° C, what will the
Katyanochek1 [597]

Answer:

I would try but i just need points good luck tho

5 0
3 years ago
State the number of neutrons in an atom of Ne-20 and the number of neutrons in an atom of Ne-22. choose two answers * 1 point Ne
saveliy_v [14]

Answer:

Ne 20: 10

and

Ne 22: 12

Explanation:

Ne-20:

N = A - Z = 20 - 10 = 10 neutrons

Ne-22:

N = A - Z = 22 - 10 = 12 neutrons

N: number of neutrons

A: mass number

Z: atomic number

8 0
3 years ago
The reaction that takes place when iron metal combines with aqueous hydrochloric acid.
Juli2301 [7.4K]
The reaction gives out a yellow showery sparks and produces a black solid. Iron reacts with dilute hydrocloric acid to give iron chloride and hydrogen gas.

2Fe+2Hcl3 = 2FeCl3+H2

8 0
3 years ago
Other questions:
  • Silver has two naturally occurring isotopes with the following isotopic masses: 47Ag 107 – 106.90509 47Ag 109 – 108.9047 The ave
    10·1 answer
  • When you add milk, sugar and coffee to a cup of hot water, which of these explain that what you formed in a mixture?
    12·1 answer
  • What is an atom?explain it plz.
    5·1 answer
  • Which fuel is better renewable or non-renewable fuel and give a reason why
    15·1 answer
  • Balance the following chemical equation, then answer the following question. C8H18(g) + O2(g) →CO2(g)+H2O(g) How many grams of o
    5·1 answer
  • 22. What is a comet?
    5·1 answer
  • What element is missing in the following nuclear equation? bismuth radon lead polonium
    5·1 answer
  • Suppose a solution has a volume of 2.0 liters. Which amount of solute would produce the most concentrated solution?
    11·2 answers
  • The dimensions of a rectangular solid are measured to be 1.27 cm, 1.3 cm, and 2.5 cm. The volume should be recorded as
    7·1 answer
  • How much heat does it take to raise 100g of aluminum (c= .9 J/gC) from 12.5C to 31C?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!