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
Hoochie [10]
3 years ago
9

Can anyone help me with number 18

Chemistry
1 answer:
Anton [14]3 years ago
4 0
Its A. Solid Solution, I don't really know how to really describe why. But I just looked it up on google. Hope I helped. 
You might be interested in
Which of the following is an example of an attempt to improve an environmental problem caused by chemicals
Leto [7]

what are the answer choices?

5 0
3 years ago
Read 2 more answers
When lithium nitride, Li 3 N ( s ) , is treated with water, H 2 O ( l ) , ammonia, NH 3 ( g ) , is produced. Predict the formula
allochka39001 [22]

Answer : The formula of the gas produced is, PH_3 (phosphine gas)

Explanation :

According to the question, when sodium phosphide is treated with water then it react to give phosphine gas and sodium hydroxide.

The balanced chemical reaction will be:

Na_3P(aq)+3H_2O(l)\rightarrow PH_3(g)+3NaOH(aq)

By Stoichiometry of the reaction we can say that:

1 mole of sodium phosphide reacts with 3 moles of water to give 1 mole of phosphine gas and 3 moles of sodium hydroxide.

Thus, the formula of the gas produced is, PH_3 (phosphine gas)

8 0
3 years ago
Atomic number of a member of halogens
ELEN [110]
Bromine 35

Chlorine 17

Flourine 9

Iodine 53

Astatine 85
4 0
3 years ago
If a substance has a mass of 12.50 g and takes up 3.4 mL of space, what is the density?
miskamm [114]

Answer:

The answer is

<h2>3.68 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

<h3>density =  \frac{mass}{volume}</h3>

From the question

mass of substance = 12.50 g

volume = 3.4 mL

The density of the substance is

density =  \frac{12.50}{3.4}  \\  = 3.676470588...

We have the final answer as

<h3>3.68 g/mL</h3>

Hope this helps you

7 0
3 years ago
An electrochemical cell contains a standard hydrogen electrode and a cathode consisting of a metallic chromium electrode, Cr(s),
stira [4]

Answer:

c. I, II and III

Explanation:

The cell is as follows

Cr / Cr⁺²(1M) // H⁺ ( 1 M ) / H₂

Standard reduction potential of hydrogen cell is zero . Standard reduction potential is negative E for Cr⁺² / Cr(1M) half cell

Cell potential = Ecathode - Eanode

= 0 - ( - E)

= E

E is cell potential and also standard cell potential or emf of the cell .

Standard reduction potential that is for Cr3+/Cr.  is  - E .

Hence statement I , II , III are right . IV th statement is wrong because of sign

Option c is correct.

5 0
3 years ago
Other questions:
  • The maximum number of electrons in a p sub-level is:
    6·2 answers
  • Is heated water more or less dense than the melted snow And rainwater
    11·1 answer
  • Which factor will have little effect on the solubility of saturated solutions?
    11·2 answers
  • A pure substance is matter that consists of matter with a composition that
    12·2 answers
  • Glycolysis is the process by which energy is harvested from glucose by living things. Several of the reactions of glycolysis are
    11·1 answer
  • A solid is added to a liquid in a flask.
    10·1 answer
  • Given the equilibrium reaction: 2 A (aq) + 3 B (aq) &lt;— —&gt; 2 C (aq) + D (aq) and equilibrium concentrations of [A] = 0.60M,
    14·1 answer
  • Reacts with air..physical or chemical property ;)
    7·2 answers
  • CAN SOMEONE PLEASE CHECK MY ANSWER!!!
    12·2 answers
  • When heated, calcium carbonate decomposes according to the equation given below:
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!