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
den301095 [7]
2 years ago
8

1. The atoms of a certain element each contain 11 protons and 1 valence electron. Which statement correctly identifies this elem

ent and describes its chemical reactivity? *
a. The element is sodium (Na) and is highly reactive.
b. The element is fluorine (F)), and is not very reactive
c. The element is sodium (Na), and is not very reactive
d. The element is fluorine (F), and is highly reactive.
Chemistry
1 answer:
9966 [12]2 years ago
5 0

The answer is A. The element is sodium (Na) and is highly reactive

You might be interested in
The volume of a cube is calculated by using the following formula: l x h x w. The length (l), height (h), and width (w) of a met
aliya0001 [1]

Answer:

8.909466637830

Explanation:

herp derp

8 0
2 years ago
Use the kinetic theory to explain why a windy day is a good drying day?​
snow_tiger [21]

Explanation:

Wind helps to get out molecules of water from clothes.

In summer Ball is hard b because due to heat kinetic energy of molecules increases

3 0
1 year ago
Read 2 more answers
From a scientific viewpoint, why do many desert dwellers elect to wear white or light-colored garments
alexandr1967 [171]
Darker colors absorb sunlight more, so it will become hotter. Lighter colored clothes will better reflect sun so they will be less hot.

Hope that helped
7 0
3 years ago
For the following reaction, KcKc = 255 at 1000 KK.
bonufazy [111]

Answer :

The equilibrium concentration of CO is, 0.016 M

The equilibrium concentration of Cl₂ is, 0.034 M

The equilibrium concentration of COCl₂ is, 0.139 M

Explanation :

The given chemical reaction is:

                           CO(g)+Cl_2(g)\rightleftharpoons COCl_2(g)

Initial conc.      0.1550      0.173           0

At eqm.          (0.1550-x)  (0.173-x)         x

As we are given:

K_c=255

The expression for equilibrium constant is:

K_c=\frac{[COCl_2]}{[CO][Cl_2]}

Now put all the given values in this expression, we get:

255=\frac{(x)}{(0.1550-x)\times (0.173-x)}

x = 0.139 and x = 0.193

We are neglecting value of x = 0.193 because equilibrium concentration can not be more than initial concentration.

Thus, we are taking value of x = 0.139

The equilibrium concentration of CO = (0.1550-x) = (0.1550-0.139) = 0.016 M

The equilibrium concentration of Cl₂ = (0.173-x) = (0.173-0.139) = 0.034 M

The equilibrium concentration of COCl₂ = x = 0.139 M

5 0
2 years ago
Fast pls..,.,,..,,.,.,.
OLga [1]
I believe the answer is gills

Fish's use gills to breathe, so tadpoles should use gills too

hope this helps

(got the info from a documentary i watched a couple years ago)
4 0
2 years ago
Read 2 more answers
Other questions:
  • The successive ionization energies of a certain element are I1 = 589.5 kJ/mol, I2 =1145 kJ/mol, I3= 4900 kJ/mol, I4 = 6500 kJ/mo
    8·2 answers
  • How many atoms are in 2 moles of phosphorus
    14·1 answer
  • Consider the reaction
    9·1 answer
  • If you burn 46.0 g of hydrogen and produce 411 g of water, how much oxygen reacted?
    15·1 answer
  • What type of chemical reaction does this equation represent?<br> H3PO3—&gt;H3PO4 + PHz
    11·1 answer
  • What is activation energy
    7·2 answers
  • What is the molality of a solution containing 19.5g HCl and 257g of H2O?
    10·1 answer
  • Alcohol or acid will travel the furthest up the paper chromatography? pls help thanks and explain
    14·1 answer
  • Determine the ratio of moles of iron actually used to moles of new product actually formed. Does this molar ratio agree with the
    11·1 answer
  • What is the difference between amines and amides​?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!