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
konstantin123 [22]
3 years ago
11

Refer to a periodic table. In which period is calcium? 6 4 2 8

Chemistry
1 answer:
kvasek [131]3 years ago
6 0

Here look at this image it might help you if not then i will see what i can help you with

You might be interested in
Which compound has the smallest percent composition by mass of chlorine?(1) HCl (3) LiCl(2) KCl (4) NaCl
PSYCHO15rus [73]
Taking the compound with the metallic counterpart of highest mass would be the answer. Looking at the periodic table, it is easy to realize that K has the highest mass out of H, Li, K, and Cl. Therefore, the answer is (2) KCl.
3 0
3 years ago
2-ciclopropilpropano​
DaniilM [7]

Answer:

cool

Explanation:

3 0
3 years ago
A certain polyatomic ion contains 49 protons and 50 electrons. What's the net charge of this ion?
timurjin [86]

Explanation:

B more negative charges than positive charges

6 0
3 years ago
If you experience a painful bee sting, there is formic acid at work. which type of organic compound is responsible for your suff
QveST [7]
The Answer is B - <span>carboxylic acid </span>

3 0
3 years ago
Read 2 more answers
A 25 liter gas cylinder contains 10 mole of carbon dioxide. Calculate the pressure, in atm, of the gas at 325K.
Arada [10]

<u>Answer:</u> The pressure of carbon dioxide gas is 11 atm

<u>Explanation:</u>

To calculate the pressure of gas, we use the equation given by ideal gas equation:

PV = nRT

where,

P = pressure of the gas = ?

V = Volume of gas = 25 L

n = number of moles of gas = 10 mole

R = Gas constant = 0.0821\text{ L atm }mol^{-1}K^{-1}

T = temperature of the gas = 325 K

Putting values in above equation, we get:

P\times 25L=10mol\times 0.0821\text{ L atm }mol^{-1}K^{-1}\times 325K\\\\P=11atm

Hence, the pressure of carbon dioxide gas is 11 atm

4 0
3 years ago
Other questions:
  • Jenavius placed a marshmallow in the microwave to make a smore for desert. The marshmallow expanded when it was heated. How can
    5·2 answers
  • All combustion reactions release energy true or false
    6·2 answers
  • In the laboratory you are asked to make a 0.694 m copper(II) iodide solution using 455 grams of water. How many grams of copper(
    5·1 answer
  • Which of the following is the correct word equation for the reaction described below?
    11·2 answers
  • An element X has two isotopes. X–15 has 7 protons and 8 neutrons. Determine the atomic number and mass number of the second isot
    14·1 answer
  • Which of the following chemical reaction are redox reactions: PCl3 + Cl2 ® PCl5 Cu + 2AgNO3 ® Cu(NO3)2 + 2Ag
    14·1 answer
  • Which equation would be used to calculate the rate constant from initial<br> concentrations?
    15·2 answers
  • CF = 5, CD = 12, and EF = 5. Solve for the blanks below:
    10·1 answer
  • Rain freezes as it hits the ground to form solid water is this a physical change or chemical change?
    10·2 answers
  • What are some examples of how science can help us in our everyday lives???
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!