Where are alkaline earth metals found on the periodic table

Answers

Answer 1
Answer: The alkaline earth metals are in group two on the periodic table. They have 2 valence electrons. 
Answer 2
Answer:

Answer:

They are in group 2

Explanation:


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How many milliliters of 0.183 m hcl would be required to titrate 5.93 g koh?

Answers

  Molar mass:
KOH = 56.0 g/mol

Number of moles of KOH :

5.93  / 36.5 => 0.1624 moles

KOH + HCl = KCl + H₂O 

1 mole KOH --------------> 1 mole  HCl
0.1624 moles KOH ----> ?

moles HCl = 0.1624 x 1 / 1

= 0.1624 moles of HCl

V ( HCl ) = moles / molarity

V(HCl) = 0.1624 / 0.183

V (HCl) = 0.887 L x 1000 = 887 mL

hope this helps!



An atom that has 13 protons and 15 neutrons is an isotope of the element? How can I count it?

Answers

it's simple.
the number of protons in an atom never changes. And also, the no of protons is its atomic number.if you look up the periodic table, you will find a number on the top - left corner of each of the boxes. This is the atomic number.No 2 same elements on the periodic table have the same atomic number. So, all you have to do is search for a box that has the number 13 on it.

and by the way ... the element which you're searching for is Aluminium

The relatively high boiling point of water is due to water havingA) hydrogen bonding
B) metallic bonding
C) nonpolar covalent bonding
D) strong ionic bonding

Answers

The answer is A because water molecules don't have metallic bonding, and water is also polar, and it takes more time for the heat energy to break down the hydrogen bonds 

A balloon, whose volume at 23°C is 535 mL, is heated to 46°C. Assuming the pressure and amount of gas remain constant, what is the volume of the balloon at 46°C?

Answers

An ideal gas _____. does not exist
perfectly obeys all gas laws
only exists at very low temperatures
only exists at very high pressures

Answers

THE ANSWERS ARE A AND B!!!!

HOPE I HELPED

Answer:

does not exist

perfectly obeys all gas laws

Explanation:

Ideal gases is a simplification of real gases that is made to study them more easily. Then a hypothetical or theoretical, that is to say, imaginary gas is considered ideal gases.   Despite not representing a gas that really exists,  the ideal gas is a tool to facilitate a large number of mathematical calculations

The ideal gas behavior is at low pressures and high temperatures.

The ideal gas equation is based condensing Boyle's law, Gay-Lussac's, Charles's and Avogadro's law:

P * V = n * R * T

where:

  • P = pressure
  • V = volume
  • n = number of moles
  • R = universal gas constant
  • T = temperature

In this way an ideal gas perfectly obeys all gas laws.

How can compact fluorescent bulbs help the environment? (2 points) They will create new industry.
The will use less energy overall.
They will further science and technological development.
They will provide society with a product that is in short supply.

Answers

Answer : fluorescent bulbs help the environment as they use less energy overall

Explanation :

Fluorescent bulbs are energy efficient. They consume less electricity as compared to conventional bulbs. They also generate less heat.

In modern world, we are facing energy crisis. The non renewable energy sources are getting depleted. It is highly necessary that we should start using alternative energy sources such as non renewable energy sources more often.

Another way to reduce our energy consumption is to use gadgets which use electricity more efficiently. One example is fluorescent bulb over traditional incandescent bulbs.

Therefore we can say that fluorescent bulbs help environment by using less energy and by producing less heat.

The answer to this question is " They will use less energy overall."