3 years ago

Using the periodic table, choose the more reactive metal. Ca or Ra

Chemistry

2 answers:

Musya8 [376]3 years ago

8 0

Definitely ra ...........

siniylev [52]3 years ago

7 0

Radium is more reactive than calcium so Ra.

You might be interested in

Where do 80% of earthquakes occur? please help ??? due in 20 minutes

suter [353]

80% of earthquakes occur along the rim of the pacific ocean.

4 0

3 years ago

Read 2 more answers

In the following reaction, how many moles of H2O are created when 7 moles of oxygen are consumed?

notka56 [123]

Answer:

Explanation:

You can see in the chemical equation that 7 $O_{2}$ are used up to produce 6 $H_{2}O$

4 0

3 years ago

Determine the volume of distilled water that should be added to 20.0 mL of 12.0 M HCl(aq) in order to prepare a 0.500 M HCl(aq)

BARSIC [14]

Answer:

$V_{H_2O}=460 mL$

Explanation:

Hello!

In this case, in a dilution process, water is added to a solute in order to decrease its concentration but increase the volume of the solution. It means that if we have 20.0 mL of a 12.0-M solution of HCl and we want a 0.500-M solution, we need to apply the following formula considering that the moles remain unchanged:

$M_1V_1=M_2V_2$