2 years ago

PLEASE HELP ME!!!!!!!!!

Chemistry

1 answer:

guapka [62]2 years ago

8 0

Answer:

remember, the number of atoms is represented by the subscript. if there is a coefficient, multiply it by the subscript. if there is no subscript or coefficient written, assume it is 1.

cu = 1 atom on the reactants side, 1 atom on the products side

s = 1 atom on the reactants side, 1 atom on the products side

O = 2 atoms on the reactants side, 2 atoms on the products side

You might be interested in

2.70 feet is the same as how many cm?

finlep [7]

about 82.2 centimetres.

8 0

2 years ago

Determine the freezing point depression of 2 kg of water when 2 mol salt is added to it. The kf of water is 1.86 degrees C/M. Sh

Svet_ta [14]

Answer: The freezing point depression is $1.86^0C$

Explanation:

Depression in freezing point is given by:

$\Delta T_f=K_f\times m$

$\Delta T_f$ = Depression in freezing point

$K_f$ = freezing point constant = $1.86^0C/m$

m= molality = $\frac{\text {moles of solute}}{\text {mass of solvent in kg}}=\frac{2mol}{2kg}=1m$

$\Delta T_f=1.86mol/kg^0C\times 1m$

$\Delta T_f=1.86^0C$

Thus freezing point depression is $1.86^0C$

3 0

2 years ago

A weak base. B. has a K. of 4.46 x 10-10 A solution with an unknown initial concentration is tested, and found to have a pH of 8

Ann [662]

Answer:

0.013MB

Explanation:

6 0

2 years ago

How to do Criss cross method of lithium carbide?

timama [110]

You will need to go on yt

5 0

2 years ago

After scientists use a careful process to gather evidence and establish scientific facts, which step most likely occurs next in

oee [108]

Answer:

Conducting Experiments

3 0

1 year ago