NaCI has a greater % of sodium because the Chloride ion is closer in size to Na ion than Bromide ion is to Na ion. Therefore the NaCl lattice is more neatly and closely packed, leading to higher melting point.

6 0

3 years ago

HELPPPPP ME ASAP PLISSSSS

Airida [17]

Answer:

25 cm3 of 0.15 mol dm-3 hydrogen peroxide

Explanation:

Not 100% with this one was a bit tricky.

4 0

3 years ago

Which car has the most kinetic energy?

luda_lava [24]

Answer:

<h3>.A car of mass 1800kg with speed 15m/s</h3><h3>Opinion C</h3>

7 0

3 years ago

What is the frequency of the sinusoidal graph?

Arisa [49]

Answer:

For finding frequency, we need to first find the period of the graph.

The period of a sinusoidal graph is the time interval in which it repeats its pattern.

In the graph, we can see, after $1/period$ time, it repeats its pattern.

Hence the period of the graph is $\pi /2$ .

Now we need to find its frequency $1/\pi /2$

The formula for frequency is $2/\pi$

This is the answer

i hope you pass the assignment

try your best!

8 0

3 years ago