You can keep your heart strong by:

Health

2 answers:

katrin2010 [14]2 years ago

6 0

Answer:

B) Doing activities, like playing outside, riding your bike, and swimming.

Ulleksa [173]2 years ago

6 0

The answer would be B

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A 3.0% (m/v) potassium chloride solution has a volume of 25.0 mL. How many moles of potassium chloride are in the sample?

Oduvanchick [21]

Using your knowledge of m/v = g/mL, you can start by putting that in the equation as:

$\frac{3g}{100mL}$

And you know that the volume is 25 mL. So you could put this into the equation as:

$\frac{25mL}{1}$

And you also know that the molar mass of KCl is 74.55g (K = 39.1 g/mol and Cl = 35.45 g/mol. Add them together to get 74.55g/mol).

We can then put this in the equation as:

$\frac{1mol}{74.55g}$

Then, we can mulitply them all together:

$\frac{3g}{100mL}* \frac{25mL}{1} * \frac{1mol}{74.55g}=0.01 mol$

And now we know that there are 0.01 moles of KCl in the sample.

8 0

3 years ago

What is the best subject to find how to fix health and life

erastovalidia [21]

learn more about beneficial eating and nutrition portions.

learn more about being physically involved.

make lists of. healthy meals that you like or may need to eat more of—or more often. foods you love that you may require to eat less often. things you could do to be more physically active.

<h3>What is the study of nutrition?</h3>

Nutritional Sciences is the study of food, nutrients, and other food substances, the intake and biochemical processing of food importance, their relationship to health and disease, and the application of this knowledge to approaches and programs.

<h3>What are 10 healthy habits?</h3>