Match these items.

Chemistry

1 answer:

Pani-rosa [81]3 years ago

4 0

Answer:

1- veins

2-aorta

3-valve

4-ventricles

5-atrium

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What is the range of pH values in a basic solution?

vovikov84 [41]

Answer:

b. ph is greatet than 7

Explanation:

ph=7 neutral

ph=7-14 basicity as you go up increase basicity

ph=0-7 acodity as you go down increasing acidity

8 0

3 years ago

How is popcorn good for protecting a egg?

bezimeni [28]

Answer:Possibilities include balloons, popcorn, packing peanuts, wads of paper or cereal puffs. Encase the egg in any of these inside a paper or plastic bag, a sock or a stocking. If you have any bubble wrap around the house, wrapping the egg in several layers of bubble wrap should also provide a good cushion

Explanation:

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3 years ago

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Are protons and electrons the same number

enot [183]

Atoms must have equal numbers of protons and electrons. So to answer your question, yes protons and electrons are the same number.

4 0

4 years ago

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Morphine has the formula C17H19NO3. It is a base and accepts one proton per molecule. It is isolated from opium. A 0.682g sample

zloy xaker [14]

<u>Answer:</u> The mass of morphine is 0.059 grams

<u>Explanation:</u>

To calculate the number of moles for given molarity, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}\times 1000}{\text{Volume of solution (in mL)}}$

Molarity of sulfuric acid solution = 0.0116 M

Volume of solution = 8.92 mL

Putting values in above equation, we get:

$0.0166M=\frac{\text{Moles of sulfuric acid}\times 1000}{8.92}\\\\\text{Moles of sulfuric acid}=\frac{0.0116\times 8.92}{1000}=1.035\times 10^{-4}mol$