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Yuliya22 [10]
2 years ago
15

A substance floats in water. The density of water is 1 g/mL. Which of the following is most likely the density

Chemistry
1 answer:
faltersainse [42]2 years ago
6 0

Answer:

The density of water is 1g/mL

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Strontium chloride and sodium fluoride react to form strontium fluoride and sodium chloride, according to the reaction shown.
grin007 [14]

Answer:

4.07L of a 0.110M NaF are needed

Explanation:

Based on the reaction:

SrCl₂(aq)+2NaF(aq)⟶SrF₂(s)+2NaCl(aq)

<em>1 mole of strontium chloride react with 2 moles of NaF</em>

<em />

361mL of 0.620M SrCl₂ solution has:

0.361L ₓ (0.620mol / L) = 0.22382 moles SrCl₂.

Moles of NaF for a complete reaction must be:

0.22382 moles SrCl₂ ₓ (2 mol NaF / 1 mol SrCl₂) = <em>0.44764 moles of NaF</em>

If you have a solution of 0.110M NaF, the moles of NaF needed are:

0.44764 moles of NaF ₓ (1L / 0.110mol NaF) = <em>4.07L of a 0.110M NaF are needed</em>

<em></em>

6 0
3 years ago
Read 2 more answers
What do viceroy butterflies use to look like poisonous Monarch butterflies?
dimulka [17.4K]
Monarch caterpillars consume milkweed plants and Viceroy caterpillars eat willows. You can tell the difference between the two now by their flight patterns. I would say the answer to your question is that though they are similar, Viceroy were the “uglier” for the simple reason of survival. Predators would find their coloration as un-tasty.
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3 years ago
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Determine whether the graph is that of a function by using the vertical-line test. If it is, use the graph to find (a) its domai
Ilia_Sergeevich [38]

Answer:

Following are the solution to this question:

Explanation:

If the draw a line perpendicular with y-axis thru the diagonal line check but it meets only one curved point, therefore the curve indicates a function not otherwise.  They draw a vertical line perpendicular to the y-axis there, it just intersects one more chart point, which is why a graph is a feature:

In point a:

\to Domain= [-\pi ,\pi ]\\\\\to Range = [-1,1]

In point b:

Its y-axis length cut also by understanding the benefits of y-interception and the x-axis length gives the x-intercept.  

\to y-intercept = 1\\\\\to x-intercept = \frac{\pi}{2} ,- \frac{\pi}{2} \\\\

In point C:

Every graph is y-axis symmetric because the left side of the column as well as the middle side of the graph is about the same.

3 0
2 years ago
How long can a proton-antiproton pair exist without violating the principle of the conservation of mass?
REY [17]
Anti proton are short lived anti-particles of protons that has a charge of -1. When they encounter their counter part, which is the proton, they exist for a short span of time only since they will be annihilated and burst into a form of energy.
4 0
2 years ago
A sample of gas occupies 75.5 mL at -14.2°C. What volume does the sample occupy at 146.7 °C?
bixtya [17]
Well you would use Charles V1/T1 = V2/T2. Look at the picture for more explanation
8 0
1 year ago
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