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3 years ago

Merrill is working in the lab, attempting to identify a mysterious element. Below are the properties she has identified:

1 answer:

8 0

Yes, metals react slowly to other elements. like lead, you know not all elements are magnetic, and yes most metals are malleable and ductile. no not all metals have a dull color. yes, most metals react slowly

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Khalad is measuring the amplitude of a wave. What can be known about this wave?

lorasvet [3.4K]

B.It is a transverse wave

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3 years ago

Read 2 more answers

How many atoms are in one molecule of baking soda, NaHCO3?

vladimir2022 [97]

Answer: 6 atoms in total

Explanation:

It has one sodium atom, one hydrogen atom, one carbon atom, and three oxygen atoms.

6 0

3 years ago

Calcium hydroxide is a strong base but is not very soluble ( Ksp = 5.02 X 10-6 ). What is the pH of a saturated solution of Ca(O

Misha Larkins [42]

Answer : The pH of a saturated solution is, 12.33

Explanation : Given,

$K_{sp}$ = $5.02\times 10^{-6}$

First we have to calculate the solubility of $OH^-$ ion.

The balanced equilibrium reaction will be:

$Ca(OH)_2\rightleftharpoons Ca^{2+}+2OH^-$

Let the solubility will be, 's'.

The concentration of $Ca^{2+}$ ion = s

The concentration of $OH^-$ ion = 2s

The expression for solubility constant for this reaction will be,

$K_{sp}=[Ca^{2+}][OH^-]^2$

Let the solubility will be, 's'

$K_{sp}=(s)\times (2s)^2$

$K_{sp}=(4s)^3$

Now put the value of $K_[sp}$ in this expression, we get the solubility.

$5.02\times 10^{-6}=(4s)^3$

$s=1.079\times 10^{-2}M$

The concentration of $Ca^{2+}$ ion = s = $1.079\times 10^{-2}M$

The concentration of $OH^-$ ion = 2s = $2\times (1.079\times 10^{-2}M)=2.158\times 10^{-2}M$

First we have to calculate the pOH.

$pOH=-\log [OH^-]$

$pOH=-\log (2.158\times 10^{-2})$

$pOH=1.67$

Now we have to calculate the pH.

$pH+pOH=14\\\\pH=14-pOH\\\\pH=14-1.67=12.33$

Therefore, the pH of a saturated solution is, 12.33

7 0

3 years ago

Can anybody do this?

lukranit [14]

Answer:

0.17907

Explanation:

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3 years ago

Erosion occurs when natural forces alter a landscape. What does it mean to alter a landscape?

Rzqust [24]

Alter means change or cause something in character

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4 years ago