3 years ago

PLS HELP ASAP I WILL MARK BRAINLYEST AND I WILL GIVE 5 EXTRA POINTS

Chemistry

1 answer:

mestny [16]3 years ago

3 0

Answer:

8 X 100

Explanation:

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How many molecules are in the following formula?<br> 2(NH4)3PO4

poizon [28]

Answer:15 I think

Explanation:

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4 years ago

What element is NaCl?

ale4655 [162]

Sorry but NaCl is a ionic compound not an element though it's made up of two elements sodium and chlorine

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3 years ago

Read 2 more answers

Determina el pH del café cuya concentración de H+ es de 0.00001M

lara31 [8.8K]

Answer:

Explanation:

Given parameters:

Hydrogen ion concentration = 0.00001M

Unknown:

pH of the solution =?

Solution:

The pH is used to estimate the degree of acidity or alkalinity of a solution. To solve for pH of any solution, we use the expression below;

pH = -log [H⁺]

[H⁺] is the hydrogen ion concentration

pH = -log (1 x 10⁻⁵)

pH = -(-5) = 5

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3 years ago

What type of energy transfer takes place when we hold a hot mug?

dedylja [7]

Radiation, because heat travels in all directions Convection, and heat travels in all directions Conduction, and it also heat travels from hot to cold Radiation, because heat travels from cold to hot.

4 0

4 years ago

A bug travels at the rate of 3.0 miles per hour. How fast is this in um/nsec? Hint: 2.54cm = 1 inch and 1 mile = 5,280 feet

kirza4 [7]

Note that
1 mi = 1609.34 m = 1609.34 x 10⁶ um
1 h = 3600 s = 3600 x 10⁹ ns

Therefore the speed of the bug is
(3.0 mi/h)*(1609.34x10⁶ um/mi)*(1/3600x10⁹ h/ns)
$(3.0 \, \frac{mi}{h}) (1609.34\times10^{6}\, \frac{um}{mi} )( \frac{1}{3600\times 10^{9}} \frac{h}{ns} ) =1.34\,\times 10^{-3} \, \frac{um}{ns}$

Answer: $1.34 \times 10^{-3} \, \frac{\mu m}{ns}$

4 0

4 years ago