Pollution and rising temperatures
Answer:
<em>1</em><em>.</em><em>Capillary action is important for moving water (and all of the things that are dissolved in it) around. </em>
<em>2</em><em>.</em><em>the pattern formed on an adsorbent medium by the layers of components separated by chromatography. </em>
Explanation:
hope this help you
We know that acids have a pH of under 7.
We also need to:
Set up an ICE table for the chemical reaction. Solve for the concentration of H3O+ using the equation for pH Use the concentration of H3O+ to solve for the concentrations of the other products and reactants.
Step 1: write the equation:
P₄(s) + 6F₂(g) → 4PF₃(g)
Step 2: Molar mass of P₄ = 30.97 g/mol × 4 = 123.88 g/mol
Step 3: Number of moles of phosphorus
n = m/M
n = 8.5 g/123.88g/mol
n = 0.07 moles
Step 4: 0.07 × 12 = 0.84 moles of fluorine.
Fluorine is diatomic gas so we multiplied the number of moles by 12.
Step 5: To find the mass of fluorine we multiply the number of moles with the molar mass.
Mass of fluorine = 0.84 × 228
= 191.52 grams.
Answer: All the circuits have energy source, wires and device that needs electrical energy in common.
Explanation: Electric circuit is a path through which electrons flow from higher potential to lower potential.
A wire is required to connect Energy source and a device that needs electrical energy to run. On the other hand, voltmeter and ammeter are the devices which are used to measure voltage and current respectively and not necessarily used in all the circuits.
Hence, the common components in an electric circuit are energy source, wires and device that needs electrical energy in common.
