Answer:
8.8 yards per second
Explanation:
50 - 20 = 30 yards
30 yards/3.4 seconds = 8.8235
I believe that east Texas is shaded green because it either has a grassy plain or there are a lot of grassy hills and I think that west Texas is shaded brown because it is like a desert.
Answer:
1- Yes, we can calculate the solubility of mineral compound X.
2- 0.012 g/mL.
Explanation:
<em>1- Using only the information above, can you calculate the solubility of X in water at 15.0 °C? </em>
The information available is:
The volume of water sample = 25.0 mL.
Weight of the mineral compound X after evaporation, drying, and washing = 0.30 g.
∴ Yes, we can calculate the solubility of mineral compound X.
<u><em>2- If you said yes, calculate it.</em></u>
∵ 25.0 mL of water sample contains → 0.30 g of the mineral compound X.
∴ 1.0 mL of water sample contains → ??? g of the mineral compound X.
1.0 ml of water sample will contain (0.3 g/25.0 mL) 0.012 g.
<em>∴ The solubility of the mineral compound X in the water sample is</em> <u><em>0.012 g/mL.</em></u>
<u><em></em></u>
Answer:
a. BH₃
Explanation:
According to the octet rules, atoms reach stability when are surrounded by eight electrons in their valence shell when they combine to form a chemical compound.
From the options, the only compound in which the central atom does not meet the octet rules is BH₃. The central atom is boron (B), which has 3 electrons in its valence shell. When B is combined with hydrogen (H), 3 electrons from the 3 atoms of H are added. <em>The total amount of electrons is 6</em>, <em>fewer than 8 electrons</em> needed to meet the rule.
Magnetic reversals
Explanation:
A change in the orientation of the earth's magnetic field is known as magnetic reversals.
During a magnetic reversal, the geographic south pole aligns with the magnetic north.
The geographic north pole aligns with the magnetic south.
- The geomagnetic field of the earth is produced by the movement of metallic minerals in the outer core.
- This streaming of metallic minerals generals electric current that induces a magnetic field.
learn more:
Sea floor spreading brainly.com/question/12037536
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