Weather fronts are more likely to be located north and come from the north too. As the earths axis and tilt changes so does our seasons. In the winter we are farther away from the sun especially in the north where it is farthest so the weather is colder. Therefore if cold weather occurred we can predict it is coming from the north.
Answer:
A compound contains atoms of different elements chemically combined together in a fixed ratio. An element is a pure chemical substance made of same type of atom.
Explanation:
Answer:
1. 2Na + 2HCl = 2NaCl =H2
2. 2Mg + O2 = 2MgO
Explanation:
make sure that the number of atoms of each element is the same on each side of the equation
1. 2Na + 2HCl = 2NaCl =H2
<em><u>on LHS of equation,</u></em>
Na = 2
H = 2
Cl =2
<em><u>On RHS of equation, </u></em>
Na=2
H= 2
Cl =2
2. 2Mg + O2 = 2MgO
<em><u>on LHS of equation,</u></em>
Mg = 2
O2 = 2
<em><u>On RHS of equation, </u></em>
Mg = 2
O2 = 2
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Answer:
virtual
Explanation:
because we cannot touch or sense it
0.06 has one significant figure (unless there are zeros written after it). So I would round the result to 6000. Some teachers prefer at least 2 significant figures though.
