Q: While normal light microscopes can magnify objects up to about 1,500 times, what advanced instruments can magnify objects up to 1,000,000 times? Choices: - magnetic microscopes - micro microscopes - electric microscopes - electron microscopes A:
electron microscopes

(Question)
Q: Equilibriums are affected by changes in concentration, total pressure or volume, and this? Choices: - time - oxygen - rate - temperature A:
(Answer)
temperature

Ques: Q: Topographic maps have a horizontal scale to indicate what distances? Choices: - diagonal - vertical - perpendicular - horizontal A:
Ans: horizontal

(Q).
Q: Generally speaking, electronegativity values ______ from left to right across a row in the periodic table and _______ down a column. Choices: - reverse, descend - move, fall - decrease, increase - increase, decrease A:
(A).
increase, decrease

Ques:Q: Which is the fourth planet from the sun? Choices: - mars - jupiter - earth - mars A:

Ans:mars

Question: Q: What is a hydrocarbon in which there are only single covalent bonds? Choices: - combined - proline - fullerene - alkane A:
Answer:
alkane