Q: Q: What is a substance that increases the hydrogen ion concentration of a solution? A:

OPTIONS:
- carbon
- sulfur
- base
- acid

A: acid

input: OPTIONS:
- a crust
- a gorge
- a peak
- a basin Now, answer this question: Q: What is a three dimensional snycline? A:
A:
output: a basin

Q: During which phase does dna replication occur in the cell cycle? A:

OPTIONS:
- resting
- gap
- mitosis
- synthesis

Answer: synthesis

Problem: OPTIONS:
- they are half
- they are double
- they are triple
- they are equal
Q: Q: How does the number of protons compare to the number of electrons in an electrically neutral atom? A:
Answer: they are equal

Problem:OPTIONS:
- catalyst
- acid
- isomer
- base

Q: What is an ionic compound that produces negative hydroxide ions when dissolved in water A:
****
A: base

Problem:OPTIONS:
- anemometer
- Richter scale
- yardstick
- graduated cylinder

Q: In a science lab, what device would you use to measure the volume of a liquid? A:
****
A:
graduated cylinder