Can someone answer these questions, please? 1. Place the five substances in order of increasing pH—from most acidic to most basic.

2. Orange juice has a pH of 4. What color would you expect the paper test strip to be after it is dipped in a sample of orange juice?

3. Determining the pH of substances such as purple grape juice and catsup using test strips can be difficult. Why?

4. Tear–free shampoos are advertised as having a pH like that of human tears. What pH would you expect tear–free shampoos to be? Use evidence from the lab activity to support your response.

5. What is the approximate hydronium ion concentration and hydroxide ion concentration in a cup of tea? Which is higher? (Refer back to the chart of pH if you need to.)

6. What is the approximate hydronium ion concentration and hydroxide ion concentration in bleach? Which is higher?

i believe the answer is c. "baking" is the gerund, while "baking blueberry muffins" would be the gerund phrase. hope this ! : )

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence