All categories

3 years ago

Not sure if my answers are even correct. i am so confused

Chemistry

1 answer:

Mamont248 [21]3 years ago

7 0

Answer:

#3 is the percentage for sodium i believe and 4 is right

Explanation:

You might be interested in

1.What are pollen grain? 2. what is an embryo?

swat32

Answer: 2= baby being developed= embryo 1 i dont know sorry

Explanation:

3 0

3 years ago

Read 2 more answers

What is the correct balanced equation for the reaction of sodium with water?

Wittaler [7]

Answer:

A. 2Na + 2H₂O → 2NaOH + H₂

Explanation:

When sodium is reacted with water, a single replacement reaction occurs. The product of the reaction is typically sodium hydroxide and hydrogen gas.

Reactants:

Sodium + water

Product:

Sodium hydroxide + hydrogen gas

So;

2Na + 2H₂O → 2NaOH + H₂

6 0

2 years ago

25. What is a subdivision of a family? * O kingdom O domain O genus O species

Anni [7]

The answer I believe is genus

7 0

2 years ago

What volume of 24% trichloroacetic acid (tca) is needed to prepare eight 3 ounce bottles of 10% tca solution?

Sever21 [200]

Answer:

295.7 mL of 24% trichloroacetic acid (tca) is needed .

Explanation:

Let the volume of 24% trichloroacetic acid solution be x

Volume of required 10% trichloroacetic acid solution =8 bottles of 3 ounces

= 24 ounces = 709.68 mL

(1 ounces = 29.57 mL)

Amount of trichloroacetic acid in 24% solution of x volume of solution will be equal to amount of trichloroacetic acid in 10% solution of volume 709.68 mL.

$x\times \frac{24}{100}=709.68 mL\times \frac{10}{100}$

x = 295.7 mL

295.7 mL of 24% trichloroacetic acid (tca) is needed .

6 0

3 years ago

What is the definition of toxicity?

larisa [96]

Answer:

The level of toxins in solutions

4 0

2 years ago

Read 2 more answers