All categories

3 years ago

Please help me with this chem question. Only answer if you know it.

Chemistry

2 answers:

Mashcka [7]3 years ago

7 0

Answer:

solid=(s)

Explanation:

A solubility table may be something your class may want you to memorize. Where an aqueous (aq) solution is formed by a soluble compound dissolving in water, our solvent. So if we refer to this solubility table, it says phosphate (PO4) is usually insoluble, so in the reaction it won't break down in water and will stay as a solid (s). The only exceptions are group 1 alkali metals or ammonium (NH4+).

mariarad [96]3 years ago

4 0

Your answer is b because it is

You might be interested in

Scientific explanations

Sergio039 [100]

I think that it's cannot include supernatural explanations, or C.

If i got it wrong sorry

6 0

3 years ago

Please help it's Chemistry

dsp73

Answer:nothing beats the chemistry between us :) smooth right?

Explanation:I’m pretty sure u have to show the part before the questions so that people can respond to it since there is no info on how to answer the question :p

7 0

3 years ago

What is the mass in grams of BaCl2 that is needed to prepare 200 mL of a 0.500 M solution

DENIUS [597]

Answer:

= 20.82 g of BaCl2

Explanation:

Given,

Volume = 200 mL

Molarity = 0.500 M

Therefore;

Moles = molarity × volume

= 0.2 L × 0.5 M

= 0.1 mole

But; molar mass of BaCl2 is 208.236 g/mole

Therefore; 0.1 mole of BaCl2 will be equivalent to;

= 208.236 g/mol x 0.1 mol

= 20.82 g

Therefore, the mass of BaCl2 in grams required is 20.82 g

6 0

3 years ago

To determine the concentration of X in an unknown solution, 1.00 mL of 8.48 mM S was added to 3.00 mL of the unknown X solution

kogti [31]

Answer:

positif

Explanation:

$3.87169.843826 = y = x = .ion \: in \: cells = y = x. > \\ \geqslant {8}^{2} \times \frac{4}{3} | \geqslant | \times \frac{68.1 < }{3 = 8}$

6 0

3 years ago

Why do you think the placebo effect works

timurjin [86]

Answer:

The placebo effect is when an improvement of symptoms is observed, despite using a nonactive treatment. It’s believed to occur due to psychological factors like expectations or classical conditioning.

Research has found that the placebo effect can ease things like pain, fatigue, or depression.

hope this will help u :)

7 0

3 years ago