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Nonamiya [84]
3 years ago
10

Chemical equation of 2 atoms of potassium metal react with 2 molecules of liquid water to produce 2 molecules of Solid potassium

hydroxide and one molecule of hydrogen gas
Chemistry
1 answer:
Sliva [168]3 years ago
4 0
2K + 2H2O -----> 2KOH + H2

The question is telling you what are the reactants and products .
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How to tell which element is oxidized in a reaction?
adoni [48]
If in a redox reaction oxidation state of elements decreases or looses electron(s), the element is said to be oxidized. Hope this helps you!
4 0
3 years ago
The number of kilograms of water in a human body varies directly as the mass of the body. upper a 93​-kg person contains 62 kg o
Bad White [126]

Answer;

56 kg of water


Solution;

Weight = 62 kg of water in 93 kg of a person

W=km

62=93k;

k=2/3

W=(2/3)84

=56 kg

Therefore; a 84-kg person will have 56 kg of water.

4 0
3 years ago
In the titration of wine to determine the acid concentration, 10.0 mL of wine was placed in a beaker and diluted with 40.0 mL of
BARSIC [14]

Answer:

0.0042 M is the molarity of tartaric acid in this sample of wine.

Explanation:

To calculate the concentration of acid, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is tartaric acid

n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is NaOH.

We are given:

n_1=2\\M_1=?\\V_1=10.0+40.0 mL=50.0 mL\\n_2=1\\M_2=0.051 M M\\V_2=8.20 mL

Putting values in above equation, we get:

2\times M_1\times 50.0 mL=1\times 0.051 M\times 8.20 mL

M_1=\frac{1\times 0.051 M\times 8.20 mL}{2\times 50.0 mL}=0.0042 M

0.0042 M is the molarity of tartaric acid in this sample of wine.

6 0
3 years ago
Riley is scootering down the street before they come to a stop at a stop
11111nata11111 [884]

Answer:

just subrracted them and find out whats m

Explanation:

6 0
3 years ago
Can a scientific theory turn into a scientific law?
beks73 [17]
Possibly, Yes if it is proven
4 0
3 years ago
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