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madam [21]
2 years ago
12

How did Mendeleev set up his Periodic Table of Elements?

Chemistry
1 answer:
Ksju [112]2 years ago
8 0
He set up his periodic table by the atomic mass
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Here is a chemical formula 3CO2 to the coefficient in the formula is
Flura [38]
The coefficient for the chemical formula 3CO2 is the 3.
5 0
3 years ago
what ph indicator is added to the simmons citrate agar? group of answer choices phenol red methylene green bromothymol blue litm
NikAS [45]

The most common pH indicator used in Simmons Citrate Agar is Bromthymol Blue (BTB)

Simmons Citrate Agar is a selective and differential medium used for the detection and differentiation of Enterobacteriaceae (gram-negative bacteria).

The medium contains sodium citrate as the sole carbon source, which is used to differentiate organisms based on their ability to utilize citrate as a sole carbon source.

The medium also contains pH indicators that change color based on the pH of the medium. The most common pH indicator used in Simmons Citrate Agar is Bromthymol Blue (BTB).

BTB is a pH indicator that turns yellow in acidic conditions and blue in basic conditions. As the bacteria metabolize the citrate in the medium, they produce acids, which cause the medium to become acidic.

This change in pH is detected by the BTB, which changes color from blue to yellow. The yellow coloration of the medium is an indication that the organism is utilizing citrate as a sole carbon source.

To know more about agar, click below:

brainly.com/question/4634808

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7 0
8 months ago
¿Cuál será la masa molar del agua?, si el hidrógeno tiene una masa atómica H=1.0 uma y el Oxigeno de 16 uma. * 1 punto
nataly862011 [7]

Answer:

18

Explanation:

Sabemos que la fórmula química del agua es H2O.

Usando la información que; H = 1, O = 16, podemos calcular la masa molar del agua de la siguiente manera

[2 (1) + 16] = 18

Por tanto, la masa molar del agua es 18

3 0
2 years ago
What are the hydrocarbon names?
IceJOKER [234]

Answer:

Carbon    Prefix       Structure

1          Methane       CH4

2         Ethane        CH3CH3

3         Propane   CH3CH2CH3

4         Butane   CH3(CH2)2CH3

5         Pentane  CH3(CH2)3CH3

6         Hexane   CH3(CH2)4CH3

7         Heptane   CH3(CH2)5CH3

8         Octane    CH3(CH2)6CH3

9         Nonane     CH3(CH2)7CH3

10        Decane      CH3(CH2)8CH3

11        Undecane     CH3(CH2)9CH3

12       Dodecane     CH3(CH2)10CH3

Explanation:

7 0
3 years ago
How many moles of zinc chloride will be produced when 112 grams of zinc oxide is used?
Alexandra [31]

Answer:

1.38 moles

Explanation:

My teacher gave us the answer on a quiz so here if y’all want a explanation I’ll give y’all one tho

3 0
3 years ago
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