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Alecsey [184]
3 years ago
5

How many grams of zinc are needed to produce 25.0 g ZnCl2

Chemistry
1 answer:
RideAnS [48]3 years ago
5 0
To solve this question, you would first need to write the reaction and then be able to convert one unit to another the critical unit of moles and then be able to convert it back into grams.

Zn + Cl2 -> ZnCl2.
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What is the [OH-] of a substance that has a pH of 11?
Deffense [45]

Answer:

0.001 M OH-

Explanation:

[OH-] = 10^-pOH, so

pOH + pH = 14 and 14 - pH = pOH

14 - 11 = 3

[OH⁻] = 10⁻³ ; [OH-] = 0.001 M OH-

6 0
3 years ago
Many types of scientific equipment are used to perform different functions in the science lab. Which of the following combinatio
alisha [4.7K]

The scientific instruments used to heat water to 85 degree Celsius has been graduated cylinder, beaker, thermometer, and hot plate. Thus, option B is correct.

Scientific equipments have been defined as the instruments and glassware that has been used in the scientific study and experimentation.

<h3>Equipments for heating the water</h3>

The water has been heated to the temperature of 85 degrees Celsius. The temperature has to be monitored thus, a thermometer has been used.

The water has been measured to be 1 L, thus the graduated cylinder, and beaker has been used for the measurement and heating of water.

The heat has been provided to the beaker by placing it on a hot plate.

Thus, the scientific instruments used to heat water to 85 degree Celsius has been graduated cylinder, beaker, thermometer, and hot plate. Thus, option B is correct.

Learn more about scientific equipments, here:

brainly.com/question/24690874

3 0
3 years ago
Read 2 more answers
The ___ variable responds to the __ variable and goes on the Y-axis.
ale4655 [162]

Answer: 1. Dependent, Independent The dependent variable responds to the independent variable and goes on the Y-axis.

Explanation: The independent variable is controlled or manipulated by the experimenter. For example, someone's age might be an independent variable. Other factors (such as what they eat, how much they go to school, how much television they watch) aren't going to change a person's age.The dependent variable is what you are measuring. For example, a test score could be a dependent variable because it could change depending on several factors such as how much you studied, how much sleep you got the night before you took the test, or even how hungry you were when you took it.

How that helps. :)

3 0
2 years ago
1. How do aquatic animals obtain oxygen?
Ilya [14]

Answer:

the second one filter for dissolved

Explanation:

3 0
3 years ago
How do you convert 250 mL into "cubic meters"? ? I'm confused because of the word "cubic". thanks
lakkis [162]
1000 liters equal to one cubic meter
so 250 ml is equal to 0.25 liters.

where it is 0.25 m cube
5 0
3 years ago
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