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Korvikt [17]
3 years ago
8

How to draw a model of CaO

Chemistry
1 answer:
morpeh [17]3 years ago
8 0

Answer:

Find how many atoms or whatever are in both, then once you know that.  Try to add them together.  

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Luca wants to identify and quantity the chemicals causing air pollution in a city, but he is using a manual air sampler to colle
xenn [34]

Answer

Manual samplers are prone to effects of temperature, speed of wind and air concentrations.

Explanation

Manual samplers face several challenges that can act as drawbacks to obtaining accurate results. They are subjected to effects of sampling duration where long sampling times are needed to obtain adequate mass for detection. Manual samplers face challenges when measuring non-volatile species because particles are observed into the adsorption medium at a slower rate of diffusion.

5 0
4 years ago
Which describes the role of oxygen in photosynthesis?
Basile [38]
Photosynthesis is the process utilized in the chloroplasts of plant cells, where carbon dioxide and water undergo a chemical process with radiant energy, usually from the sun. The resulting products are energy stored in the form of a glucose molecule, and oxygen, which is given off as a waste product.
5 0
3 years ago
Read 2 more answers
Choose the statement below that is TRUE. Question 7 options: The term "strong electrolyte" means that the substance is extremely
Setler [38]

Answer: A weak acid solution consists of mostly nonionized acid molecules.

Explanation:

Strong electrolytes are those solutions which undergo complete dissociation when dissolved in water. The dissociation of strong electrolytes is given by a right arrow.

Weak electrolytes are those solutions which do not undergo complete dissociation when dissolved in water. The dissociation of weak electrolytes is given by a rightleft arrow.

Weak acids are those substances which dissociate partially to give H^+ ions when dissolved in water. Thus most of molecules remain unionized in solutions.

CH_3COOH\rightleftharpoons CH_3COO^-+H^+

Strong acids are those substances which dissociate completely to give H^+ ions when dissolved in water.

HNO_3(aq.)\rightarrow H^+(aq.)+NO_3^-(aq.)

3 0
3 years ago
If a candy bar contains 345 Calories, how many calories is this?
Arisa [49]

Answer: 345,000 calories

Explanation:

Calories in food such as candy bars refer to the amount of energy that the food has. Calories are also called Kilocalories because they are the equivalent of 1,000 calories.

If the candy bar contained 345 calories therefore, and 1 Calorie is 1,000 calories, the calories in the candy bar are:

= 345 * 1,000

= 345,000 calories

4 0
3 years ago
What dos the line of red semicircles maen on the weather map
PIT_PIT [208]
The red semicircle shown in the weather chart represents warm front.

6 0
4 years ago
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