PLS ANSWER CORRECTLY 50 POINTS AND BRAINLIEST!!!
During an investigation, a scientist burned 48 g of magnesium strip. After the reaction, the total mass of the product formed was found to be 80 g. Does the law of conservation of mass hold true in this case? Use complete sentences to justify your answer based on numerical calculations.

Answers

Answer 1

Answer

yes

Explanation:

the law of conservation of mass hold true in this case burning magnesium strip is explained by this equation 2 Mg (s) + O2 (g) -> MgO (s)So the lighter magnesium, after reacting with oxygen in air, forms the heavier magnesium oxide. molar mass of magnesium and magnesium oxide are 24g and 40g respectively. So the same ratio 24:40 (i.e. 3:5) is maintained in the given masses of 48g and 80g, which means mass is conserved in the reacion.


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Answers

Answer:

The whole world is covered with rocks.

Sahil watched a demonstration in which a scientist combined two substances in a sealed container and analyzed the results. The ending substances did not look the same as the starting substances.Sahil was given a diagram with the repeating groups of atoms that make up the starting substances, plus information about the properties of the starting and ending substances. He created a model of the repeating groups of atoms that might make up the two ending substances.Does his model correctly show why the properties of the ending substances are different from the properties of the starting substances? Describe what could be correct or incorrect about his model.

Answers

This model correctly show the chemical reaction that take place in this model.

Is this model show correctly the process?

This model correctly show the properties of the ending substances that are different from the properties of the starting substances because the properties of product are different from the reactants.

So we can conclude that this model correctly show the chemical reaction that take place in this model.

Learn more about model here: https://brainly.com/question/723406

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Homeostasis means maintaining

Your answer:

varied internal conditions.


varied offspring.


similar offspring.


stable internal conditions.
plz help this for sience

Answers

stable internal conditions

Name 1 object that you would use the following types of measurements for; Mass, Volume and Density.

I need this by 8:30

Answers

Scale or a balance is 95% correct and 5% wrong because I’m not confident if that’s correct.

HELPPPPPPP!!!!!!!!!!

Answers

Answer:

It is D

Explanation:

Im 90% percent sure

It’s D hope it helps

What is the one or two letter character used to identify an element?

element symbol

chemical symbol

chemical name

atomic letters

Answers

a. element symbol!!!
it’s element symbol so nitrogen stands for N
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