another math question
Mathematics, 21.06.2019 14:50
I already have my work written! but my teacher said that numbers 2 and 3 are messed up! I'll give you the most points because you said "good start on this activity! for full credit please resubmit and try again if mass is conserved for reactions #2 and #3, I know who got it!" Mass Conservation Activity Worksheet Instructions: Observe and discuss the interactions between the substances represented on the slide show. compare the properties of substances before and after each interaction. submit your completed worksheet for evaluation. data table In the table below, record your observations before and after the interactions, and explain how mass was conserved. describe changes in properties that show that a chemical reaction has taken place. the first line is an example. 3 observations before the interaction observations after the interaction how was mass conserved? proof of a chemical reaction example: sugar + heat sugar is small white particles in a bunch. the heat is not seen, but is implicit in the heat source. the pile of sugar in the pan has a mass of 100 grams. there is a solid light brown mass in the bottom of the pan. has a mass of 100 grams. the mass of sugar is the same in the melted form and in the form of a solid crystal. there was no chemical reaction. sugar has not changed its composition. just melted the melting point is a physical property, and this is a physical change. steel wool + oxygen (fire) steel wool is like cloth, but it is electric and has a mass of 6 grams, until you touch the heat. When heat is applied to the steel wool, the heat like that from the batteries attracts the steel wool, it begins to heat up until it is hot enough to start a fire. well mass is neither created nor destroyed it depends on the mass of a substance i will say there is a chemical reaction by how fire burns and reacts if it was a sugar stove like the example says it just melted then it is the only physical change, which is why I consider steel, wood, and fire to be basically a chemical reaction and change. egg + soft-boiled eggs are simple and are from chickens, some eggs may be white or brown but there is no difference, an egg weighs about 40 grams or more. an egg carries a substance that weighs more than the egg. when the egg is broken, the egg weighs less than before it weighs at least 5 or 6. its mass changes because it was originally from an eggshell that carried it, with that, the shell weighs less, and the egg is now being cooked and heated, which should make the total weight of the egg about 8 or 10 grams. This would be called a physical change and would not be called a chemical change. water + heating water is a normal substance that can be drunk or boiled and for all kinds of things, but let's say we have a glass of water, which is about 60 grams. if we take the water and put it in the saucepan, it would still be the same number of grams because we just pour it into a cup that weighs about the same as a saucepan. now let's say if we boil the water, when we boil the water for a long time, it starts to get hot and soon it evaporates into steam or smoke, so it reduces to about 20 to 30 grams. the water is now heating up which means it will boil and drop the weight which is now 20 to 30. This would be called a thermal change and it would be called a physical change due to evaporation of the water. zinc is like a stone weighing about 10 grams. hydrogen chloride weighs at least 6 grams. the hydrogen becomes bubbly after interacting with the zinc, which should now weigh about 4 or 3 grams. are equal to the same amount of mass, both are products of mass. It's a chemical because, for example, think about paint and vinegar, we all know it bubbles up and it's like a volcano, so it would be called a chemical change. sodium hydroxide + copper sulfate sodium hydroxide is clear and copper sulfate is blue, both have different weights. blue is 57 grams and clear is 0 grams. the only thing that changes is that it is a different color. Also, sodium sulfate now weighs 47 grams and copper weighs 20 now that they have interacted. they look the same after being together. I will say that this is a chemical change, as well as a chemical reagent.
Answers: 3
Respondedor
Mathematics, 21.06.2019 17:30
Choose the number sentence that shows the identity property of addition. The. 122 = 61 + 61b. 62 = 1 + 61 c. 61 = 0 + 61
Answers: 1
Respondedor
Mathematics, 21.06.2019 19:00
What is not true about kl and mn? what is mn (Show)
Answers: 2
Respondedor
Mathematics, 06/22/2019 03:00
Let f(x) = 1/x^2 (a) use the definition of the derivative to find f'(x). (b) find the equation of the tangent line at x=2
Answers: 2
Respondedor
Do you know the correct answer?
Marlena created a table of values that represents the height in feet, h(t), of a falling coconut in...
Questions
History, 17.06.2021 18:50
Analyze and evaluate the impact that foreign trade had on the religious culture of the Sahelian kingdoms. Describe the role of Mansu Musa in the establishment...
Mathematics, 06.17.2021 18:50
Howard is sitting on a raft at an elevation of 0.8 points above sea level.
Mathematics, 06.17.2021 18:50
30 POINTS Use the function f(x) = 4x2 − 7x − 15 to answer the questions Part A: Factor f(x) completely. (2 points) Part B: What are the...
Mathematics, 06.17.2021 18:50
Find the slope of the line below. Enter your answer as a fraction or decimal. Use a forward slash (/) as the forward slash if necessary.
Mathematics, 06.17.2021 18:50
Hi, can someone answer this question for me? I would really appreciate it.
Mathematics, 06.17.2021 18:50
What is the next sum? 4V5+2V5...
Mathematics, 06.17.2021 18:50
Please help, I can do my best if you write clearly and give a good explanation. (space)
Business, 17.06.2021 18:50
Percentage of Sales Method At the end of the current year, the accounts receivable balance is $805,000; The Provision for Credit Risks is based on...
Business, 17.06.2021 18:50
cartwell inc manufactures picture frames that are sold at a local retail store and through various websites. $ 19,500 4,900 WOOD for frames Rent by area...
Business, 17.06.2021 18:50
Map a business process using a flowchart for an entire hospital system, including admission, treatment, discharge, billing, and payments.
Español, 17.06.2021 18:50
5 historical factors that prevented racism in South Africa...
Mathematics, 06.17.2021 18:50
In a high school, the probability that a student is a senior is 0.25. The probability that a student plays a sport is 0.15. The probability of a...
Mathematics, 06.17.2021 18:50
It is necessary to find the equation of a line given two points. Samuel asserts that the slope-intercept form will generate the equation, and Helena asserts that p...
Physics, 06.17.2021 18:50
WHAT IS THE TOTAL WEIGHT NEEDED TO BREAK THE FOLLOWING STRANDS-1. COTTON2. WOOL3. SILK4. NYLON...
Physics, 06.17.2021 18:50
A ball is dropped from the top of a building. Initially it moves at 40 m/s. After 0.5 seconds, it is moving at 3.8 m/s. What is the response force...
Mathematics, 06.17.2021 18:50
Three players had a score above 250 and the fourth had a score of 225. The total of the 4 scores was 1110 and no pitcher scored a perfect 300.
English, 17.06.2021 18:50
Which of the following sentences uses the correct form of the pronoun? A. She and they started petting giraffes. B. They and I also help the janitor feed a panda...
Mathematics, 06.17.2021 18:50
What is the degree of the polynomial? 5x²+8x²- 4x⁴+x. (a) 2 (b) 1 (c) 4 (d) 8...
History, 17.06.2021 18:50
Help as soon as possible, just say what order please...
Mathematics, 06.17.2021 18:50
Use the calculator to evaluate each expression. Round your answers to the nearest hundredth. (GIVING THE BEST ANSWER TO THE BRAIN)
More questions: MathematicsOther questions