During a chemical reaction can only 1 substance be produced? Why or why not

Answers

Answer 1

Answer:

The chemical reaction produces a new substance with new and different physical and chemical properties. Matter is never destroyed or created in chemical reactions. The particles of one substance are rearranged to form a new substance. .

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Aaron is visiting a national park in Pennsylvania. The ranger tells Aaron that he is unlikely to see any groundhogs because it is winter.Which of the following is the most likely reason Aaron would NOT see any groundhogs?

The groundhogs are hibernating.

The groundhogs migrated.

The groundhogs have died out.

The groundhogs are gathering food.

Answers

Answer:

The groundhogs are hibernating.

Explanation:

Groundhogs hibernate during the winter months and don't come out of their burrows.

The groundhogs are hibernating, during winter

What is the percent by mass of chlorine (Cl) in sodium chloride?

Answers

Answer:

60.7 %

Explanation:

just did it on edg

i believe it is 60.663%

How do you test a hypothesis using scientific inquiry

Answers

Once you have constructed an effective hypothesis, the next step in the scientific inquiry process is to test the hypothesis through experimentation. This is a great opportunity for students to start a science notebook, if they have not yet started recording their progress. Steps to Identifying and Conducting an Appropriate Experiment to Test a Hypothesis 1) Present Hypotheses  Make a list of all potential hypotheses to be tested. 2) Make Predictions  For each hypothesis, ask what would be true if the hypothesis were true. 3) Write the Experimental Procedure  The experimental procedure is a step-by-step recipe for the science experiment. A good procedure contains enough detail that someone else could easily duplicate the experiment. Once you have formed a hypothesis, you will need to develop your experimental procedure to test whether your hypothesis is true or false. 4) Identify the Independent and Dependent Variables  The first step of designing the experimental procedure involves planning how to change the independent variable and how to measure the impact that this change has on the dependent variable. To guarantee a fair test when conducting the experiment, make sure that the only thing changing is the independent variable. All controlled variables must remain constant. 5) Design the Experiments  How can you identify an appropriate experiment that will effectively test your hypothesis? Begin by asking yourselves, “What can I do that will give me one result if my hypothesis is true, and a different result if my hypothesis is false?” Design at least one possible experiment for each hypothesis. Be sure that each experiment tests only one hypothesis.

A measure of the strength of acid rain can be given using _____. an acid
a base
a pH scale
all of the above

Answers

The pH scale is used to measure the strength of acids and bases.

3.00 moles of helium gas (He) are in a container with a volume is 2.00 liters and a temperature is at 298 K. What is the approximate pressure in kilopascals?