![subject](/tpl/images/cats/fizika.png)
Physics, 08.01.2020 03:31 polarbear3787
When determining whether a chemical reaction has taken place, you observe and look for several indicators. which would be considered an indication that a chemical reaction or chemical change has taken place?
a) solid melts.
b) heat is given off.
c) substance dissolves
d) substance changes shape.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Physics
![image](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 17:00, firdausmohammed80
Heat from the sun reaches earth to a. radiation b. convection c. conduction
Answers: 2
![image](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 19:30, Esmer1030
Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?
Answers: 3
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 10:30, arigar
Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.
Answers: 3
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 19:30, emma8292
Because atoms of elements in the same group of thbecause atoms of elements in the same group of the periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t fe periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t f
Answers: 1
You know the right answer?
When determining whether a chemical reaction has taken place, you observe and look for several indic...
Questions in other subjects:
![Konu](/tpl/images/cats/biologiya.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/informatica.png)
Computers and Technology, 27.06.2019 11:30
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/es.png)
![Konu](/tpl/images/cats/User.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 27.06.2019 11:30
![Konu](/tpl/images/cats/mat.png)
Mathematics, 27.06.2019 11:30