itzmoomoo1 itzmoomoo1

10-11-2020
Chemistry

contestada

What is a sign that a chemical change has happened?
O A. A substance dissolves.
O B. Sound and heat are produced.
OC. A substance changes temperature.
O D. A change of state happens.

Respuesta :

maggie1008 maggie1008

10-11-2020

I believe D is the answer.

Answer Link

Otras preguntas

30 POINTS In the following sentence the verb is in the tense. The cats had run away several times before. PAST PERFECT PRESENT PERFECT FUTURE PERFECT

P varies directly as the cube root of Q. if P=25 when Q= 125, find the value of Q when P= 15

70- 100 words please

Write a short passage on one section in global village (clothes - shopping - tourism - singing - exist - beautiful - spices)

ASAPPP WHATS THE DIFFERENCE BETWEEN RATIONAL AND IRATIONAL NUMBERS WILL MARK AS BRAINELIST A LOT OF POINTS

Simplify. 5 2+20 5 30 45 72 (The 5 2 is an exponent.)

(4 ² +24) = |(3 - 7) - 16|= 3 5 1 2

6. was in charge of the removal for the Bureau of Indian Affairs?

Mr. Ankamah walks for 32 munites each day to work. Fine the time he well used to walk for 21 days to work, leave the answer in hours.

If point A is reflected over the y-axes, what are the coordinates of its image?