if you were making an observation of two substances, The five conditions of chemical change would be color chage, formation of a precipitate, formation of a gas, odor change, temperature change. i hope this helps
As a guess because they can be a right answer and some times they are not
Answer:
D) 38
Explanation:
Most eukaryotes use meiosis as a type of cell division to produce reproductive cells, also known as gametes, this cells are used for sexual reproduction where they fuse together in a process known as fertilization. Somatic cells are diploid while gametes are haploid.
Diploid = 2 (n)
Haploid = n
If the gametes are haploid and contain 19 chromosomes (n= 19), somatic cells must have twice the number (2 * 19 = 38). Options A, B or C are not possible be.
Answer:
Nucleus, are multicellular and can be seen
Explanation:
2 is the answer;
1 - alpha has 2 protons and two neutrons and no electrons, and they have a positive charge. Beta particles have high energy electrons and are negative charged.
3 - Gamma radiation is.
4 - Of course not. They don't have 2p and 2n in its nucleus as Helium does.
