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statuscvo [17]
3 years ago
5

Which of the following is an example of a chemical change?

Chemistry
1 answer:
zhuklara [117]3 years ago
6 0
I believe it would be milk souring.
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Pls help me with this question
Drupady [299]
The answer is c hopefully I helped you
4 0
2 years ago
6. An alloy of iron contains 75.0% iron and 25.0% other elements. How many grams of iron are present in 150. g of the alloy?
Hoochie [10]

Answer:

108.5

Explanation:

half of 150 is 75 and half of that is 32.5. Add that to 75 and you'll get your answer

3 0
3 years ago
Pls answer this two ASAP PLSSSSSSSS
d1i1m1o1n [39]

Answer:

1. aa

2. They have similar DNA

Explanation:

1. According to the question 1, wrinkled seeds (A) are dominant over round seeds (a) in pea plants. This means that, based on the law of dominance proposed by Mendel, wrinkled seeds will be expressed over round seeds in a heterozygous state (Aa).

However, since the round seed phenotype is a recessive trait, it will only be expressed when the alleles for round seeds (a) are the same in the gene i.e. aa genotype.

2. Based on the information in question 2, Ricky, who is working on a family tree for his school project, realizes that his close relatives all look similar in the pictures he collected. This is possible because of the SIMILARITY OF THEIR DNA (genetic material). Note that, relatives are connected by the genes that are inherited from one another, hence, they possess a similar DNA, which is the most valid reason for the resemblance.

4 0
2 years ago
xidation in redox reactions involves a. a loss of electrons and an increase in the oxidation number b. a gain of electrons and a
Strike441 [17]

Answer:

Option a is the right one

Explanation:

Redox reactions are defined as the reactions where one element is oxidized (so the oxidation state is increased); and another element is reduced (oxidation state decreases). These changes in the oxidations states are defined by a transference of electrons.

When the oxidation state decrease → reduction → the element gains electrons

When the oxidation state increase → oxidation → the element release electrons

4 0
2 years ago
What are the different forms of energy into which solar energy can be changed?
Marysya12 [62]

Answer:

Electric and heat

Explanation:

Forms of solar energy include electricity and heat

7 0
2 years ago
Read 2 more answers
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