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Alchen [17]
2 years ago
13

Baking a loaf of bread is chemical or physical reaction

Chemistry
2 answers:
malfutka [58]2 years ago
8 0
I guess chemical hmmmmmmmmmmm yes I think it issss
Deffense [45]2 years ago
3 0

Answer:

it is a chemical reaction.

Explanation:

This is an irreversible chemical change, because by consuming the sugar, the yeast has created new substances.

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Someone help please , I’ll give brain . Question 10 !
Rudik [331]

Answer:it’s c

Explanation:

I just know it is

4 0
3 years ago
Would you expect an atom to have a charge?
puteri [66]

Answer:

An atom consists of a positively charged nucleus, surrounded by one or more negatively charged particles called electrons. The positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral.

4 0
9 months ago
An element is a pure substance in which there are how many kinds of atoms?
Ostrovityanka [42]

Answer:

One

Explanation:

An element is a pure substance in which there are only one kind of atom. Elements are distinct substances that cannot be split up into simpler substances.

Such substances consists of only one kind of atom. There are over a hundred known elements to date.

Generally, as a pure substance, the composition of an element is definite and they are homogenous in all parts.

8 0
2 years ago
You burn a 15g jellybean to warm 50 mL of water, which increases the temperature of the water 25 °C. How many calories of heat a
Juli2301 [7.4K]

Answer:

Q = 375\,cal

Explanation:

The quantity of heat transfered from the jellybean to the water is:

Q = \rho\cdot V \cdot c\cdot \Delta T

Q = \left(1\,\frac{g}{cm^{3}}\right)\cdot (15\,cm^{3})\cdot \left(1\,\frac{cal}{g\cdot ^{\circ} C} \right)\cdot (25\,^{\circ}C )

Q = 375\,cal

7 0
2 years ago
Read 2 more answers
If a scientist knows the relative age of a fossil, he can also know
Rasek [7]
C I think is the right answer
4 0
2 years ago
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