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6 months ago

Would you expect an atom to have a charge?

Chemistry

1 answer:

puteri [66]6 months ago

4 0

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.

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Consider a three sequentially stepped process named as Process A, Process B and Process C. Input comes into Process A. Output fo

weqwewe [10]

Answer:B the buffer will be placed in process B

Explanation:

Buffer is the extra time added to a time estimate to keep a project on track. Since process B takes a longer time to process, the buffer will be added to prevent unforseen situations.

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3 years ago

When light hits the Earth at a greater angle, what does this cause?

crimeas [40]

Angle of Solar Radiation and Temperature

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2 years ago

Initial temperature of metal =

Evgesh-ka [11]

Answer:

the correct answers is 100 22.7 and 24.6

Explanation:

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3 years ago

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Marianna [84]

Answer:

Explanation:

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2 years ago

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5. How much heat (in calories) is absorbed by a reaction when

Wewaii [24]

Answer:

1.2 × 10⁴ cal

Explanation:

Given data

Mass of water (m): 300 g

Initial temperature: 80 °C

Final temperature: 40°C

We can calculate the heat released by the water ( $Q_w$ ) when it cools using the following expression.

$Q_w = c \times m \times (T_f - T_i)$

where

c is the specific heat capacity of water (1 cal/g.°C)

$Q_w = \frac{1cal}{g.\°C} \times 300g \times (40\°C - 80\°C) = -1.2 \times 10^{4} cal$

According to the law of conservation of energy, the sum of the heat released by the water ( $Q_w$ ) and the heat absorbed by the reaction ( $Q_r$ ) is zero.

$Q_w + Q_r = 0\\Q_r = -Q_w = 1.2 \times 10^{4} cal$

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2 years ago