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olga55 [171]
3 years ago
6

PLEASE ANSWER

Chemistry
1 answer:
Varvara68 [4.7K]3 years ago
7 0
I don’t know the answer to this question
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5 Points
GrogVix [38]

Answer:

B

Explanation:

By looking at how seismic waves change speeds as they travel

through Earth

3 0
3 years ago
Read 2 more answers
How do the circulatory and the excretory systems work together to maintain the human body on a daily basis?
mr_godi [17]
The circulatory system picks up nitrogenous wastes from the cells and delivers them to the kidneys. The kidneys remove these wastes from the blood and concentrates them into the urine that is eliminated from the body.
4 0
3 years ago
What does the graph show about the rate of temperature change over time?
Dmitry [639]

Answer:

The temperature is the same overtime.

Explanation:

Since the line on the graph is straight the temperature will be constant.

3 0
2 years ago
The following information is to be used for the next 2 questions. In order to analyze for Mg and Ca, a 24-hour urine sample was
Ainat [17]

Answer:

Explanation:

From the given information:

The concentration of metal ions are:

[Ca^{2+}]= \dfrac{0.003474 \ M \times 20.49 \ mL}{10.0 \ mL}

[Ca^{2+}]=0.007118 \ M

[Mg^2+] = \dfrac{0.003474 \ M\times (26.23  - 20.49 )mL}{10.0 \ mL}

=0.001994 \ M

Mass of Ca²⁺ in 2.00 L urine sample is:

= 2.00 L \times 0.001994 \dfrac{mol}{L} \times \dfrac{40.08 \ g}{1 \ mol}

= 0.1598 g

Mass of Ca²⁺ = 159.0 mg

Mass of Mg²⁺ in 2.00 L urine sample is:

= 2.00 L \times 0.007118 \dfrac{mol}{L} \times \dfrac{24.31 \ g}{1 \ mol}

= 0.3461 g

Mass of Mg²⁺ = 346.1 mg

5 0
3 years ago
Please help help I need help ASAP What can you infer about the heartbeat when the pulse rate increases?
Svetradugi [14.3K]

Answer:

The heart is pumping more blood throughout your body

Explanation:

6 0
2 years ago
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