Which of the following measurements is written with two significant figures?

A. 0.00400 mL

B. 0.00404 mL

C. 0.00044 mL

D. 0.00440 mL

I am doing a project on pulley how it impact our daily lives

The heart is protected from the bones by the.

At 73.0 ∘c, what is the maximum value of the reaction quotient, q, needed to produce a non-negative e value for the reaction so42 - (aq) + 4h + (aq) + 2br - (aq) ⇌br2 (aq) + so2 (g) + 2h2o (l) in other words, what is q when e=0 at this temperature?

If heat energy is removed from a sample of water the water will most likely?

Why do you think that the electrons are not shown?

What is the pressure, in mm Hg, of 2.50 moles of an ideal gas if it has a volume of 50.0 liters when the temperature is 27.0° C?

What element has the same valence electrons as carbon A) N B) AI C) Si or D) Be

What element is represented by the following electron configuration: 1s22s22p63s23p64s23d4 Question 2 options: Cr Ca Ge Ar

He substance, cocl2, is useful as a humidity indicator because it changes from pale blue to pink as it gains water from moist air. What is its name?

The weighted average atomic mass of an element depends upon the a. relative abundance of protons in the element b. mass and relative abundance of each isotope of that element c. mass and relative abundance of each neutron of that element d.